MEASUREMENTS OP CALOPTENUS SPEETUS. 



47 



inner field (posterior marginal area) is marked with a few fuscous dots; in some indi- 

 viduals one or two quite distinct are seen, in others they are very minute and dim, 

 and not unfreqnently they are entirely wanting. Wings transparent, with a very 

 slight yellowish tinge at the base ; nerves and nervules of the costal area and apical 

 portion black, rest pale. The abdomen is generally glossy brown with the posterior 

 margins of the segments pale; venter yellowish or pale brown ; sternum pale brown 

 or dull yellow. Anterior and middle legs usually more or less 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 

 yellowish, the latter usually tinged with red; the upper carina and upper portion of 

 the inner face yellowish, marked with three large black spots or partial bands, one at 

 the base, the other two equally spaced in the middle portion ; apex or knee black or 

 with a black crescent each side. 



The posterior tibifevary in color from a bright coral red to pale yellow, and in some 

 cases to bluish. 



Measurements (these are given below). 



Male. — Differs from the female as follows : Is somewhat smaller, the average differ- 

 ence in the length of tne body being shown by the measurements given below ; the 

 wings are nearly or quite as long as in the female ; it is also somewhat slenderer, but 

 these differences are too slight and variable to be of any value as characteristics ; the 

 abdomen is enlarged or widened posteriorly and curved upward at the apex ; the last 

 vantral segment being elongated, rounded and narrowed upward like the prow of a 

 boat, and at the tip is distinctly notched, the 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 species, at least the most important one in dis- 

 tinguishing it from femur-ruhrum. The super anal plate, or triangular piece above the 

 anal opening, is sharply bicarinate longitudinally ; the tooth-like appendages at the 

 base, above, are narrow and slender. The cerci are somewhat longer than the width of 

 the preceding segment, are broad and flat throughout, the width equalling two-thirds 

 the length; not suddenly narrowed or constricted, moderately curved upward and in- 

 ward ; roundly narrowed and depressed near the apex. The prosternal spine (in both 

 sexes) is sub-quadrate and large at the base but distinctly transverse, robust and de- 

 cidedly conical, gradually lessening to a blunt point. 





Measurements of the female (from Biley^ 



s Seventh B export), 





B 



1=3 



§=3 



^-^ 



o 



go 



g-3 



^-2 







is 



-P rt 







1- 



-P eS 



5^ 



'3 % 





en 



n 



^-^ 







a§cS 





a o O 





Or-- 



fie 



|1. 



III 















Inch. 



Inch. 



Inch. 



Inch. 



Inch. 



Inch. 



Inch. 



Inch. 



1. ilo 



0.28 



0.15 



13 



1.48 



0.38 



0. 15 



0.23 



1.23 



0.33 



0.18 



0.15 



1.28 



0.38 



0.15 



0.23 



1.28 



0.40 



0.23 



0.17 



1.30 



0.36 



0.13 



0.23 



1.34 



0.30 



0.12 



0.18 



1.23 



0.36 



0.12 



0.24 



1.38 



0.40 



0.22 



0.18 



1. 30 



0.42 



0.18 



0.24 



1.29 



0.24 



0.06 



0.18 



1 33 



0.28 



0.04 



0.24 



1.33 



0.38 



0.19 



19 



1.35 



0.32 



0.08 



0.24 



1.44 



0.38 



0.19 



0.19 



1.3 5 



0.39 



0.15 



0.24 



1.25 



0.39 



0.19 



0.20 



1.33 



0.42 



0.18 



0.24 



1.38 



0.43 



0.23 



0.20 



1.35 



0.43 



0.19 



0.24 



1.24 



0.33 



0.13 



0.20 



1.26 



0..30 



0.06 



0.24 



1.25 



0.32 



0.12 



0.20 



1.38 



0.40 



0.16 



0.24 



1.15 



0.33 



0.13 



0.23 



1.33 



0. 3ii 



0.12 



0.24 



1.35 



0.42 



0.20 



0.22 



1.24 



0.33 



0.08 



0.25 



1.28 



0.40 



0.18 



0.22 



1.23 



0.38 



0.13 



0.25 



1.30 



0.40 



0.18 



0.22 



1 43 



0.43 



0.18 



0.25 



1.33 



0.43 



0.20 



0.23 



1.50 



0.43 



0.18 



0.25 



1.29 



0.28 



0.05 



0.23 



1.33 



0.33 



0.08 



0.25 



1.35 



0.33 



0.10 



0.23 



1.30 



0.43 



0.18 



0.25 



1.16 



0.36 



0.13 



0.23 



1.30 



0.33 



0.08 



0.25 



