CLASSIFICATION 63 



PP. Antennae setaceous, filiform, ser- 

 rate, pectinate, or flabellate, rarely 

 with three somewhat larger termi- 

 nal segments, in which case the 

 tarsi are widened. 

 Q. Anterior coxae.long, with dis- 

 tinct trochantins. 

 R. Abdomen with seven or 

 eight ventral segments 



Lampyridae. 

 GG. Hind tarsi either only three-jointed or four- 

 jointed, but apparently three-jointed, the third seg- 

 ment being small and concealed in a notch at the 

 end of the second segment. (See also GGG.) 

 H. Wings not fringed with hairs. 



I. Tarsi with second segment dilated. 

 J. Tarsal clav/s appendiculate or toothed; first 

 ventral abdominal segment with distinct curved 



coxal lines Coccinellidae. 



GGG. All tarsi four-jointed. 

 H. The first four abdominal segments grown to- 

 gether on the ventral side. 

 I. Tibiae not dilated nor fitted for digging. 



Colydiidae. 

 HH. Ventral segments of abdomen not grown to- 

 together. 



I. Wings fringed with hairs. 

 J. Hind coxae contiguous and with plates cov- 

 ering the femora entirely or in part. .Silphidae. 

 BB. Hind tarsi with only four segments, the fore tarsi, and al- 

 most always the middle tarsi also, with five segments. 

 C. Anterior coxal cavities closed behind. 

 D. Tarsal claws simple. 

 E. Abdomen with five ventral segments. 

 F. Ventral abdominal segments in part grown together. 

 GG. Penultimate segment of tarsi not spongy. 



Tenehrionidae. 



