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1 September 2008 Do Methyl Eugenol-fed Males of the Oriental Fruit Fly (Diptera: Tephritidae) Induce Female Re-mating?
Todd E. Shelly, James Edu
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Polyandry has been reported for various species of tephritid fruit flies, and efforts to explain this phenomenon have focused primarily on the respective roles of sperm stores and male accessory gland fluids. However, recent research on the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), demonstrated that female re-mating propensity was influenced by the “suitability” of available mates; preferred males were more likely to induce female re-mating than were less attractive males. The goal of this study was to determine whether male attractiveness similarly influenced female re-mating in the oriental fruit fly, Bactrocera dorsalis (Hendel). Females of this species are known to mate preferentially with males that previously ingested methyl eugenol (ME), a plant-borne compound whose metabolites are used in the synthesis of the male sex pheromone. Females were mated initially (with males denied ME), held isolated from males with access to oviposition substrate, and then offered ME-fed or non-ME-fed males at 1, 2, 3, or 6 weeks after the initial mating. Contrary to the Mediterranean fruit fly, there was no effect of male attractiveness (i.e., ME feeding status) on the re-mating tendency of B. dorsalis females. Also, time elapsed since the initial mating had no effect on the probability of female re-mating. When offered a choice of males, however, non-virgin females, like virgins, displayed a significant preference for ME-fed over non-ME-fed males.

Several non-mutually exclusive hypotheses have been proposed for the widespread occurrence of polyandry in insects (Ridley 1988; Simmons 2001). Females may remate to (i) replace depleted sperm stores (sperm replenishment), (ii) acquire male-controlled resources (material benefits), (iii) replace sperm from a previous mate with sperm from a genetically superior partner (genetic benefits), (iv) minimize male harassment (convenience), or because (v) the propensity for female re-mating is a genetically correlated response to sexual selection on multiple mating by males (correlated evolution). Empirical support exists for all these hypotheses, with the possible exception of the final one involving the genetic link between multiple mating in the sexes (Simmons 2001).

Polyandry has been reported for various species of tephritid fruit flies, including representatives from the following genera: Ceratitis (Bonizzoni et al. 2002; Vera et al. 2003), Bactrocera (Tzanakakis et al. 1968; Ito & Yamagishi 1989; Song et al. 2007), Anastrepha (Sivinski & Heath 1988), Toxotrypana (Landolt 1994), and Rhagoletis (Opp & Prokopy 2000). Although widespread within the family, little work has been directed toward identifying the factor(s) promoting polyandry, and most of this has concerned only two species, the Mediterranean fruit fly (medfly), C. capitata (Wiedemann), and the Queensland fruit fly, B. tryoni (Froggatt). In the medfly, sperm replenishment and male accessory gland fluids both appear to influence female re-mating (Katiyar & Ramirez 1970; Nakagawa et al. 1971; Delrio & Cavalloro 1979; Jang 1995, 2002; Miyatake et al. 1999; Mossinson & Yuval 2003). In contrast, in the Queensland fruit fly, male accessory gland fluids play a major role in inhibiting female re-mating, whereas sperm stores appear to have little influence on female propensity to remate (Harmer et al. 2006; Radhakrishnan & Taylor 2007; see Kuba & Ito 1993 for similar results for the melon fly, B. cucurbitae (Coquillett)).

As evidenced by these studies, research on tephritids has focused exclusively on the effect of sperm supply on female re-mating or the role of male accessory fluids in inhibiting female re-mating. In lek-forming tephritids, including many Ceratitis and Bactrocera species, males do not control resources vital to females (Shelly & Whittier 1997). Consequently, it appears unlikely that females of these species mate multiply to acquire additional material resources. Furthermore, in lekking species, it appears unlikely that females remate to minimize male harassment, since courtship and copulation proceed only after female approach to stationary, signaling males (Shelly & Whittier 1997). Alternatively, the hypothesis that female tephritids remate to obtain sperm from a superior mate (i.e., to ‘trade up’, Halliday 1983) is conceivable but untested.

In a recent study, Shelly et al. (2004b) found that male attractiveness influenced female re-mating in the medfly. Previous work demonstrated that medfly females mate preferentially with males exposed to the aroma of certain plant-derived oils, such as orange oil (Shelly et al. 2004a) and ginger root oil (GRO; Shelly 2001), over non-exposed males. In assessing female re-mating propensity, Shelly et al. (2004b) found that non-virgin females were more likely to mate a second time if offered GRO-exposed males as opposed to non-exposed males. Whether this result indicates genetic trading up is unknown, because the adaptive basis of female preference for GRO-exposed males is unknown. Nonetheless, it does indicate that female re-mating behavior is flexible and may vary with the perceived quality of males available for repeat matings.

