138 Annals of the Carnegie Museum. 



four-fifths or five-sixths of the length of each segment, about one-fifth 

 as wide as 3, and narrower on 4 and 5, tapering posteriorly only 

 slightly at the hind end ; inferior lateral black stripe absent from the 

 first fourth of 8 and tending to disappear from the hindmost third of 

 9 ; in addition 8 and 9 have a pair of dorsal black stripes, reaching 

 from the base to two-thirds of 8 and half of 9, not confluent with the 

 inferior lateral stripes, and connected with each other at the extreme 

 anterior end of their respective segments, their hind ends narrower, 

 rounded ; in one 9 8 has a pair of black dorsal spots at the hind end 

 of the segment in line with the two dorsal stripes, thus giving the latter 

 the appearance of being interrupted; 10 entirely blue, its posterior 

 dorsal margin deeply and narrowly cleft. 



cJ*9. Stigma of all the wings surmounting more than one cell (100 

 per cent. cT9). Antenodal cells of the front wings 4 (75 per cent. 

 J\ 66.7 per cent. 9) or 3 (25 per cent. d\ 33-3 per cent. 9), of 

 the hind wings 3 (100 percent. d\ 66.7 percent. 9), 4 (16.6 per 

 cent. 9) or 3+ (16.6 percent. 9). Percentages based on 2 d\ 3 9. 



Dimensions: abdomen cP 26.5-28, 9 25-27; hind wing $ iQ-5- 

 20.5, 9 20-22 mm. 



Habitat: — Brazil, Fazenda de Amaratu, Bom Fim in the State of 

 Bahia, November 20 and 21, 1907, by J. D. Haseman, 2 cT 3 9. 

 Carnegie Museum, Pittsburgh. 



The male of this species so closely resembles that of A. difficilis 

 Selys 11B that I should hesitate to propose a distinct name for it were it 

 not that the females (if I have correctly associated them) show a 

 number of differences from difficilis 9. Both sexes of A. hasemani 

 differ from those of A. difficilis in having the mesepimeral branch of 

 the black humeral stripe not reaching to the upper margin of the 

 sclerite and in having the inferior half of the sides of abdominal 

 segment 2 pale, unmarked with black, while in difficilis there is a 

 second longitudinal black stripe on each side of 2 below the one which 

 bounds the dorsal violet ; this second or inferior lateral black stripe 

 may be entirely distinct from the superior stripe or united with it to 

 a varying degree, so that in some (probably aged) individuals of diffi- 

 cilis the sides of 2 are even wholly black. The males of Ziasemani 

 further differ from those of difficilis in that the inferior branch of the 

 inferior abdominal appendages is much less acute. The females of 

 hasemani differ from those of difficilis by their pale labrum, nasus, and 



16 See Calvert, Biol. Centr.-Amer. Neur. p. 369. 



