Gerromorpha or semiaquatic bugs have the ability to walk on the surface of the water and occupy a wide variety of habitats. They are relatively well studied in the Neotropical Region, but some species are known only from the type localities or have many gaps in their documented distributions. In this study we examined specimens housed in the National Museum of Natural History, Smithsonian Institution, and report new records for 17 species: Mesovelia bila, Hydrometra argentina, H. caraiba, H. comata, Limnobatodes paradoxus, Euvelia lata, E. mazzucconiae, Husseyella turmalis, Oiovelia cunucunumana, Paravelia conata, Platyvelia brachialis, Steinovelia virgata, Halobatopsis platensis, H. spiniventris, Ovatametra obesa, Limnogonus aduncus aduncus, and L. recurvus.

A new genus, Paradicodia, type species, Paradicodia eminentia, sp. nov. and 22 new species in ten genera and four tribes in the subfamily Coelidiinae from Peru are elucidated. These include the following: Paradicodia eminentia, P. bispiculata, P. lineata, Evansolidia semibulbata, Crassinolanus bulbatus, Dialodia undulata, (Coelidiini); Stalolidia prodignatia, Stalolidia oblongata, Hastalidia retrorsa, Docalidia multipenna, D. acinacea, D. unica, D. lunata, D. ata, D. soulierae, D. rodriguezi, D. trispinata, D. quadrata, D. vansweringeni (Teruliini); Sandersellus flexus (Sandersellini); Youngolidia undulata and Y. bifurcata (Youngolidiini). New records for Peru include the following species: Docalidia dentula (Metcalf), Dicodia germari Nielson, Megalidia elongata Nielson and Boliviela inflata (DeLong).

Only one species of the genus Agathomyia Verrall, Agathomyia shaanxiensis sp. nov., is described as new to science in Shaanxi. The genus Lindneromyia Kessel is newly recorded from Shaanxi with following four species: Lindneromyia brevis sp. nov., L. obtusa Han & Yang, L. taibaishanus sp. nov. and L. zhouzhiensis sp. nov. A key to the species of Lindneromyia from Shaanxi is presented.

Previously only two species of Chrysotus were known to occur in Guangxi of China. Here a revision of the genus from Guangxi is presented. Eight species are herein reported. The following three species are described as new to science: Chrysotus guangxiensis sp. nov., Chrysotus triprojicienus sp. nov. and Chrysotus xiaominae sp. nov. Three species are recorded from Guangxi for the first time: Chrysotus biprojicienus Wei et Zhang, Chrysotus shanxiensis Liu et Yang, and Chrysotus motuoensis Liu et Yang. A key to the species of Chrysotus from Guangxi of China is provided. The relationship of the two genera Dubius and Chrysotus is discuss.

Global interest in biofuels has resulted in the development of novel land-use practices for the production of cellulosic biomass. One novel land-use practice that has recently been developed is intercropping switchgrass (Panicum virgatum) between rows of planted loblolly pines (Pinus taeda). However, our understanding of how intercropping switchgrass influences loblolly pine flora and fauna is limited. Therefore, we evaluated the influence of switchgrass cultivation within loblolly pine stands on invertebrate communities. We detected 2,913 individuals (n = 1,172 and 1,741 in 2014 and 2015, respectively), encompassing 13 orders. To examine invertebrate community composition among treatments, we conducted metric multidimensional scaling (MDS) in R. Multivariate analysis determined that treatment had a significant (Pr(>r) = 0.01) influence on invertebrate communities. Furthermore, stable isotope analysis suggests that Orthopterans are not assimilating cultivated switchgrass (C₄ species), but are instead assimilating C₃ plant species, such as Rubus argutus (sawtooth blackberry). Results indicate that switchgrass intercropping may be a viable land-use practice for the co-production of cellulosic biomass and forest products and the maintenance of invertebrate communities associated with loblolly pine plantations.

Stenchaetothrips gaomiaoensis sp. nov. is described from bamboo in southwestern China. Stenchaetothrips bambusicola Mound 2011, collected from Poaceae grasses, is newly recorded from China. An identification key to the twenty-one species of Stenchaetothrips from China is also provided.

The Thailand species of leafhoppers in the genus Scaphoideus Uhler that are known at this time are discussed. This includes 19 previously described species are reviewed, with descriptions of 42 new species. A key to all 61 species is included, as well as a list of the previously described species, with the distribution of each in Thailand and other countries.

The genus Hilara Meigen is reported from Gansu for the first time with 10 species. The following ten species are described as new to science: Hilara acutiprojecta sp. nov., Hilara apiciacutata sp. nov., Hilara brevicercus sp. nov., Hilara curvicercus sp. nov., Hilara diebuensis sp. nov., Hilara dingae sp. nov., Hilara gansuensis sp. nov., Hilara lazikouensis sp. nov., Hilara quadrisetosa sp. nov., and Hilara zhouae sp. nov. A key to the species of the genus Hilara from Northwest China is presented.

