The genus Astaena (Coleoptera: Scarabaeidae: Melolonthinae: Sericini) is reviewed for Central America. The known fauna comprises 34 species, 30 of which are described as new. The new species are diagnosed, critical morphological characters illustrated, and a key to species is presented. The following new species are described: Astaena aliena Lago, n. sp., Astaena alternata Lago, n. sp., Astaena brevisetosa Lago, n. sp., Astaena ciliata Lago, n. sp., Astaena confusa Lago, n. sp., Astaena convexipyga Lago, n. sp., Astaena corrugata Lago, n. sp., Astaena depressa Lago, n. sp., Astaena dichromia Lago, n. sp., Astaena diversisetosa Lago, n. sp., Astaena diversipennis Lago, n. sp., Astaena fortuna Lago, n. sp., Astaena freyi Lago, n. sp., Astaena howdeni Lago, n. sp., Astaena inbio Lago, n. sp., Astaena inflata Lago, n. sp., Astaena maddeni Lago, n. sp., Astaena minuta Lago, n. sp., Astaena moroni Lago, n. sp., Astaena nigrocephala Lago, n. sp., Astaena ocellata Lago, n. sp., Astaena omega Lago, n. sp., Astaena paracorrugata Lago, n. sp., Astaena pseudociliata Lago, n. sp., Astaena ratcliffei Lago, n. sp., Astaena sigma Lago, n. sp., Astaena stockwelli Lago, n. sp., Astaena testacea Lago, n. sp., Astaena vilifrons Lago, n. sp., and Astaena villosa Lago, n. sp. Holotypes of Astaena hiekei Frey, Astaena macilenta Bates, Astaena opalicauda Bates are redescribed. A redescription Astaena pusilla Frey is also presented. The only other Central American genus of Sericini, Symmela, represented by a single species, S. costaricensis Moser, is also diagnosed and illustrated.

Aquatic macroinvertebrate sampling in Nantucket streams produced a fauna typical of northeastern first-order low-gradient intermittent and perennial streams. Most taxa appear to be stream-specific, and as such would be particularly susceptible to stream disturbances. Abundance is low overall, with a few exceptions. Stream chemistry measurements fall within expected ranges for developed areas. Dissolved oxygen level, discharge and flow regime may be limiting factors in most of the streams.

The Cabo Verde Islands, a tropical Atlantic archipelago west of Senegal, West Africa, is the southernmost part of Macaronesia, a biogeographic subregion that also includes the archipelagos of the Azores, Madeira, and the Canary Islands. We surveyed ants at 238 sites on the nine inhabited islands of Cabo Verde, collecting a total of 33 ant species, including 11 previously unreported species. Published, previously unpublished, and new records of ants from Cabo Verde now total 39 species. Only three species, Camponotus occasus, Cardiocondyla n. sp., and Monomorium boltoni, are known Cabo Verde endemics, though three unidentified species may also be endemics. An additional 24 species are apparently native to the Afrotropical and/or Palearctic biogeographic realms. Most are likely to be native to Cabo Verde, including Brachyponera sennaarensis, a widespread and conspicuous ant in sub-Saharan Africa and the Middle East, well known for its painful sting. Nine of the Afrotropical/Palearctic species are well known tramp ants, widely spread around the world through human commerce: Cardiocondyla emeryi, Hypoponera punctatissima, Hypoponera ragusai, Pheidole megacephala, Strumigenys membranifera, Technomyrmex pallipes, Tetramorium caldarium, Tetramorium simillimum, and Trichomyrmex destructor. It is unclear which of these species are native to Cabo Verde and which are exotic. Seven ant species thought to originate in the Indomalay and/or Australasian realms are almost certainly exotic to Cabo Verde: Cardiocondyla obscurior, Monomorium floricola, Paratrechina longicornis, Strumigenys emmae, Syllophopsis sechellensis, Tapinoma melanocephalum, and Tetramorium bicarinatum. Finally, two species, Brachymyrmex cordemoyi and Solenopsis globularia, are the only ants found in Cabo Verde known to be exotic New World species. Records of six previously reported species, Cardiocondyla nigra, Carebara vorax, Lepisiota capensis, Pheidole punctulata, Solenopsis innota, and Technomyrmex albipes, appear to be misidentifications of Cardiocondyla n. sp., Solenopsis orbula, Lepisiota canescens, Pheidole megacephala, Solenopsis globularia, and Technomyrmex pallipes, respectively.

Tramp ants, which are extremely common in Cabo Verde, have probably had a great impact on the endemic and native ants. In fact, M. boltoni may now be extinct, exterminated by P. megacephala, a highly destructive invasive ant species, which was the most commonly collected ant in Cabo Verde. Numerous Cabo Verde residents reported being attacked by another invasive tramp ant, Trichomyrmex destructor. Given the number of species we found two or fewer times (14 of 39 species), we expect that multiple ant species probably remain undetected.

Seventeen new species of Psychomyia from China are described and illustrated, these species are: P. biacicularis Li, Qiu, and Morse, sp. nov.; P. cuspidata Li, Qiu, and Morse, sp. nov.; P. didymos Li, Qiu, and Morse, sp. nov.; P. ensiformis Li, Qiu, and Morse, sp. nov.; P. erecta Li, Qiu, and Morse, sp. nov.; P. hirta Li, Qiu, and Morse, sp. nov.; P. humecta Li, Qiu, and Morse, sp. nov.; P. longa Li, Qiu, and Morse, sp. nov.; P. machengensis Li, Qiu, and Morse, sp. nov.; P. meridionalis Li, Qiu, and Morse, sp. nov.; P. polyacantha Li, Qiu, and Morse, sp. nov.; P. rhombiformis Li, Qiu, and Morse, sp. nov.; P. rivalis Qiu, Morse, and Wiberg-Larsen, sp. nov.; P. trilobata Li, Qiu, and Morse, sp. nov.; P. similis Li, Qiu, and Morse, sp. nov.; P. trotispina Li, Qiu, and Morse, sp. nov.; and P. valida Li, Qiu, and Morse, sp. nov. Psychomyia chompu ; P. flavida ; P. forcipata ; and P. minima () are reported from China for the first time. A phylogeny of genus Psychomyia is analyzed based on 75 morphological characters, and species groups are hypothesized and named.

When reviewing the species of Agapetus Curtis in eastern and central North America, we discovered previously unknown pores and ducts in abdominal segment VIII of the females. Evidence suggests that the pores and ducts are part of caddisfly colleterial glands and have a role in oviposition. Examples are described and illustrated for 26 of the 42 known North American species.