Two new genera, Parypheroides new genus, and Sundarellus new genus, and two new species, Anasa albicans new species, from Argentina, and Sundarellus tiputinus new species, from Ecuador are described. Parypheroides is used to accomodate a species previously included in the binomen Paryphes imperialisStål, 1859. Photographs of the dorsal and ventral habitus, a close up of the head and pronotum, genital capsule and parameres of some species are included.

Male secondary features of the hindleg and abdomen of Dichrorampha caribe Brown, new species distinguish it from the closely related D. manilkaraHeppner, 1981. The new species is recorded from several locations in Florida and from Caye Caulker, Belize. Dichrorampha manilkara is newly reported from the Bahamas.

We diagnose and describe Colonanthes korytkowski new species from Panamá and discuss the placement of the genus in Litini Bruand, 1859 (Gelechiinae). The genus was represented by a single species, Colonanthes plectanopa Meyrick, 1923, described from two male specimens collected at Manaus, Brazil and Yurimaguas, Peru. We include the first female description of a species in the genus and expand the distribution of the genus north by over 1000 km.

We present the first larval host records for the sawflies Sterictiphora sericea (Norton) (Argidae) (Rosaceae: Amelanchier Medik.), Ametastegia aperta (Norton) (Tenthredinidae) (Primulaceae: Lysimachia borealis (Raf.) U. Manns & Anderb.), and Macrophya flavolineata (Norton) (Tenthredinidae) (Asteraceae: Doellingeria umbellata (Mill.) Nees). New records are presented for six other tenthredinids: Quercus rubra L. (Fagaceae) for Caliroa lobata MacGillivray and C. lorata MacGillivray; Populus deltoides Bartr. ex Marshall (Salicaceae) for Fenusella populifoliella (Townsend); Ostrya virginiana (Mill.) K. Koch (Betulaceae) for Nematus corylus Cresson; Quercus ilicifolia Koord. & Valeton ex Seemen for Profenusa lucifex (Ross); and Anemone acutiloba (DC.) G. Lawson and A. americana (DC.) H. Hara (Ranunculaceae) for Pseudodineura parva (Norton). Larvae are described and illustrated for all of the non-leafmining species. The ichneumonid parasitoids Lathrolestes sp. and Erromenus ungulatus Townes & Townes were reared from C. lobata and P. parva, respectively.

Eggs of the assassin bug genus Sinea have an expansion of the chorion called the corolla that gives the eggs a flower-like appearance. In 2016, corollae of S. rileyi Montandon were observed to open and close in the laboratory, prompting a study on the morphology and mechanism of this movement. Eggs of field-collected S. complexa Caudell, S. diadema (F.), S. integra Stål, and S. rileyi were used to complete various portions of this study. Significant differences in the size of the corollae were found among species, with the greatest area for S. diadema, the least for S. complexa, and intermediate for S. riley and S. integra. The volume of the eggs of S. diadema was significantly greater than those of the other three species. The major components of the corollae and adjacent structures are defined and were found to differ among species. Confocal microscopy revealed structural differences in regions of the corollar rim and portions of the operculum. Corollae reacted to water similarly for all species but varied in reaction time. The mechanism of corollae movement is discussed. Results suggest that the reaction of the corolla is a purely physical property of the chorion and that this movement could be a means of water regulation for the developing embryo.

