New Parasitic Hymenoptera From The Oriental Islands.

Taxonomic revision of the genus Loboscelidia Westwood, 1874 (Hymenoptera: Chrysididae: Loboscelidiinae) from Vietnam

“…Loboscelidia glabra sp. nov. resembles L. antennata Fouts, 1922 andL. hei Yao, Liu &Xu, 2010; however, L. glabra sp.…”

“…Loboscelidia vang sp. nov. resembles L. collaris Fouts, 1922 in having the following characteristics: yellowish brown body color; basal part of cervical expansion strongly constricted in dorsal view; and carinated dorso-lateral surface of pronotum. However, it can be distinguished by the following characteristics: rectangular frontal projection (triangular in L. collaris); scape more than 3.5 times as long as wide (less than 3.0 times as long as wide in L. collaris); F1 and F2 less than twice as long as wide (more than twice as long as wide in L. collaris); temple longer than MOD (shorter than MOD in L. collaris); and straight M vein (curved in L. collaris).…”

“…Loboscelidia fulgens shares a completely lacking M vein with L. bakeri Fouts, 1922, L. guangxiensis Xu, Weng & He, 2006 and L. reducta. However, L. fulgens can be distinguished from the three species by the following characteristics: head wider than posterior width of pronotum (narrower than posterior width of pronotum in L. bakeri and L. reducta); R1 0.30 times as long as R (more than 0.50 times as long as R in L. guangxiensis); a flange on hindtibia more than 0.50 times as wide as tubular part of hindtibia (less wide than hindtibia in L. guangxiensis); well-developed tibial flanges (lacking in L. reducta); and propodeum without a transverse carina (with the carina in L. bakeri).…”

“…The biology of the genus is poorly known; however, some studies have suggested that they are egg parasitoids of stick insects (Phasmida), such as the Amiseginae Mocsáry, 1890 subfamily (Hadlington & Hoschke 1959;Heather 1965). Many studies have considered that their strange morphology implies their myrmecophily (Fouts 1922;Riek 1970;Krombein 1983). The discovery of Rhadinoscelidia lixa Hisasue & Mita, 2020 at the nest entrance of an ant species, Carebara diversa (Jerdon, 1851) (Hymenoptera: Formicidae), supports this idea (Hisasue & Mita 2020).…”