37 
fuscous dots, usually single to where the thin portion commences, now 
and then a double dot appearing; from this point to the apex they 
decrease in size and distinctness, and spread over the entire width ; 
as a general rule the inner field is marked with a few fuscous dots, in 
some individuals a few quite distinct are seen, in others they are very 
minute and dim, and not unfrequently they are entirely wanting. 
Wings transparent, with a very slight yellowish tinge at the base ; 
nerves and nervules of the costal area and apex black, rest pale. The 
abdomen is generally a glossy brown, with the posterior margins of 
the segments pale; venter yellowish or pale brown; sternum pale 
brown or yellow; anterior and middle legs usually rufous, but varying 
from reddish-brown to pale 
honey-yellow. Posterior 
femora with the disk 
reddish-brown, sometimes 
showing dim outlines of 
oblique bands; the inner 
face and lower carina yel¬ 
lowish, the latter usually 
tinged with red; the up¬ 
per carina and upper por¬ 
tion of the inner face yel¬ 
lowish, marked with three 
large black spots or par¬ 
tial bands, one at the base, 
the other two equally spac- 
:'3?i 'Z-r - 
ed in the middle area IFig. 8 . Caioptenus spretus. a a a female? in the act of depos- 
fl-nPY nr Irnoo hloplr nr iting their eggs; 6 an egg-pod with one end open showing 
d r CA , uiaoii., ui the eggs ; c eggs separated from the pod ; d and e show the 
with a olack crescent each egg-pods in their usual position in the earth; /shows where 
side. < The posterior tibiae a pod has been deposited and the hole closed ' 
vary in color from a bright coral-red to pale yellow, and in some cases 
to bluish. 
Male .—Differs from the female as follows ; Is somewhat smaller and 
shorter, but the wings are about as long as those of the female ; the 
abdomen is enlarged or widened posteriorly and strongly curved up¬ 
ward at the apex; the last ventral segment being elongated, rounded 
and narrowed upward like the prow of a boat, and is distinctly 
notched at the tip, the lips or lobes somewhat tubercular in form. 
This part of the apical segment is covered with minute scattering 
hairs. This notch forms one of the chief characteristics of the spe¬ 
cies, at least the most important one in distinguishing it from femur- 
rubrum. The super-anal plate or triangular piece above the anal 
opening, is sharply bicarnate longitudinally; the tooth-like appen¬ 
dages at the base, above, are narrow and slender. The cerci are some¬ 
what longer than the width of the preceding segment, are broad and 
flat throughout, the width equaling two-thirds the length, not sud¬ 
denly narrowed or constricted, moderately curved upwards and in¬ 
wards ; roundly narrowed and depressed at the apex. The prosternal 
spine (in both sexes) is sub-quadrate and large at the base, but dis¬ 
tinctly transverse, robust and decidedly conical, gradually lessening 
to a blunt point. 