The goal of the present study was to determine whether male attractiveness similarly influenced re-mating by females of the oriental fruit fly, B. dorsalis (Hendel). Although field data are lacking, Shelly (2000a) found that B. dorsalis females have a fairly high incidence of re-mating in the laboratory. Over an 8-week period during which males were provided for one twilight (mating) period per week, approximately 50% of the 128 females observed re-mated, with most of these (87%) re-mating only once. Consistent with the aforementioned studies on other Bactrocera species, re-mating by B. dorsalis females was not obviously related to sperm depletion, since (i) the incidence of re-mating was independent of the length of time elapsed since the initial mating and (ii) egg production did not vary significantly before or after re-mating for most females.

Males of the oriental fruit fly are highly attracted to methyl eugenol (ME), a compound found in over 200 families of the plants (Tan & Nishida 1996). Males ingest this compound and use its metabolites to produce a long-range sex pheromone (Nishida et al. 1988). Several studies (Shelly & Dewire 1994; Tan & Nishida 1996) have demonstrated that ME consumption increases male mating success, apparently owing to the increased attractiveness of the male’s pheromonal signal. Thus, as in the medfly, B. dorsalis females preferentially mate with males previously exposed to a particular chemical, thus allowing experimental manipulation of male attractiveness and subsequent evaluation of the effect of such manipulation on female re-mating propensity.

Materials and Methods

Study Insects

All flies used in the present study were from a laboratory colony started with 400-600 adults reared from mangos (Mangifera indica L.) collected in Waimanalo, Oahu. The colony was maintained in a screen cage (l:w:h, 1.2 × 0.6 × 0.6 m) and provided a mixture (3:1, wt:wt) of sugar (sucrose) and enzymatic yeast hydrolysate and water ad libitum and papayas (Carica papaya L.) for oviposition. Infested papayas were held over vermiculite, and the pupae were sifted from vermiculite 16-18 d later. Adults used in the mating trials were separated by sex within 48 h of eclosion, well before reaching sexual maturity at 15-18 d of age (TES, unpublished data), and held in screen-covered, 5-L plastic buckets; 100-125 individuals per bucket) with ample food and water. Flies were held at 24-28°C and 60-90% RH and received natural and artificial light under a 12:12 (L:D) photoperiod. When used in the study, the flies were 3-4 generations removed from the wild.

Female Re-mating

Mating activity in B. dorsalis is restricted to an approximately 1-h long period immediately preceding sunset (Roan et al. 1954; Arakaki et al. 1984). Although males display vigorous wing-fanning (presumably to disperse the sex pheromone, Schultz & Bousch 1971; Kobayashi et al. 1978), little courtship is evident, and males jump on any approaching female. Mating pairs remain coupled through the night and break apart at sunrise.

To obtain initial matings, we placed approximately 50 males and 50 females (all 18-23 d-old virgins) in plexiglass cages (30 × 30 × 40 cm) in the afternoon (1400-1600 h). On a given day, 5-10 mating cages were established. Room lights were extinguished when flies were placed in the cages, consequently mating occurred under natural light. We removed unmated flies from the cages 3-4 h after sunset (using an aspirator under dim light) and left the mating pairs undisturbed in the cage through the night. The following morning we discarded the males and transferred the mated females to screen cages (30 cm cubes, 50-75 females per cage). Papayas were provided every other day (for 6-8 h) as an oviposition substrate (to mimic field conditions where females likely have multiple egg-laying opportunities) starting 2 d after the initial mating and continuing until the females were tested for re-mating either 1, 2, 3, or 6 weeks after the initial mating. We selected these intervals to monitor re-mating frequency soon after the initial mating (in possible response to low sperm transfer) as well as long after the initial mating (in possible response to sperm depletion through extensive oviposition). Ample food and water were provided and changed regularly.