Forty new country records are presented for Camptischium clavipes (Fabricius 1803) [Costa Rica and Peru], Elachisme mundula (Stål 1859) [Paraguay], Machtima mexicanaStål 1870 [Costa Rica], Zoreva ornamentosaBrailovsky and Barrera 1982 [Peru], Chariesterus armatus (Thunberg 1825) [Bolivia and Ecuador], C. cuspidatus Distant 1892 [Trinidad, Colombia and French Guiana], Plapigus circumcinctus Stål 1859 [Belize, Costa Rica and Panama], P. foliaceatus (Blanchard 1843) [Peru], P. patellatus (Stål 1860) [Trinidad], Staluptus marginalis (Burmeister 1835) [Nicaragua and Costa Rica], Paryphes blandusHorvath 1913 [Nicaragua], P. p. pectoralisHorvath 1913 [Ecuador], P. validusHorvath 1913 [Colombia], Sethenira testacea Spinola 1837 [Bolivia], Melucha acutispina Breddin 1903 [Brazil], M. chapadana Brailovsky 1993 [Bolivia and Paraguay], M. lineatella (Fabricius 1803) [Ecuador, Venezuela and Suriname], M. quinquelineata Stål 1865 [Costa Rica, Guyana, Colombia, Venezuela, Peru and Bolivia], Molchina hopei (Perty 1830) [Ecuador], Merocoris elevatus (Spinola 1837) [French Guiana], M. tristis Perty 1830 [Bolivia, Ecuador and Peru], Bactrophya peruvianaBreddin 1901 [Bolivia] and Eudarmistus bicolor Breddin 1903 [Peru]. Distributions are updated and corrected.

This paper provides keys for females and males of the Nearctic Dasymutilla in the USA and Canada. It also provides notes on changes that have taken place since Mickel's (1928, 1936a) keys and Krombein's (1979) catalog of species. One new species, Dasymutilla fasciventroides Manley, Williams and Pitts, new species is described. Fourteen new synonymies are proposed: Dasymutilla arenivaga var. unicolor Mickel, new synonym under D. arenivaga Mickel; Dasymutilla dawsoni Mickel, new synonym under Dasymutilla nigripes (Fabricius); Dasymutilla formicalia Rohwer, new synonym under Dasymutilla erythrina (Say); Dasymutilla hispidaria Mickel new synonym under Dasymutilla calorata Mickel; Dasymutilla perilla perilla Mickel, new synonym and D. perilla gentilicia Mickel, new synonym under D. gorgon (Blake); Dasymutilla phaon fimbrialis Mickel new synonym under D. phaon (Fox); Mutilla Clio (sic) Blake, new synonym under Dasymutilla californica (Radoszkowski); Mutilla clytemnestra Fox, new synonym under Dasymutilla coccineohirta (Blake); Mutilla pacifica Cresson new synonym under Dasymutilla aureola (Cresson); Mutilla (Sphaerophthalma) (sic) Bexar (sic) Blake new synonym and Dasymutilla cassandra Mickel new synonym under Dasymutilla asopus (Cresson); Mutilla (Sphaeropthalma) Comanche (sic) Blake, new synonym under Dasymutilla occidentalis (Linnaeus); and Mutilla (Timulla) nigricauda Viereck, new synonym under Dasymutilla montivagoides (Viereck). Finally, the males of Dasymutilla dammersi Mickel and Dasymutilla flammifera Mickel, and the female of Dasymutilla imperialis Manley and Pitts are associated and described.

Analysis of morphology and sequences of the 658bp barcoding region of COI support four distinct species in the genus Frumenta Busck, 1939, two of which are described new: Frumenta davidi McCarty, new species, and Frumenta dianeae McCarty, new species. Frumenta solanophagaAdamski and Brown, 2002, is a junior synonym of F. nephelomicta (Meyrick, 1930). Frumenta nundinella (Zeller, 1873) and F. nephelomicta are redescribed. Sequence data for F. dianeae were unavailable, but the morphology of this species is distinct. We found three morphological features that may define Frumenta and provide support for the placement of Frumenta within Gnorimoschemini Povolný, 1964, including a culcitula revealed by scanning electron micrographs. Images of adult habitus and male and female genitalia are provided as well as a map showing species distributions and a key to the species.

