(Page 108) 



18. Antennae black or pitch-brown, scarcely lighter at base. Head peculiar- 



ly small, narrow. L. 2.3-2.5 mm 12. H. subsinuata £ir. 



Antennae rust colored with yellow base. Head rather broad. L. 2 .5-3 



mm 13. H. laticollis Steph. 



19. Antennal third joint distinctly shorter than the second. L. 2 mm 



17. H. orphana Sr. 



Antennal third joint hardly shorter than the second 20. 



20. Antennae entirely reddish-yellow or brownish toward the tip; their first 



joint li times as thick as the second. L. 2-3 mm. : 14. H. fungi Jravh. 



and 14a. v. clientula Kr. 



Antennae pitch-brown or brown, at base not or very little lighter; their 

 first joint twice as thick as the second 21. 



21. Elytra darkly brown. L. 2.5-3 mm 15. H. orbata ir. 



illytra brownish yellow, most often darker around scutellum. L. 2.5-3 



mm ." 16. H. pulchra Kr. 



(Page lOS) 



22. Third joint of antennae decidedly shorter than the second. Pronotal side- 



oristles short or indistinct, (species small: L. 1.5-2 mm., black): 



8. Bubjj. Datomicra Mul s 23. 



Ihird joint of antennae as long as or longer than the second, rarely 



a little shorter than this ( parvula , setigera ). Pronotal side-brist- 

 les long and robust 29. 



23. Pronotum twice as broad as long. Head, pronotum, and elytra with re- 



markable sharp punctation. L. 1.5 mm 18. cribrata Kr. 



Pronotum 1 '/j -ik times as broad as long 24. 



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