HYPEEALONIA. 93 



Van der Wulp's figure in the extent of the brown within the third posterior cell, 

 which, besides the base, occupies only a small space in the distal corner of that cell; 

 the hind margin, within the fourth posterior cell, has no pale brown border, nor is the 

 vein crossing the hyaline space clouded with brown, but there is a small cloud at the 

 tip of that vein. As Macquart observed, this species seems to be subject to variation. 

 It seems to be rather common in all parts of South America, down to Buenos Ayres, 

 and even further south. 



Anthrax rufescens, Walk., is an immature rubbed specimen of H. proserpina ; I have 

 seen the type in the British Museum. 



5. Hyperalonia latreillei, * $ . (Tab. 1. fig. 18, * ; Tab. II. fig. 1, $ .) 



Anthrax latreillei, Wiedeni. Aussereur. zweifl. Ins. ii. p. 633 \ 



Four submarginal cells; thorax and abdomen with rufous hairs along the margins ; abdomen with white spots 

 on the sides of segments 3, 6, 7 ( tf ) and 6, 7 ( $ ) ; wings brown, with a large subhyaline space along 

 the posterior margin and a subhyaline apex • in the male this apex is crossed by thickly clouded veins 



Length 18-19 millim. J 



Hob. Mexico 1 (coll. Bellardi) ; Guatemala, Cubilguitz (Champion) ; Panama, Bugaba 

 (Champion). 



Male. Antennal style about two thirds the length of the third joint ; base of the 

 first and second joints reddish. Head brown, more reddish about the mouth, beset on 

 the front with black, erect pile. Thorax greyish-brown or black, beset with short black 

 erect pile, especially in front ; collar with a fringe of rufous pile, which reaches over 

 the humeri to the root of the wings ; a tuft of similar rufous hairs between the root of 

 the wings and the base of the abdomen, continued, gradually attenuating, along the 

 edge of the abdomen nearly to its end. Scutellum reddish-brown. Upper surface of 

 the abdomen black, but, at the anterior margins of the segments, with traces of narrow 

 cross-bands formed by rufous, hair-like scales ; an uninterrupted cross-band of that 

 kind on the second segment, expanding towards the lateral margins; on the two 

 following segments the cross-band is dissolved into four spots ; large spots of white 

 scales on each side of the third, sixth, and seventh segments. Venter black, with rufous 

 pile. Legs brownish-black, partly rufous, with yellowish-red scales and black bristles. 

 Wings brown, slightly rufescent at the base ; subhyaline spaces within the second, third, 

 and fourth submarginal cells form an apical subhyaline spot, trisected by the more or 

 less clouded veins ; a small subhyaline spot within the expanded portion of the marginal 

 cell ; a still smaller one in the distal half of the first submarginal ; a large one in the 

 distal half of the discal cell coalesces more or less with the subhyaline disc of the third 

 posterior cell ; the latter again is separated by an infuscated vein from the hyaline disc 

 of the fourth posterior cell ; the subhyaline distal half of the axillary cell coalesces 

 with an oval spot in the distal half of the anal one ; a small subhyaline spot in contact 

 with the proximal end of the discal cell. 