To measure re-mating, we placed 10 mated females and 10 virgin males (19-29 d old) in plexiglass cages and scored matings in the same manner described above. In any given cage, males either had never been given access to ME or were fed ME the day before testing. To obtain ME-fed males, we applied 100 μL of ME to a cotton wick (held vertically by insertion through a hole in the lid of a plastic cup), which was then placed in a bucket holding 60-70 males. The chemical was introduced between 1000-1200 h and removed 1 h later. Feeding activity was not monitored, but in a previous study (Shelly 1997) over 90% of mature males fed on ME within a 1-h interval. For all combinations of post (initial)-mating interval and male treatment, re-matings were scored in 15 cages over 3-6 different days.

Female Mating Status and Mate Selection

As described below, the frequency of female re-mating varied independently of the ME feeding status of the available males. This finding suggested that, unlike virgin females (Shelly & Dewire 1994; Tan & Nishida 1996), non-virgin females may not discriminate among potential mates based on their ME status, and consequently we conducted a separate experiment to investigate this possibility.

Following the methods presented above, females were mated and held for testing 1 week later. On test days, we placed 1 non-virgin female, 1 ME-fed male, and 1 non-ME-fed male in transparent, 3.7-L plastic bottles 3-4 h before sunset and then scored the identity of mating males 2-4 h after sunset (males were marked 1 d prior to testing by placing a small dot of enamel paint on the thorax of chilled individuals). Following the same protocol, we also tested virgin females for discrimination between ME-fed and non-ME-fed males. On a given test day (n = 10 for mated females and n = 5 for virgin females, respectively), we set up 31-55 bottles with individual non-virgin females (for a total of 443 females tested) and 15-20 bottles with individual virgin females (for a total of 94 females tested).

Statistical Analysis

As neither the raw nor (log) transformed data was normally distributed, we assessed the impact of male ME ‘status’ (fed or non-fed) using Friedman’s test, a nonparametric equivalent of the parametric 2-way analysis of variance (Daniel 1990), and treated time since the initial mating as the blocking variable. The mean numbers of re-matings observed for the different time by male status combinations were used in the analysis. In our analysis, weeks since the initial mating were the blocks, and the ME status of males presented for re-mating were the treatments. Following the Friedman test, we compared female re-mating frequency across time intervals with a Kruskal-Wallis test. In the mate choice experiment, we compared the observed mating frequencies for virgin and non-virgin females to that expected by chance (50% for each male type) using the normal approximation to the binomial. Analyses were performed with SigmaStat Statistical Software (Version 2.0). Means ± 1 SE are presented.


With the effect of the blocking variable (i.e., weeks since initial mating) removed, we found no significant effect of male ME feeding status on female re-mating tendency (χ2 = 0.24, df = 1, P = 0.65, Fig. 1). Using data pooled from both male types for each interval, we also found no significant variation in female re-mating frequency across the different time intervals (H = 4.1, df = 3, P = 0.26). Over all time intervals, the average number of females re-matings ranged only from 2.1-3.2 from a possible maximum of 10 when presented with ME-fed males and from 2.0-2.8 from a possible maximum of 10 when presented with ME-deprived males.

Consistent with previous work, virgin females showed a significant preference for ME-fed males, selecting them in 70% (35/50) of the total matings (Z = 2.61, P < 0.01). Non-virgin females likewise showed a significant preference for ME-fed males: 66% (34/53) of the re-mating females selected ME-fed males (Z = 2.0, P < 0.05). The overall re-mating frequency noted for non-virgins in this experiment (53/443 = 12%) was approximately half that observed in the preceding one (301/1200 = 25%). This difference in mating frequency may have reflected the differing fly densities used in the 2 experiments. Fly density (considering both sexes) was 3.03 flies/1000 cm2 (20 flies/6600 cm2) in the main experiment examining female re-mating propensity but only 1.31 flies/cm2 (2 flies/1530 cm2) in the mate choice test.


Based on the data presented above, the re-mating frequency of B. dorsalis females was independent of the time elapsed since the first mating. This result is consistent with the aforementioned study (Shelly 2000a) that monitored re-mating and egg production for B. dorsalis females at weekly intervals over an 8-week period. As fruits were supplied periodically in both the present and the prior study, it seems likely that the number of eggs laid by individual females increased with the time available for oviposition (i.e., with time elapsed since the initial mating). If this assumption is valid, the time-independent likelihood of re-mating indicates that female receptivity is independent of egg deposition in the oriental fruit fly. This finding differs from those reported for several other tephritid species (Sivinski & Heath 1988; Landolt 1994). For example, working with the Caribbean fruit fly, A. suspensa (Loew), Sivinski and Heath (1988) found that 67% of females provided an oviposition substrate remated within 1 week of their initial mating compared to only 10% of females that were not provided an oviposition substrate. However, consistent with the present study, Chapman et al. (1998) reported no difference in re-mating frequency between normal (egg-laying) and irradiated (non-egg-laying) females of C. capitata. These differing results indicate that oviposition has a variable effect on female re-mating among tephritid species.

