Descriptions of Diptera. xcv 



Mr. S. Stevens, and others. It was first discovered by Mr. Ingall, in the Isle of 

 Sheppy (Zool. 1863), and subsequently by Mr. S.Stevens, at Sheemess (Zool. 2857). 

 This insect a good deal resembles the European Psyche undulella, but Mr. Stain- 

 ton, who has carefully compared it with the figure of that species, pronounces the two 



to be decidedly distinct. 



Edward Newman. 



Art. V. — Characters of undescribed Diptera in the British Museum. 

 By Feancis Walker, Esq., F.L.S. 



(Continued from page lxxii). 



Tabanus tkipunctifer, fem. 



Niger, nigro-hirtus, capite albo, thorace fulvo pubescente, antennis pedibusque nigris, 

 alis nigro-fuscis triguttatis apice cinereis. 



Body black : head white, clothed with bright tawny hairs : crown partly black and 

 clothed with black hairs : eyes pitchy : sucker and palpi black ; palpi clothed towards 

 the base with tawny down : feelers black ; third joint slightly curved upward, very 

 slightly convex beneath, armed above with a very short horn, which forms a right an- 

 gle ; compound joint slightly curved upward, very much shorter than the third joint : 

 chest thickly clothed with tawny down : breast thickly clothed with black down : ab- 

 domen nearly linear, rounded at the tip, much longer than the chest, clothed with short 

 black hairs, and towards the tip with short yellowish-white hairs : legs black, thickly 

 clothed with short black hairs ; foot-cushions tawny : wings blackish-brown ; tips 

 gray ; a very small triangular colourless spot in the middle of the disk, and two more 

 of an oblong shape near the base ; curve of the tip cross-vein not angular ; wing-ribs 

 and veins black ; poisers black, with pitchy tips. Length of the body 10 lines ; of the 

 wings 23 lines. 



Port Natal. 



Tabanus usttjs, mas. 



Piceus, capite fiavo, thorace vittis quinque fulvis omato, abdomine ferrugineo apice 

 piceo maculis trigonis fulvis omato, antennis rufis basi nigris, pedibus ferrugi- 

 neis, tarsis piceis, alis cinereis ad costam fu.scis nervorum marginibus sub- 

 fuscis. 



Body pitchy : head covered with dull yellow, clothed with dull yellow hairs in front 

 and beneath : eyes dark red, of very large facets ; fore part and a border round the 

 hind part black, composed of very small facets : sucker black : feelers red ; first and 

 second joints black ; third curved upward, very slightly convex beneath, armed above 

 with a very short horn, which forms an acute angle, and has a slightly concave outer 

 side and a slightly convex inner side ; compound joint curved upward, much shorter 

 than the third joint : chest clothed with brown hairs, adorned with five dull tawny 



