166 



short, rounded, very thick, 6-segmented. Leys of normal Cyrtid 

 type; tibiae ending in a well-developed blunt spine on front side, 

 with a smaller less developed one on inner side. Three pulvilli 

 greatly developed ; claws long and strong. Wings with a very 

 conspicuous singular projection in the costa at tip of 1st longi- 

 tudinal vein, at about three- fourths the length of the wing, the 

 costa being considerably thickened at the spot ; auxiliary vein 

 ending in costa at about middle of wing; 2nd vein beginning just 

 before middle of wing, curving upwards towards its tip and 

 ending only just beyond tip of 1st vein ; 3rd vein beginning soon 

 after origin of 2nd, simple, forming a decided upward curve and 

 ending much before the wing-tip, at which spot the costa ends; 

 anterior cross-vein absent ; forking of 4th vein enclosing a discal 

 cell, closed distally by the discnl cross-vein ; posterior cross-vein 

 absent; 5th vein forked, the upper branch forming lower side of 

 disc.-il cell ; anal cell closed ; axillary vein absent. One sub- 

 marginal and two posterior cells, the 1st exceedingly large, 

 embracing wing-tip. 



Range. Europe, N. and Cent. America, Brazil, Somaliland, 

 Australasia. 



Life-history unknown. 



Macquart gives a figure of a wing and head of Pterodontia* in 

 his Hist. Nat. Dipt. (pi. xxi, figs. 5 b and 5 a, respectively), but 

 while the wing is of this genus, though very incorrectly drawn, 

 the head is that of an acalyptrate Muscid, and he acknowleges 

 this error later (Dipt. Exol. ii, p. 1), where he gires (pi. i, fig. 2) 

 a correct wing, and states that the acalyptrate previouslv figured 

 is Triyonosoma perilampiformis. 



126. Pterodontia kashmirensis, Licht. 



Pterodontia kaehmirensM. Lichtwardt. Deut. Ent. Zeits. p. 124 

 (1909). 



The two species described here are evidently very closelv 

 allied, if not Identical. Their only distinctions appear to be as 

 follows : 



Sides of thorax clay-yellow, with a round black 



spot ; coxte all pale kashmirensis, Licht. 



Sides of thorax black, except mesopleura, which 



is brownish yellow with a square black 



spot ; coxae blackish dorsolineata, Brun. 



rf . " Distinct by the globular body, the low-placed head, and 

 the remarkably shaped wing; a conspicuous clay-yellow species 

 with black markings. From the head hindward runs a narrow 

 black stripe up to about one-third of the thorax, where it widens 

 into an oval spot which reaches to the scutellum ; sides of thorax 

 clay-yellow, with a distinct round black spot directly in front of 

 the wing-base ; scutellum bearing an elongate transverse middle 



* /'. macquarti, Westxv. (Jlavipes, Macq., nee Gray). 



