1016 LIST OF DIPTEEA. 



Trypeta Ocresia, n. s., fern. Fulva, terebra longa apice nigra, pal- 

 pis piceis, antennis pedibusque fulvis, alis limpidis fulvo viitatis. 

 Head and chest beset with long black bristles, which form a 

 row on each side of the crown, and there is a cross fringe of short 

 black bristles behind the head: head tawny ; sides of the face with- 

 out bristles ; epistoma slightly prominent : eyes red ; fore part flat, 

 its facets larger than those elsewhere ; sucker pitchy, clothed with 

 tawny hairs : palpi pitchy, beset with black bristles : feelers tawny, 

 as long as the face ; third joint near thrice the length of the second, 

 slightly decreasing in depth from the base to the tip, which is 

 rounded ; bristle black, slender, downy, tawny at the base, much 

 more than twice the length of the third joint: chest and breast dark 

 tawny : chest clothed with short black hairs : abdomen dark tawny, 

 rather thickly clothed with short black hairs ; the part before the 

 tube is shorter and narrower than the chest, and slightly increases 

 in breadth from the base to the tip ; the tube is cylindrical, longer 

 than the preceding part, and slightly decreases in breadth from the 

 base to the tip, which is black : legs tawny, clothed with short black 

 hairs ; claws black ; fore thighs thickly armed beneath with black 

 bristles : wings colourless, adorned with tawny stripes, which pro- 

 ceed in two branches from the base of the wing; the upper fork has 

 a colourless interval between it and the fore border, which it after- 

 wards joins, and shortly terminates at half the length of the wing ; 

 the lower fork is much curved, joins the tip of the first, and there 

 (including a triangular colourless spot) attains the fore border, and 

 proceeds to the tip of the wing ; parallel below it there is a forked 

 stripe, which is imperfect, nearly half of the tip fork being wanting ; 

 these tawny marks are slightly streaked with brown ; wing-ribs 

 tawny ; veins tawny, pitchy in the tawny parts of the wing ; longi- 

 tudinal veins slightly waving ; third longitudinal vein much curved 

 upward near the tip ; lower cross-vein nearly straight, slightly ob- 

 lique, separated by less than its length from the middle cross-vein, 

 which is straight and oblique ; poisers tawny. Length of the body 

 4^ lines ; of the wings 7 lines. 

 a. Jamaica. From Mr. Gosse's collection. 



Trypeta Hysia, n. s., fem. Fusca, capite fulvo, abdomine nigro- 



piceo basi fulvo apice fusco, palpis fulvis, antennis piceis basi 



fulvis,pedibusfuscis, alis limpidis fusco quadrivittatis. 



Body brown, clothed with short tawny hairs : head and chest 



beset with a few black bristles : head tawny, ferruginous between 



the eyelets and the base of the feelers : eyes brassy ; fore part flat, 



its facets very much larger than those elsewhere : sucker ferrugi- 



