80 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 
Crawti Coq.—(Figs. 7, 12, 13, Table V). Fig. 12 shows the 
first cerari. The wax pores are few and scattered. The 
number of conical sete varies from four to seven, usually more 
than four; the second and third cerari have 4-8 conical sete, 
usually more than four; the fourth cerari has 5-8 conical sete; 
the sixth cerari has 5-7 conical sete; the seventh cerari 4-7 
conical sete; the eighth cerari has 1-4 conical sete, usually 2-3. 
The cerari caudad of the eighth and to the seventeenth usually 
have 7-8 conical sete. The anal cerari has from 11-19 conical 
sete, usually 13-15. 
Fig. 13 shows an anal cerari. The bases of the conical sete are 
seen to be but little larger than in the first cerari. The number 
of wax pores is large, but the arrangement is scattering. The 
space covered by the cerari is much greater than in any other 
species studied, usually covering most of the dorsum of the anal 
lobe. Five robust ordinary sete of the first cerari are 4-5 
microns in diameter and 23-25 microns long. The conical sete 
of the anal cerari are 5-6 microns in diameter and 28-30 microns 
long. The most striking character of this species is the large 
number of conical sete in the cerari. 
The above discussion shows that the cerari as specific charac- 
ters are very promising. The conical sete are easily seen and 
counted in ordinary mounts. When the seta is broken off the 
base can easily be distinguished. The grouping of the wax pores 
is a distinctive specific character. It is believed that the charac- 
ter of the cerari will be very useful in the formation of analytical 
tables and the identification of species. 
Berkeley, California, March, 1913. 
