The life cycle of Compsobata univitta (Walker, 1849) is described. Larvae are saprophagous, feeding on moist, decomposing vegetation. Data on the habitat, distribution, phenology, behavior, and feeding habits are presented. Morphological features of the egg, three larval instars, and puparium are figured and described.

Forty species of scorpionflies are currently known from Indochina, consisting of 36 Neopanorpa, three Bittacus, and one Bicaubittacus. I describe and illustrate five additional new species from northern and central Vietnam: Neopanorpa angustala n. sp., N. lindsleyi n. sp., N. acetabulifera n. sp., Bittacus tamdaoensis n. sp., and B. bartolozzii n. sp., and discuss their habitats. I provide additional distribution and seasonal data for Indochinese Mecoptera. Moreover, I document the first records of Mecoptera from Cambodia.

Beetles of Family Melandryidae occur under the bark of mature and rotting trees, but have been poorly studied and their life histories have seldom been described. They are thought to feed on rotting wood or fungal hyphae. Recently, adults and larva of Orchesia cultriformis Laliberté were collected while feeding on the basidiocarp tissue of a polypore fungus, Inonotus obliquus (Ach. ex Pers.), and dissected, with their gut contents all found to contain hyphae and spores positively identified to be those of I. obliquus. Inonotus obliquus (“chaga”) is a ubiquitous fungus found in northern latitudes of North America, Europe, and Asia. The species is very well-known and highly prized commercially for purported pharmacological benefits including cancer-fighting properties. Despite its universal recognizability, many questions about the basic biology of this fungus remain, including sexual reproduction and spore dispersal which has rarely been seen. Mycophagous beetles have been hypothesized as having a role. This is the first report of insect mycophagy of I. obliquus in North America, and these findings suggest that O. cultriformis may play a role in spore dispersal of this enigmatic fungus.

Akrostomma gabriella Crossley and Simmons is described as new, and Labidostomma plumosum Greenberg is transferred to the genus Akrostomma, bringing the number of known species in the genus to five. Habitats of the mites are discussed.

Megaselia nantucketensis new species (Phoridae) is described from Nantucket Island, Massachusetts, USA. The single specimen was reared from a leaf gall on black oak (Fagaceae: Quercus velutina Lam.) caused by a species of Macrodiplosis Kieffer (Cecidomyiidae). The larva of this univoltine fly is presumed to be a predator on larvae of the gall midge.

Dryocosmus kunugiphagus Ide and Abe, n. sp. associated with a section Cerris oak, Quercus acutissima Carruth., is described in Japan and Korea. Although section Cerris oaks are the main host plants of Western Palearctic species of Dryocosmus Giraud, hitherto known Eastern Palearctic ones exhibit host specificity with plants of the genus Castanea Mill. and the subgenus Cyclobalanopsis (Oerst.) of the genus Quercus L. Therefore, the present study served as the first record of a Dryocosmus species being associated with section Cerris oaks in the Eastern Palearctic region. The species was previously identified as Spathegaster sp., Andricus inflator Hartig, and Neuroterus boni-henrici Dettmer in Japan; however, examination of adults that emerged from galls resulted in the description of a new Dryocosmus species. Collection and emergence dates indicated the occurrence of a prolonged diapause in the asexual generation of D. kunugiphagus.

Two new species of Macrosiphum Passerini are described from western North America. Macrosiphum clum Jensen, new species lives on Clematis ligusticifolia Nutt. (Ranunculaceae) without host alternation. Macrosiphum schimmelum Jensen, new species lives on Lonicera utahensis S. Watson (Caprifoliaceae) without host alternation. Notes on taxonomy, distribution, and field biology are provided for both species.

Pristaulacus laetus Smith, n. sp., is described from Sonora, Mexico. The female and male are described, illustrated, and separated from the similar P. mexiuni Smith and other Pristaulacus species.

Monophadnoides inornatus Smith, n. sp., is described from eastern United States, and the previously unknown male of M. conspiculatus MacGillivray is described. Comparisons are made of these two species and M. pauper (Provancher), which are similar sympatric species that might be confused. Females and males of the three species are illustrated for comparison and a revised key to males is provided.

The genus Stenocephus is reviewed. A diagnosis of the genus and the differences between Stenocephus and its relatives are discussed and keyed. Stenocephus fraxini Wei, sp. nov., is described from China. Stenocephus oncogaster Shinohara, 1999, from Japan and S. Korea, and S. flavomaculus Wei, 2007, from China are redescribed. A key to known species of Stenocephus is also provided. Stenocephus oncogaster Shinohara is removed from the faunal list of China.

The current paper summarizes the scientific career of Dr. John T. Polhemus, 1929–2013. It begins with a compendium of his extensive field work devoted to the collection of aquatic Heteroptera, cross-referenced to his associated field collection numbers in order to allow future workers to more accurately associate samples and localities. This is followed by a list of his 288 peer-reviewed publications, the taxonomic names proposed within them, comprising 474 species, 54 genera, and 5 tribes, and the holotype repositories for the specieslevel taxa.