Of the 97 described species in the New World genus Ambrysus Stål, the nymphal instars of only one North American species have been described. This work represents the first contribution where the immature instars of a Mexican endemic species are characterized and illustrated, Ambrysus inflatus La Rivers. The descriptions are based on specimens collected in Lago de Chapala, Michoacán, in central Mexico. The main characters to distinguish among instars are related to the overall size and relative length of the mesonotal wing pad compared with the exposed part of the metanotal lateral margin. Some characteristics of the immature instars of Ambrysus inflatus and A. lunatus Usinger are briefly discussed. A comprehensive list with references of the species of Naucoridae for which some or all the immature instars have been described is presented.

One of the most important pests that affect the blue agave, Agave tequilana is Scyphophorus acupunctatus Gyllenhal which as larvae bore into and make galleries in the plant and also damage plant tissues as adults. In the present study, the abundance of S. acupunctatus was analyzed in plantations of A. tequilana of ages of 2, 3 and 4 years through monthly samples from May to November of 2016 in nine plantations distributed in the municipalities of Tequila, Magdalena and Arandas in the state of Jalisco, Mexico. In each plantation, nine traps were placed with synthetic aggregation pheromone (2-methyl-4-octanone 950 g/L y 2-methyl-4- octanol 5g/L), placed 50 m apart and arranged as follows: three within the A. tequilana plantings, three on the crop edges, and three in adjacent non-cultivated areas, for a total of 81 traps which were checked monthly. The temperature and humidity of each plantation was registered with dataloggers and the precipitation from data from NASA, as well as historical data of these variables were obtained from 1951 to 2016. A total of 4,390 individuals were trapped, consisting of 3,289 females and 1,101 males. We found significant differences among the weevil abundance in A. tequilana plots of different age and agronomic management. There was less abundance of weevils in plantations where no agrochemicals were used and where natural vegetation was allowed within rows suggesting that natural habitat complexity is an important factor in reducing the abundance of the weevil.

Pristaulacus nilgira Smith and Turrisi, new species, P. singara Smith and Turrisi, new species, and P. luteus Smith and Turrisi, new species are described from southern India. These are the first known species of Pristaulacus from southern India. They are illustrated and compared with other Pristaulacus species known from India, Sri Lanka, and other parts of the Oriental Region.

A new crambid, Eoreuma insuastii Solis and Osorio-Mejia, new species, is described from Colombia. The larvae were discovered feeding on young stalks of sugarcane (Saccharum officinarum L.) grown for brown sugar loaf, or “panela.” We provide images of larvae and pupae, as well as damage to sugarcane young stalks for field identification, and describe and illustrate the adults and their genitalia. Only three species of Eoreuma have been previously described from South America; we provide images of the type specimens, their labels, and genitalia. The new species described herein is most like E. donzella Schaus, which was described from Brazil. The other two species are E. paranella Schaus and E. morbidellus Dyar; we designate the male syntype of E. morbidellus as the lectotype. The new species is compared to Eoreuma loftini (Dyar), a common pest species of graminaceous crops such as sugarcane and rice (Oryza sativa L.) in Mexico and the United States.

We examine five Tischeriidae species from the collection of the National Museum of Natural History (USNM), Washington, D.C. We discovered among the holdings and describe two new species from Arizona, U.S.A: Astrotischeria bucera Remeikis and Stonis, new species and Astrotischeria tucsonica Remeikis and Stonis, new species. Host plants of both species are unknown. All specimens available for the study were collected at light by R. S. Wielgus in 1990. The new taxa are illustrated with photographs of the adults and their genitalia. Additionally, we provide the first photographic documentation of Astrotischeria omissa (Braun, 1927) (feeding on Althaea L., Malvaceae), A. heliopsisella (Chambers, 1875) (feeding on Ambrosia L. and Heliopsis Pers., Asteraceae), and C. confusa (Braun, 1972) (feeding on Fragaria L., Rosaceae). Another Fragaria-feeding tischeriid species, Tischeria inexpectataBraun, 1972, is synonymized with Coptotriche confusa. We briefly discuss the Malvaceae-feeding Astrotischeria Puplesis and Diškus, and discovery of a modified, hitherto undocumented ovipositor of A. bucera and A. omissa, a novel character for the family Tischeriidae.