The data presented above also reveal that female re-mating was independent of the ME-mediated attractiveness of the males available for a second mating. This result was unexpected in light of (i) the earlier study on the Mediterranean fruit fly (Shelly et al. 2004b) showing that GRO-exposed males induced a higher level of female re-mating than non-exposed males, (ii) the repeated demonstration (Shelly & Dewire 1994; Shelly & Nishida 2004; Shelly et al. 2005, 2007) of the strong preference of virgin B. dorsalis females for ME-fed over ME-deprived males and (iii) the common observation from various taxa, including crickets (Bateman et al. 2001), spiders (Watson 1991), pseudoscorpions (Zeh & Zeh 2007), newts (Gabor & Halliday 1997), and guppies (Pitcher et al. 2003), that once-mated females display greater, not weaker, mate selectivity than virgin females.

Although methyl eugenol feeding had no effect on female re-mating frequency in no-choice tests, non-virgin females given a choice between ME-fed and ME-deprived males displayed a significant preference for ME-fed individuals. Taken together, these two findings indicate that, after a certain refractory period, a certain (time-independent) proportion of mated females are sexually receptive and, male type (with respect to methyl eugenol feeding) will not alter this proportion. However, when given a choice of male type, those females that are sexually receptive will generally select ME-fed males over ME-deprived males. While virgin and non-virgin B. dorsalis females show congruence in mate choice, the adaptive benefit of selecting ME-fed males remains unknown. As noted previously (Shelly 2000b), females do not appear to gain direct benefits (i.e., increased fecundity or longevity) by selecting ME-fed mates, raising the possibility that, by selecting ME-fed males, females may increase the probability of producing ‘sexy sons’, capable of locating ME and gaining copulations.


We thank Boaz Yuval and an anonymous reviewer for helpful comments on an earlier draft.

References Cited


N. Arakaki, H. Kuba, and H. Soemori . 1984. Mating behavior of the oriental fruit fly, Dacus dorsalis Hendel (Diptera: Tephritidae). Appl. Entomol. Zool 19:42–51. Google Scholar


P. W. Bateman, L. N. Gilson, and J. W H. Ferguson . 2001. Male size and sequential mate preference in the cricket Gryllus bimaculatus. Anim. Behav 61:631–637. Google Scholar


M. Bonizzoni, B. I. Katsoyannos, R. Marguerie, C. R. Guglielmino, G. Gasperi, A. Malacrida, and T. Chapman . 2002. Microsatellite analysis reveals remating by wild Mediterranean fruit fly females. Mol. Ecol 11:1915–1921. Google Scholar


T. Chapman, T. Miyatake, H. K. Smith, and L. Partridge . 1988. Interactions of mating, egg production and death rates in females of the Mediterranean fruit fly, Ceratitis capitata. Proc. Roy. Soc. London (B) 265:1879–1894. Google Scholar


W. W. Daniel 1990. Applied Nonparametric Statistics. 2nd ed. PWS-Kent, Boston. Google Scholar


G. Delrio and R. Cavalloro . 1979. Influenza della’accoppamiento sulla receptivita sessuale e sull’ovideposizione in femine di Ceratitis capitata Wiedemann. Entomologica 15:127–143. Google Scholar


C. R. Gabor and T. R. Halliday . 1997. Sequential mate choice by multiply mating smooth newts: females become more choosy. Behav. Ecol 8:162–166. Google Scholar


T. R. Halliday 1983. The study of mate choice. pp. 3-32 In P. Bateson [ed.], Mate Choice. Cambridge University Press, Cambridge UK. Google Scholar


A. M T. Harmer, P. Radhakrishnan, and P. W. Taylor . 2006. Re-mating inhibition in female Queensland fruit flies: effects and correlated of sperm storage. J. Insect Physiol 52:179–186. Google Scholar


Y. Ito and M. Yamagishi . 1989. Sperm competition in the melon fly, Dacus cucurbitae (Diptera: Tephritidae): effects of sequential matings with normal and virgin or non-virgin sterile males. Appl. Entomol. Zool 24:466–477. Google Scholar


