The species of the Afrotropical genus Trichiscus are revised. Fourteen species are recognized, two previously described species, T. wittei Benoît and T. suzannae Benoît, and twelve new: T. noorti sp. nov., T. denisi sp. nov., T. briani sp. nov., T. copelandi sp. nov., T. mourei sp. nov., T. lynnae sp. nov., T. normani sp. nov., T. luboi sp. nov., T. zuparkoi sp. nov., T. ohli sp. nov., T. camar...

Five new species of Disepyris Kieffer (Hymenoptera: Bethylidae) are described and illustrated: D. kenyaensis Lim & Azevedo, sp. nov. (Kenya), D. fessus Lim & Azevedo, sp. nov., D. mongoliaensis Lim & Azevedo, sp. nov., D. prolatatus Lim & Azevedo, sp. nov. (Mongolia), D. niveus Lim & Azevedo, sp. nov. (United Arab Emirates) and the genus is first recorded from Yemen, based on a female of D. gui...

Mesitiinae include 203 species classified in 22 genera and four tribes. In this work we proposed a new genus. Moczariella centenaria Barbosa & Azevedo gen. et sp. nov. are described from United Arab Emirates. The main diagnostic characteristics is body wholly unfoveolate, clypeus without lateral lobes, post-occipital depression present, propodeum with discal carinae incomplete, and without post...

Caloapenesia Terayama is characterized by having the costal cell very long, the stigma of forewing absent, and the paramere deeply divided into two arms. Three species of this genus were known from Oriental Region. Sixteen new species from Indonesia, Thailand and Vietnam: C. ana sp. nov., C. arbeni sp. nov., C. diba sp. nov., C. edas sp. nov., C. heira sp. nov., C. inyara sp. nov., C. jailuna s...

The Thai Dissomphalus classification is reviewed, and 29 species are recognized. Previously described species, D. browni Terayama, D. chiangmaiensis Terayama, and D. thaianus Terayama had their known distribution and taxonomic variations broadened. Dissomphalus wusheanus Terayama is newly recorded from Thailand. Twenty-four new species, D. epitus Mugrabi & Azevedo, sp. nov., D. verus Mugrabi & ...

Two new species of the genus Goniozus viz., Goniozus inauditus Santhosh sp. nov. and G. kuriani Santhosh sp. nov. associated with insect induced plant galls from South India are described. The parasitic relationship of Goniozus with the nonlepidopteran hosts living in the concealed habitats and their association with insect induced plant galls and its inhabitants are reviewed.  The possible hos...

Guarding behavior is an important activity in sub-social insects, and this behavior is believed to improve the survival of offspring. Sclerodermus harmandi (Hymenoptera: Bethylidae) is one of most powerful epizoic parasitoid wasps, and it parasitizes Monochamus alternatus, a borer of wood and also the primary vector of the pinewood nematode Bursaphelenchus xylophilus. After laying eggs, S. harm...