28 University of Michigan 



before me. The specimens from Brazil differ from the speci- 

 mens from Paraguay in the hind lobe of the prothorax, especi- 

 ally in the female, where the great lateral wings of the Brazil- 

 ian specimens are not duplicated elsewhere in the series (see 

 figures 142 and 144). Otherwise I am unable to detect any 

 clear differences. The males from Paraguay are larger than 

 those from Brazil in width of head, size of thorax, and length 

 of wings and abdomen, as shown by the following measure- 

 ments : 



Width of head: Paraguay, 5.5; Brazil, 5. 



Length of abdomen: Paraguay, 40; Brazil, 38. 



Length of hind wings: Paraguay, 26; Brazil, 25. 



But these differences are no more than might be expected 

 between individuals of a species from a single locality. The 

 thoracic dorsum of the Paraguay males is brighter and more 

 definitely marked than in the others but all specimens are in 

 poor coloration. 



In addition to the material studied by Calvert (4), I have 

 had for study a single male from the state of Sao Paulo, 

 Brazil. Coll. Cornell University, lot 298, sub 362. This speci- 

 men is like the Brazilian specimens. 



In both sexes the profile of the head is like figure 65. The 

 arculus is distal .5 or .6 mm. to the cubito-anal cross-vein, and 

 the anal vein separates from the posterior border .6 or .7 mm. 

 distad to the cubito-anal cross-vein in the front wing and .9 to 

 I.I mm. in the hind wing. 



Before the correct status of the several species of group 2, 

 living between 20° and 40° south latitude can be determined, 

 more and better material must be collected. 



