296 Mr. P. Cameron on new 



not having a keel, by the niesopleurse not being so strongly- 

 punctured, and by the abdomen being shorter compared with 

 the head and thorax — it being shorter than these united, 

 ■whereas in L. jjygidialis it is distinctly longer. 



Tachytes rufipalpis, sp. n. 



Nigra, facie tibiisquo dense aureo pilosis ; abdomine argenteo 



lineato ; alis flavo-hyalinis, nervis flavis. £ • 

 Long. 17 mm. 



Scape of antennse densely covered with pale golden pubes- 

 cence ; beneath aciculated and thickly covered with long 

 pale hair ; the flagellum, especially at the base, thickly 

 covered with silvery pile. The vertex is closely and dis- 

 tinctly punctured and covered with long, soft, fuscous hair ; 

 behind the ocelli is a large semicircular, almost triangular, 

 deep depression ; round the inner side of the hinder ocelli 

 is a smooth shining keel, which is continued halfway down 

 the outer side of the ocellar region ; the ocelli are placed 

 thus ••• ; the face below the ocelli is thickly covered with 

 bright golden pubescence; the clypeus is closely and dis- 

 tinctly punctured, its upper part thickly covered with 

 golden hair, its apex depressed, smooth, and shining. The 

 mandibles closely punctured at the base, opaque, the rest 

 smooth and shining • the palpi are rufo-testaceous. The 

 base of the pronotum bears a pale golden pile ; mesonotum 

 alutaceous and thickly covered with fuscous pubescence ; 

 the scutellum is more strongly and distinctly punctured. 

 Median segment thickly covered with long fuscous pubes- 

 cence, alutaceous. Pleurse alutaceous ; the mesopleurse 

 thickly covered with golden pile and less thickly with 

 fuscous pubescence. Mesosternum closely punctured and 

 thickly covered with long pale pubescence ; the area between 

 the middle coxae is keeled laterally and down the middle. 

 Legs densely pruinose ; the tibise thickly covered on the 

 outer side with bright golden pubescence ; the tibial and. 

 tarsal spines are bright rufous j the calcaria are dark 

 rufous, darker at the base. Wings yellowish, more hyaline 

 and without a yellow tint at the apex ; the nervures are 

 bright yellow ; the upper two thirds of the first transverse 

 cubital nervure is roundly curved, the lower part is straight, 

 oblique ; the first recurrent nervure is received at slightly 

 less than the length of the top of the second cubital cellule 

 from the first transverse cubital nervure, the second dis- 

 tinctly before the middle. Abdomen black, the basal four 

 segments broadly banded with silvery pubescence ; the 



