COLEOPTERA. 5 I 3 
L. Anterior coxae separated by the horny 
prosternum. 
M. Body depressed, head free. p. 538. 
Mycetophagide. 
MM. Body cylindrical, thorax prolonged 
over the head. p. 554. Ciide. 
LL. Anterior coxae contiguous, prosternum 
semimcmbranous. p. 543... .Georysside. 
BB. Hind tarsi with only four segments, the fore tarsi, and almost 
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. 
G. Next to the last segment of tarsi spongy beneath. 
p. 584..LAGRIIDE. 
GG. Penultimate segment of tarsi not spongy, p. 582. 
Tenebrionide 
FF. Ventral abdominal segments free. 
G. Anterior coxal cavities confluent, p. 584. 
OTHNIIDE. 
GG. Anterior coxal cavities separated by the proster¬ 
num. 
H. Elytra truncate, tip of abdomen exposed. (Rhzzo- 
fihagUS.) p. 54 1 .NlTIDULIDE. 
HH. Elytra entire, p. 554 .Sphindide. 
EE. Abdomen with six ventral segments. 
F. The first two ventral abdominal segments grown to¬ 
gether ; the last two closely united, p. 584.iEGiALiTiDE. 
FF. Ventral abdominal segments free. p. 529. 
SlLPHIDE. 
DD. Tarsal claws pectinate, p. 5^4 .Cistelide. 
CC. Anterior coxal cavities open behind. 
D. Head not strongly and suddenly constricted at base. 
E. Middle coxae not very prominent. 
F. Antennae received in grooves, p. 584. ..Monommide. 
FF. Antennae free. 
G. Prothorax margined at the sides. 
H. Middle coxal cavities entirely surrounded by the 
sterna, p. 538. Cryptophagide. 
HH. Epimera of mesothorax reaching the coxae. 
34 
