The ant genus Pseudolasius in the Afrotropical region is reviewed. Two species are considered valid, P. bufonus and P. weissi, and diagnostic morphological characters are provided for each. Scanning electron micrographs are provided for each species, and the male genitalia of P. bufonus are illustrated for the first time. Four species are synomized with P. weissi: P. bayonii new synonym, P. bucculentus new synonym, P. gowdeyi new synonym, and P. weissi sordidus new synonym.

The species of the genus Drapetis Meigen from China are reviewed, and a key to the species of the genus from China is presented for the first time. The following new species are described and illustrated: D. guangdongensis and D. nanlingensis.

Paradiglotta nunni new genus, new species (type locality Avamoana Split, New Zealand) is described, and habitus and line illustrations are provided for its recognition. The unusual features of this taxon are outlined and its tribal affinities are discussed. Paradiglotta is the first member of the tribe Diglottini known from New Zealand. The similarities and differences between Paradiglotta and Diglotta Champion are discussed.

Two new species from the Chilean coastal desert, Gyriosomus granulipennis and Gyriosomus multigranulosus (Pimeliinae: Nycteliini), are described and included in the most recent key for the genus. Distributional and habitat records, habitus photographs, and illustrations of the pronotum and prosternum for these two new species are included.

We establish new subjective synonyms for five Drunella species from the Nearctic, east Palearctic, and Oriental regions: Drunella cryptomeria (Imanishi, 1937) [=Ephemerella nM Imanishi, 1940, new synonym; = D. lepnevae (Tshernova, 1949), new synonym; = D. longipes (Tshernova, 1952), new synonym; = D. fusongensis Su and Gui, 1995, new synonym], D. ishiyamana Matsumura, 1931 [= E. latipes Tshernova, 1952, new synonym], D. lata (Morgan, 1911) [= D. cornuta (Morgan, 1911), new synonym, = E. depressa Ide, 1930, new synonym, = D. cornutella (McDunnough, 1931), new synonym, = D. longicornis (Traver, 1932), new synonym], D. submontana (Brodsky, 1930) [= E. svenhedini Ulmer, 1936, new synonym], and D. walkeri (Eaton, 1884) [= D. wayah (Traver, 1932), new synonym]. Morphology, phenotypic plasticity, and biology are discussed for these species and for D. allegheniensis and D. tuberculata, and new diagnoses are provided. The specific epithet of D. doddsii is corrected to its original orthography.

Ephemerella quadrata, Kluge and Zhou, new species (Ephemeroptera: Ephemerellidae: Ephemerellinae) is described based on larval material from Thailand and Yunnan Province, China. The new species may be differentiated from other Ephemerellinae by its well-developed genae, smooth frons, anterior projections on the pronotum, paired anterolateral mesonotal projections, and dorsal abdominal tubercles.

Torleya larvae are distinguished from other Ephemerellidae by characteristics associated with the legs, gills, and abdominal terga, and male adults are distinguished by genitalia. We recognize eight valid Torleya species from the Palearctic and Oriental Regions. Seven of these eight species are known as larvae and adults; only the adults of T. lutosa Kang and Yang are not known. We include new synonyms for T. major (Klapálek, 1905) (= T. nazarita Alba-Tercedor and Derka, 2003, new synonym) and T. nepalica Allen and Edmunds, 1963 (= T. glareosa Kang and Yang, 1995, new synonym; = Serratella tumiforceps Zhou and Su, 1997, new synonym; = T. arenosa Tong and Dudgeon, 2000, new synonym). Larvae of T. grandipennis Zhou, Su, and Gui are described for the first time and have maxillae with or without minute palps, paired large spines on abdominal terga, and enlarged posterolateral projections on abdominal segments 3–9 or 4–9. The first description of the larva of T. japonica (Gose) is given and shows them to be distinguished by mouthparts and abdominal armature. Torleya naga Jacobus and McCafferty new species, is described from larvae, eggs, and a male adult; it is known from Malaysia, Thailand, and Vietnam. The male adult is distinguished by genitalia, caudal filaments, and abdominal color. Larvae are distinguished by having rows of spatulate setae on the head and numerous setae on the abdominal sterna. Eggs of T. naga are distinguished by having relatively thin reticulations.

A remarkable new cylapine genus and species, Rhyparochromomiris femoratus, is described from specimens taken in canopy-fogging samples in Orellana Province, Ecuador. This new myrmecomorphic taxon is unique in the Miridae in having greatly enlarged forefemora, five-segmented antennae in both sexes, and unusual male genitalia. A description, dorsal and lateral photographs of the adult male and female, antenna, foreleg, and claw, and illustrations of the male genitalia are provided to help distinguish this new mirid from other Cylapinae.

Micronecta minajerwi, new species, from western New Guinea, is described and illustrated. A key to the species of Micronecta Kirkaldy occurring on New Guinea is provided.

Two new species of Stalius are described from Guatemala and Costa Rica. The new species are illustrated and a key provided to separate the members of the genus.

We discuss periodical cicada (Magicicada) Brood VII, which is becoming extinct from much of its historically-reported range in upstate New York. During searches in June of 2001, we found Magicicada adults in only 10 of 37 sites (and two of eight counties) where periodical cicadas had been reported previously, and dense populations were restricted to a small region south of Syracuse and centered on the Onondaga Nation. We suggest possible explanations, including land clearing and climate change, for the decline of this brood and the extinction of other Magicicada broods.

Five new synonyms and ten new combinations are proposed for taxa in Elaphidiini. Brief characterizations of the genera involved (Anelaphus Linsley, Anopliomorpha Linsley, Elaphidion Audinet-Serville, Parelaphidion Skiles, Stizocera Audinet-Serville, Trichophoroides Linsley, Xeranoplium Linsley) are included to provide bases for these taxonomic decisions. The following new combinations are proposed, all transferred from Elaphidion: Anelaphus cinnabarinum (Fisher); Anelaphus crispulum (Fisher); Anelaphus mutatum (Gahan); Anelaphus fasciatum (Fisher); Anelaphus hispaniolae (Fisher); Anopliomorpha antillarum (Fisher); Trichophoroides dozieri (Fisher); Trichophoroides signaticolle (Chevrolat); Trichophoroides variolosum (Fisher); Xeranoplium gracilis (Fisher). The following new synonymies are proposed: Elaphidion truncatipenne Fisher with Anelaphus fasciatum (Fisher); Elaphidion monticola Fisher and Anopliomorpha xylebora Cazier & Lacey with Anopliomorpha antillarum (Fisher); Elaphidion jamaicensis Fisher with Elaphidion tuberculicolle Fisher; Stizocera punctiventris (Cazier & Lacey) with Stizocera insulana (Gahan). A checklist of the 55 species of Elaphidion is provided.

Cryptobates Esaki, 1929 (Gerridae: Heteroptera) is a junior homonym of Cryptobates Fairmaire, 1882 (Tenebrionidae: Coleoptera); Lathriobates nom. nov., is proposed as a replacement name, with type species Gerris raja Distant, 1910. Cryptobatoides J. Polhemus, 1991 (Gerridae: Heteroptera) is a junior homonym of Cryptobatoides Kaszab, 1941 (Tenebrionidae: Coleoptera); Lathriobatoides nom. nov., is proposed as a replacement name, with type species Cryptobatoides brunneus J. Polhemus, 1991. Hydrometra akekawati Sites and J. Polhemus, 2003 is a junior synonym of Hydrometra okinawana Drake, 1951.