Cenopis croatanensis Brown and Sullivan, new species, is described and illustrated from North Carolina, Louisiana, and Texas, U.S.A. The new species is assigned convincingly to Cenopis on the basis of two features of the male: a highly modified hood of scales over the upper frons on the head and a fold in the anal region of the hindwing concealing a slender hairpencil. Males are easily distinguished from all congeners by features of the genitalia, in particular the short, broadly rounded sacculus with a free subapical process.

Phytosciara greylockensis, new species (Sciaridae), is described from Mt. Greylock in western Massachusetts, USA. Larvae are initially leafminers on Clintonia borealis (Aiton) Raf. (Liliaceae), later feeding on leaves externally. DNA barcodes of the new and most other Phytosciara species are presented.

The plant bug genus Semium Reuter, previously containing six species, is reviewed and the new Mexican species Semium albocuneatum from Puebla and S. cervantesi from Guerrero, and S. texanum from western Texas are described. Previously known species are diagnosed and redescribed, a color dorsal illustration of S. albocuneatum, color dorsal images of all species, selected SEM images of S. hirtum, and illustrations of male genitalia are provided, and a revised key to the nine species of the genus is given.

The New World lace bugs (Tingidae) Acalypta emarginata, n. sp., from Guatemala, and Cervantestingis galeata, n. gen. and n. sp., from Veracruz, Mexico, are diagnosed, described, and illustrated. The discovery of Acalypta emarginata in Central America represents one of the southern-most hemisphere records for a species of this largely temperate, moss-feeding genus of Tingidae. The relationship of C. galeata with species of Acalypta are discussed.

A heleomyzid fly Tephrochlamys rufiventris (Meigen, 1830), was reared from a form of blue cheese aging in a refrigerated, dark, aging room of a small northern California creamery. The third-instar larva is redescribed and the puparium is described for the first time.

Species of Braconidae from Mount Desert Island and the Schoodic Peninsula area of Acadia National Park (ANP) in Maine are reported based on identification of specimens from a bioblitz conducted at ANP in 2015 in combination with records reported previously. The bioblitz yielded 400 specimens of Braconidae representing 104 species in 46 genera. A list of 175 braconid species is provided. The following species are reported from Maine for the first time: Adelius (Adelius) coloradensis Muesebeck, Alysia (Alysia) lucia Haliday, Aphaereta genevensis Fischer, Chorebus (Chorebus) harringtoni (Ashmead), Ephedrus (Ephedrus) lacertosus (Haliday), Doryctes (Doryctes) macrocaudus Marsh, Leiophron (Euphoriella) incerta (Ashmead), Meteorus politus (Provancher), and Aleiodes (Aleiodes) parasiticus Norton. A new species of Rogadinae (Hymenoptera: Braconidae), Clinocentrus choiradogaster King, Shimbori, and Kula, is described from the Nearctic Region. DNA sequence data for the 28S rDNA expansion region D2, a 618-bp fragment of the barcoding region of cytochrome c oxidase subunit I (COI), and a fragment of cytochrome c oxidase subunit II (COII) are reported for the new species. Diagnostic morphological features for Clinocentrus Haliday and Aleiodes Wesmael (Braconidae: Rogadinae) are discussed given morphological attributes of the new species.

The genus Magnitarsijanus Wei is reviewed. A diagnosis of the genus and the differences between Magnitarsijanus and Janus Stephens are discussed. Magnitarsijanus sinicus, sp. nov., is described from China. Magnitarsijanus kashivorus (Yano and Sato, 1928) is redescribed, removed from the faunal list of China, and recorded for the first time from South Korea.

A miniature example of the cicada Zammara calochroma Walker, 1858 was found among undetermined material from Costa Rica. The specimen has a body length of 81.20% of the average determined for the species. Other morphological variables range from 51.88%-86.36% of average size and all structures are outside the 95% Confidence Interval Estimate for the species suggesting the miniature specimen is different from the population as a whole. The specimen was collected in the wild and is a naturally occurring miniature of an adult and appears to be the first analysis of a miniature cicada.

Leptocimbex flavus Smith, n. sp., is described from Laos. Both sexes are described, illustrated and separated from other species of the genus. The almost uniformly orange-yellow color of the body and wings and male genitalia characters are especially diagnostic for the species.

Two new species of aquatic acentropines, Petrophila anna, new species, and Petrophila cornvillia, new species, are described and illustrated from northcentral Arizona, U.S.A. Both species were initially found in Oak Creek which traverses both Coconino and Yavapai counties, but were observed most frequently at and below Red Rock Crossing in Coconino County where the creek flows southwest to the Verde River. Observations regarding adult flight period, a unique cocoon texture created by sand, and larval mandible morphology are summarized. A table comparing the genitalic differences between the two new species and three externally similar species of Petrophila is provided.

Three similar treehopper taxa in the genus Telamona—T. salvini Distant, T. subfalcata Van Duzee, and T. stephani Wallace new species, are described and illustrated based on morphological features and geographic distributions. All three species have an acute dorsoposterior area of the pronotal projection and were historically identified in collections as Telamona salvini Distant. Telamona subfalcata Van Duzee, formerly a junior synonym of T. salvini, is reinstated from synonymy. A lectotype is also designated for T. subfalcata. Telamona stephani is the first telamonine species described from the United States in 50 years. As a result of this paper, the genus Telamona now contains 30 valid species.

Despite a relatively recent taxonomic revision, North American weevils of the economically important genus Curculio remain poorly characterized and difficult to distinguish. Given herein is an illustrated key to the 15 species found east of the Mississippi River, including the putatively extinct C. caryatrypes (Boheman) or greater chestnut weevil. This is necessarily a complex key using multiple characteristics, designed to minimize or eliminate difficulties in identification posed by extremes in structural variation in both males and females. Curculio ordinatus (Casey) is transferred from synonymy with C. nasicus (Say) to synonymy with C. strictus (Casey), new synonymy.