5 Trissolcus mopsus, female holotype (B.M. TYPE HYM. 9.309), head, dorsolateral view 6 T. brochymenae, female neotype (USNMENT00954611), head and mesosoma, lateral view 7 T. strabus, female (BMSB 1203), mouthparts, ventral view 8 T. gonopsidis, female (OSUC 542413), mouthparts, ventral view 9 Trissolcus sp. female (USNMENT00872666), mouthparts, ventral view 10 T. japonicus female (USNMENT00896000), mouthparts, ventral view. Scale bars in millimeters. Abbreviations: of, orbital furrow; ms, malar sulcus.