E. B. Jang 1995. Effects of mating and accessory gland injections on olfactory-mediated behavior in the female Mediterranean fruit fly, Ceratitis capitata. J. Insect Physiol 41:705–710. Google Scholar


E. B. Jang 2002. Physiology of mating behavior in Mediterranean fruit fly (Diptera: Tephritidae): chemoreception and male accessory gland fluids in female post-mating behavior. Florida Entomol 85:89–93. Google Scholar


K. P. Katiyar and E. R. Ramirez . 1970. Mating frequency and fertility of Mediterranean fruit fly females alternately mated with normal and irradiated males. J. Econ. Entomol 63:1247–1250. Google Scholar


R. M. Kobayashi, K. Ohinata, D. L. Chambers, and M. S. Fujimoto . 1978. Sex pheromones of the oriental fruit fly and the melon fly: mating behavior, bioassay method, and attraction of females by live males and by suspected pheromone glands of males. Environ. Entomol 7:107–112. Google Scholar


H. Kuba and Y. Ito . 1993. Remating inhibition in the melon fly, Bactrocera (=Dacus) cucurbitae (Diptera: Tephritidae): copulation with spermless males inhibits female re-mating. J. Ethol 11:23–28. Google Scholar


P. J. Landolt 1994. Mating frequency of the papaya fruit fly (Diptera: Tephritidae) with and without host fruit. Florida Entomol 77:305–312. Google Scholar


T. Miyatake, T. Chapman, and L. Partridge . 1999. Mating-induced inhibition of remating in female Mediterranean fruit flies Ceratitis capitata. J. Insect Physiol 45:1021–1028. Google Scholar


S. Mossinson and B. Yuval . 2003. Regulation of sexual receptivity of female Mediterranean fruit flies: old hypotheses revisited and a new synthesis proposed. J. Insect Physiol 49:561–567. Google Scholar


S. Nakagawa, G. J. Farias, D. Suda, R. T. Cunningham, and D. L. Chambers . 1971. Reproduction of the Mediterranean fruit fly: frequency of mating in the laboratory. Ann. Entomol. Soc. America 64:949–950. Google Scholar


R. Nishida, K. H. Tan, M. Serit, N. L. Lajis, A. M. Sukari, S. Takahashi, and H. Fukami . 1988. Accumulation of phenylpropanoids in the rectal glands of males of the Oriental fruit fly, Dacus dorsalis. Experientia 44:534–536. Google Scholar


S. B. Opp and R. J. Prokopy . 2000. Multiple mating and reproductive success of male and female apple maggot flies, Rhagoletis pomonella (Diptera: Tephritidae). J. Insect Behav 13:901–914. Google Scholar


T. E. Pitcher, B. D. Neff, F. H. Rodd, and L. Roew . 2003. Multiple mating and sequential mate choice in guppies: females trade up. Proc. Roy. Soc. London (B) 270:1623–1629. Google Scholar


P. Radhakrishnan and P. W. Taylor . 2007. Seminal fluids mediate sexual inhibition and short copula duration in mated female Queensland fruit flies. J. Insect Physiol 53:741–745. Google Scholar


M. Ridley 1988. Mating frequency and fecundity in insects. Biol. Rev 63:509–549. Google Scholar


C. C. Roan, N. E. Flitters, and C. J. Davis . 1954. Light intensity and temperature as factors limiting the mating of the oriental fruit fly. Ann. Entomol. Soc. America 47:593–594. Google Scholar


G. A. Schultz and G. M. Bousch . 1971. Suspected sex pheromone glands in three economically important species of. DacusJ. Econ Entomol 25:109–114. Google Scholar


T. E. Shelly 1997. Selection for non-responsiveness to methyl eugenol in male oriental fruit flies, Bactrocera dorsalis (Diptera: Tephritidae). Florida Entomol 80:248–253. Google Scholar


T. E. Shelly 2000a. Fecundity of female oriental fruit flies (Diptera: Tephritidae): effects of methyl eugenol-fed and multiple mates. Ann. Entomol. Soc. America 93:559–564. Google Scholar


T. E. Shelly 2000b. Flower-feeding affects mating performance in male oriental fruit fly Bactrocera dorsalis. Ecol. Entomol 25:109–114. Google Scholar


