One species of Silvanidae, Silvanus muticus Sharp, is newly recorded from New Brunswick, Canada and the Maritime provinces; Ahasverus longulus (Blatchley) is re-instated to the faunal list of the province, and we report the first recent provincial records of Dendrophagus cygnaei Mannerheim. Five species of Laemophloeidae (Charaphloeus convexulus (LeConte), Charaphloeus undescribed species (near...

Japanese species of the genus Psammoecus Latreille, 1829 are taxonomically revised. Four new species, P. scitus sp. n. (misidentified with P. quadrimaculatus), P. labyrinthicus sp. n., P. boreas sp. n. and P. omotoensis sp. n. are described. Psammoecus bipunctatus (Fabricius, 1792), P. trimaculatus Motschulsky, 1858 (misidentified with P. triguttatus), P. simoni Grouvelle, 1892, P. fasciatus Re...

The last instar larva and the pupa of Psammoecus scitus Yoshida & Hirowatari, all instar larvae of P. simoni Grouvelle, and the last instar larva of P. hiranoi Yoshida & Hirowatari are described, and their morphologies are compared among species and instars. Larval association for P. simoni was confirmed by DNA barcoding. Apart from a brief description of the pupa of Cryptamorpha brevicornis (W...

We tested the hypothesis that the entomopathogenic fungus Beauveria bassiana would be more efficacious on oat cultivars that prolonged the immature developmental period of sawtoothed grain beetle, Oryzaephilus surinamensis (L.), a storage pest. However, percentage of reduction in progeny production was similar on whole 'Don' and 'Paul' oats treated with fungus, even though immature developmenta...

Studying the effects of predation in cryptic herbivorous insects is difficult because many spend all or most their life cycle inside host plant. Here, we designed and 3D-printed artificial coffee berries to study berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae), by flat bark beetle, Cathartus quadricollis (Guerin-Meneville) Silvanidae). The were tested under la...

Microbial symbionts of insects provide a range of ecological traits to their hosts that are beneficial in the context of biotic interactions. However, little is known about insect symbiont-mediated adaptation to the abiotic environment, for example, temperature and humidity. Here, we report on an ancient clade of intracellular, bacteriome-located Bacteroidetes symbionts that are associated with...