Laguna @Batrine Laboratorp 181 
Anal suckers, while well defined, are small and separated by more 
than twice their diameter. <A bristle projects laterally from the base 
of the first hind leg. This leg exceeds the end of the abdomen by 
the last three joints. The second hind leg does not reach the end of 
the abdomen. <A bristle on the outer apex of the third and fourth 
joints of first hind leg. Length of the five males, 318 to 327 micrm. 
Width, 143 mierm. 
Figure 99. Figure 100. 
Copidognathus californicus Copidognathus californicus 
Legs of female all of approximately equal development and 
length. Abdomen without appendages, tapered behind and cleft 
half way from tip of abdomen to coxe four. Two stout bristles on 
each side of this forked abdomen; the posterior pair situated near 
the tip, pointing directly back, and a little shorter than the other pair 
which are situated one-third of the way from the tip of abdomen to 
coxa four, and point to the side and about 30 degrees back. Length 
of the seven females, 410 to 450 mierm. Width, 143 micrm. 
Among the thirteen specimens which I took from Petrochelidon 
lunifrons, there was one female which differed from the others as 