In May 2016, we collected ants at 16 sites in the city of Tangier, Morocco, primarily in urban gardens and parks. We found a total of 38 ant species, including eight non-native tramp species, Cardiocondyla emeryi, Linepithema humile, Nylanderia jaegerskioeldi, Paratrechina longicornis, Pheidole megacephala, Strumigenys membranifera, Tetramorium bicarinatum, and Tetramorium caldarium. These eight plus Monomorium pharaonis represent all non-native ant species known from Morocco. Two of these species are not been previously known from Morocco: N. jaegerskioeldi and P. megacephala. We found N. jaegerskioeldi at five sites, suggesting that this previously unreported species may have an expanding population in Morocco. We found P. megacephala in a single park in Tangier. Competition with native Pheidole species may limit the spread of P. megacephala in Morocco. The only tramp species from the New World known from Morocco is the Argentine ant, L. humile, which we collected at 7 sites. This species, originally from South America, is an important ecological and agricultural pest in areas with Mediterranean-like climates, including not only the Mediterranean region, but also southern California, southern Africa, and southern Australia.

Two new species are added to the genus Armstrongium (dlinza and carolinae). The genera Silvanidium, Silvanidiella, Pondoidium, and Parasilvanidium are treated as subgenera of Eremidium. The nominal subgenus Eremidium (Eremidium) appears to be comprised of five species groups, here called Group A through E. The subgenus E. (Silvanidium) is considered to included only the type species, E. (S.) armstrongi (Brown). Of the three species previously placed under Silvanidium, aculeatum Brown and peninsulare Brown are moved to Silvanidiella and margaretae Brown is moved to a new subgenus Natalium. Pondoidium trilineatum Brown is placed under Eremidium (Pondoidium). The subgenus Eremidium (Eremidium) now includes 21 species, of which two are new. The subgenus Eremidium (Silvanidiella) presently includes 17 species, of which 11 are new. The subgenus Eremidium (Pondoidium) presently includes 10 species, of which 4 are new. The subgenus Eremidium (Parasilvanidium) presently includes one species, previously placed under Parasilvanidium.

A new genus Zulutettix is described to include 4 new species: unicornis, entumeni, hluhluwe, and tarranti.

Eight species of the genus Hybos Meigen are newly reported from Wanglang National Nature Reserve, Sichuan. The following 3 species are described as new to science: Hybos basiseta sp.nov., Hybos jiangi sp.nov. and Hybos nigripedis sp.nov.

The fauna of Iranian Torymidae (Hymenoptera: Chalcidoidea) is summarized in this paper. In total 80 species from 2 subfamilies Megastigminae (10 species within 2 genera), and Toryminae (70 species within 16 genera) are listed as the fauna of Iran. Distribution and host data of species are given.

One species of the genus Agathomyia Verrall, Agathomyia yunnana sp. nov., is described as new to science in Yunnan. The genus Lindneromyia Kessel is newly recorded from Yunnan with the following four species: Lindneromyia argyrogyna de Meijere, 1907, L. clavata sp. nov., L. nuodengana sp. nov., L. wangi sp. nov. and L. yunlongana sp. nov. A key to the species of Lindneromyia from Yunnan is presented.

African weaver ants, Oecophylla longinoda (Latreille, 1802), are conspicuous arboreal ants, well known in the humid tropics of Africa. Weaver ants build large distinctive nest structures in trees by binding together clusters of leaves using a silk-like substance. Although many regard weaver ants as pests due to their bite, local people also use weaver ants for food, medicine, and as biological control agents. Here, I mapped the geographic distribution of O. longinoda based on >500 site records from 34 countries: Angola, Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Congo-Brazzaville, Congo-Kinshasa, Equatorial Guinea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, Liberia, Malawi, Mali, Mozambique, Niger, Nigeria, Rwanda, Sao Tomé and Principe, Senegal, Sierra Leone, South Africa, South Sudan, Tanzania, Togo, Uganda, Zambia, and Zimbabwe. The documented range of O. longinoda is confined almost entirely within areas with Tropical (Group A) climates as defined by the Köppen-Geiger system: rainforest (Af), monsoon (Am), and savanna (Aw). This range map based on site records corrects inaccuracies in earlier published range maps, and allows prediction of areas where O. longinoda might be expected to occur, but it has not yet been reported.

Jassus flavostriata Melichar, listed in the genera Jassus (Evans 1955: 301) and Coelidia (Metcalf (1964: 49), was overlooked in the revision of the tribe Coelidiini (Nielson 1982). The species is relegated herein to the genus Lesinda McKamey, in the tribe Equeefini sensu Theron nec tribe Coelidiini sensu Nielson, with descriptions and illustrations of the male genitalia for the first time. Lesinda Mckamey is a replacement name for Selinda Theron 1986, preoccupied by Selinda Moore 1883. Lesinda bruggeni (Theron) is herein new combination for Selinda bruggeni Theron. A male syntype specimen, Jassus flavostriatus Melichar, is herein designated lectotype.

Tetramorium lanuginosum Mayr, 1870 is reported for the first time from Morocco. This exotic species was captured in a flower pot in the old city of Marrakech, bringing the number of non-native tramp ants reported in Morocco to 10 species. With this record, T. lanuginosum, originally from tropical and subtropical East Asia, is now known from all southern Mediterranean countries.

The dark rover ant, a species native to South American, is documented for the first time in Tennessee. This invasive species was found at one of eleven survey sites, suggesting that it is not yet well established in Tennessee.

The genus Diaphorus from Oriental Mainland China is introduced. The following three species are described as new to science: Diaphorus emeiensis Liu & Yang, sp. nov., Diaphorus suae Liu & Yang, sp. nov. and Diaphorus tenebricoflavus Liu & Yang, sp. nov. A key to the species of Diaphorus from Oriental Mainland China is presented.