(Page 49) 



21. Elytra at least as long as pronoturc: 7. sub^. Semosoma Thorns, i ... 22. 

 Elytra noticeably or distinctly shorter than pronotum: 8. subg. Besso - 



pora Th om s 26 . 



22. Abdominal side-margins peculiarly thick, hind corners of pronotum 



obtuse-angular. L. 2.5-3 mm 21. 0. testacea Sr. 



Abdominal side-margins not peculiarly thick, hind corners of pronotum 



rounded off 23. 



(Page 49) 



23. Abdomen anteriorly not with dense, end toward tip scattered punctation, 



body yellow or brownish-yellow, the head and a htMH. before abdom- 

 inal tip dark. L. 2-"?. 5 mm 22. 0. re'-iondita Kr. 



Abdomen anteriorly very densely, toward tip somewhat less densely 



punctated 24. 



24. Pronotum twice as broad as long. L. 2.5 mm 23. 0. f ormice ticola Mark. 



Pronotum at most 1^ times as broad as long 25. 



25. Antennae pitch-black vyith reddish-yellow base, rather robust, their 



next-last Joints about twice as broad as long. L. 2-2.5 mm 



24. 0. haemorrhoa I/annh. 



Antennae entirely yellowish-red, very robust, their next-last Joints 



three times as broad as long (Fig. 21). L. 2-2.5 mm 



25. 0. amoena Fairm. 



26. Elytra with distinct scabrous punctation. L. 1.5-2 mm 



28. 0. hrachyptera Steph. 



Elytrp with simple punctptlon 27. 



■69- 