T. E. Shelly 2001. Exposure to α-copaene and α-copaene-containing oils enhances mating success of male Mediterranean fruit flies (Diptera: Tephritidae). Ann. Entomol. Soc. America 94:497–502. Google Scholar


T. E. Shelly and A. M. Dewire . 1994. Chemically mediated mating success in male Oriental fruit flies (Diptera: Tephritidae). Ann. Entomol. Soc. America 87:375–382. Google Scholar


T. E. Shelly and T. S. Whittier . 1997. Lek behaviour of insects. pp. 273-293 In J. C. Choe and B. J. Crespi [eds.], The Evolution of Mating Systems in Insects and Arachnids. Cambridge University Press, Cambridge, UK. Google Scholar


T. E. Shelly and R. Nishida . 2004. Larval and adult feeding on methyl eugenol and the mating success of male oriental fruit flies, Bactrocera dorsalis. Entomol. Exp. Appl 112:155–158. Google Scholar


T. E. Shelly, C. Dang, and S. Kennelly . 2004a. Exposure to orange (Citrus sinensis L.) trees, fruits, and oil enhances mating success of male Mediterranean fruit flies (Ceratitis capitata [Wiedemann]). J. Insect Behav 17:303–315. Google Scholar


T. E. Shelly, J. Edu, and E. Pahio . 2004b. Sterile males of the Mediterranean fruit fly exposed to ginger root oil induce female remating: implications for the sterile insect technique (Diptera: Tephritidae). Florida Entomol 87:628–629. Google Scholar


T. E. Shelly, J. Edu, and E. Pahio . 2005. Influence of diet and methyl eugenol on the mating success of males of the oriental fruit fly, Bactrocera dorsalis (Diptera: Tephritidae). Florida Entomol 88:307–313. Google Scholar


T. E. Shelly, J. Edu, and E. Pahio . 2007. Condition-dependent mating success in male fruit flies: ingestion of a pheromone precursor compensates for a low-quality diet. J. Insect Behav 20:347–365. Google Scholar


L. W. Simmons 2001. Sperm Competition. Princeton University Press, Princeton, NJ. Google Scholar


J. Sivinski and R. R. Heath . 1988. Effects of oviposition on remating, response to pheromones and longevity in the female Caribbean fruit fly, Anastrepha suspensa (Diptera: Tephritidae). Ann. Entomol. Soc. America 81:1021–1024. Google Scholar


S. D. Song, R. A I. Drew, and J. M. Hughes . 2007. Multiple paternity in a natural population of a wild tobacco fly, Bactrocera cacuminata (Diptera: Tephritidae), assessed by microsatellite DNA markers. Mol. Ecol 16:2353–2361. Google Scholar


K. H. Tan and R. Nishida . 1996. Sex pheromone and mating competition after methyl eugenol consumption in the Bactrocera dorsalis complex. pp. 147-153 In B. A. McPheron and G. J. Steck [eds.], Fruit Fly Pests: A World Assessment of Their Biology and Management. St. Lucie Press, Delray Beach, FL.  Google Scholar


M. E. Tzanakakis, J. A. Tsitsipis, and A. P. Economopoulos . 1968. Frequency of mating in females of the olive fruit fly under laboratory conditions. J. Econ. Entomol 61:1309–1312. Google Scholar


Field Working Group 2003. Remating of wild Ceratitis capitata (Diptera: Tephritidae) females in field cages. Ann. Entomol. Soc. America 96:563–570. Google Scholar


P. J. Watson 1991. Multiple paternity as genetic bet-hedging in female sierra-dome spiders, Linyphia litigiosa (Linyphilidae). Anim. Behav 41:343–360. Google Scholar


J. A. Zeh and D. W. Zeh . 2007. Mate choice by non-virgin females contributes to reproductive isolation between populations of the harlequin beetle-riding pseudoscorpion. Ethology 113:1202–1211. Google Scholar


Fig. 1.

Re-matings by B. dorsalis females presented with treated (ME-fed) or control (ME-deprived) males. Values represent mean numbers (±1 SE, n = 15 in all cases) of re-matings per cage (10 females per cage).

Todd E. Shelly and James Edu "Do Methyl Eugenol-fed Males of the Oriental Fruit Fly (Diptera: Tephritidae) Induce Female Re-mating?," Florida Entomologist 91(3), 388-393, (1 September 2008).[388:DMEMOT]2.0.CO;2
Published: 1 September 2008

Bactrocera dorsalis
mate selection
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