XXI. CRABRO. 125 
21. uyauinus. Scape of the antenna laterally fulvescent, mandibles black, 
knees only of the four posterior tibia yellow. 
tt The peristethium furnished with a minute tooth 
XII. on each side. 
23. SPINIPECTUS. 
XI. tt Transversely. 
22, TRANSVERSALIS. 
2. Stemmata describing a curve. 
XIV. a. Abdomen marked with yellow. 
9, xyLurcus. Head quadrate; anterior portion of the dorsolum punctured, 
posterior portion and scutellum longitudinally striated ; 
metathorax rugose ¢ 9 ;antenne ¢ with 3—6 joints 
emarginate beneath. 
10. Linpenrus. Head quadrate ; anterior portion of dorsolum transversely, 
and posterior portion, scutellum, and base of meta- 
thorax, longitudinally striated ¢ 9; antenne ¢ 
simple. 
11, vacus. Head quadrate; dorsolum and scutellum punctured ¢ 9 ; 
antenne ¢ with the fifth and sixth joints emarginate 
beneath. 
XV. b. Abdomen entirely black. 
30. atprtanris. Abdomen ovate, with an eneous tinge ; base of metathorax 
longitudinally striated, head narrower than thorax. 
31. Panzert. Abdomen ovate, with an eneous tinge; base of metathorax 
longitudinally striated, head wider than thorax. 
33. srevis. Abdomen ovato-conical ; cordiform base of metathorax smooth 
and shining. 
B. Abdomen distinctly petiolated and the first segment terminating 
XVI. in a node. 
34, Trptatis, Abdomen entirely black ; apex of posterior tibia red. 
35. RUFIVENTRIs. Abdomen more or less red ; apex of posterior tibie black. 
