84 BELVOSIA LEUCÜPYGA. 



gitudinal stripes , those on the outside broader and for- 

 ming spots; pleurae on the foreside sordid fulvous; there 

 is a black pilosity ou the whole thorax ; long bristles are 

 present on the light stripes and also on the hind part and 

 on both sides. Scutellum black, covered with gray dust 

 and beset with black hairs and a few long bristles late- 

 rally and on the hind margin. Abdomen oblong-ovate , 

 black; the second and third segments with a gray re- 

 flexion, which forms, according to the light, eitlier late- 

 ral spots or an anterior margin on the segments ; macro- 

 chetae at the hindborder of the segments , on the third 

 segment also in the middle , and on the fourth spread over 

 the whole surface. Legs (in comparison to other species 

 of this genus) long and slender, piceous ; the coxae and 

 base of the femora rather fulvous ; femora with regularly 

 placed , tibiae with more dispersed bristles ; ungues and 

 pulvilli long. Calyptrae dark gray with yellowish margin. 

 Wings with a gray tinge; the apical cross-vein as well as 

 the discal cross- vein curved ; the latter joining the apical 

 cell at three fourths of its length ; medial cross-vein placed 

 in an oblique direction and bordered with a blackish shadow. 

 A (-f from Chili (Dohrn). 



17. Belvosia leucopyga, n. sp. 



Nigra ; capite griseo-albo ; fronte nigricante , in cf pos- 

 tice attenuato; vitta froutali rufescente; thorace antice al- 

 bido-pollinoso , substriato; scutella piceo (cT) vel obscure 

 rufo (9) ; abdominis segmeuto ultimo albescente ; antennis 

 pedibusque nigris ; palpis ex rufo fuscis ; alis infuscatis. — 

 cfQ 12 mm. 



Head at least as broad as the thorax; face and cheeks 

 grayish white; front blackish, in cf considerably narrowed 

 towarils the vertex and here hardly occupying a fourth 

 part of the head; in Q tlie front broader, occupying a third 

 part of the head on the vertex ; frontal band obscure ru- 

 fous , rather narrow ; frontal bristles moderate , descending 



^otes from the Leyden IMusemn, ^Vol. IV. 



