42 University of Michigan 



midventrum, but 3 or 4-6 are as definitely four-banded in 

 ventral as in dorsal view; 7- 10 as in dorsal view, except that 

 10 is like the preceding segments, the black being confined to 

 the dorsum. Superior appendages black; inferiors dull yel- 

 low or orange. 



Legs brown or black; the femora paler, yellowish, or brown- 

 ish, the hind femora the palest, sometimes entirely pale except 

 apex. 



Wings bright saffron tinged at base to the first or second 

 antenodal, remainder of wung usually hyaline, rarely tinged 

 light brown or dingy yellow ; stigma black, covering scarcely 

 one and one-half to two cells; two or two plus postquadrangu- 

 lar cells in the front wing, two minus to two plus in the hind 

 wing; postnodals of front wing 16 to 18, of hind wing 14 to 

 16; in both front and hind wings the arculus is distal to the 

 cubito-anal cross-vein about .4 mm., and the anal vein sep- 

 arates from the posterior border about .2 mm. or less distad to 

 cubito-anal cross-vein. 



A number of tenerals were taken which show the changes 

 in coloration with maturity. In the most teneral the face is 

 light lemon yellowy darker on the vertex, the black on vertex 

 reduced, and paling to brown over considerable areas; the 

 pale markings of thorax and abdominal segments i and 2 are 

 almost white, cream colored, and there is a dark indefinite 

 area above on the metepimeron. This dark area is found on 

 all the tenerals ; all of them have the thorax equally pale, 

 and the pale color of the abodmen varies from light lemon yel- 

 low to lemon, but the color pattern is preserved in all. In all the 

 tenerals the wings are entirely hyaline, no saffron tinging at 

 base. In a teneral, slightly more mature than the youngest one, 

 the face is yellow and the vertex in front is orange, the black of 

 the vertex not reduced in area but with some obscure or pale 



