PLATYPALPUS. 127 



white hairs behind. Palpi tawny. Antenna black, pubescent ; first 

 and second joints tawny ; third conical, a little longer than the first and 

 the second ; fourth much longer than all the preceding joints. Wings 

 colourless ; veins and halteres yellow ; third and fourth longitudinal 

 veins slightly converging. Abdomen cinereous, with a more or less 

 interrupted shining black stripe along the back. Legs tawny ; tips of 

 the joints of the tarsi brown ; middle femora thick ; middle tibiae 

 curved ; fore femora nearly as thick as the middle femora. 

 Bare. (E. I.) 



17. laticinctus, n. Cinereus, capite antico albo, antennis nigris 

 basi fulvis, alls sublimpidis, abdomine nigro, pedibus fulvis, femoribus 

 fusco-cinctis, tarsis apice fuscis. Long. If ; alar. 4 lin. 



Cinereous. Head shining white in front. Palpi yellow. Antenna 

 black, pubescent ; first and second joints dark tawny ; third conical, a 

 little longer than the first and the second ; fourth much longer than 

 the third. Thorax beset with a few tawny bristles, grey beneath. 

 Wings nearly colourless ; veins brown, yellow towards the base ; third 

 and fourth longitudinal veins slightly converging. Halteres pale 

 yellow. Abdomen black, shining. Legs tawny, stout ; tips of the 

 tarsi brown ; femora brown, tawny at the base and at the tips ; middle 

 femora thick ; middle tibia? hardly curved ; fore femora rather thick. 



Bare. In the collection of the Entomological Club. (E.) 



18. dichroa, Mg. zw. iii. 83. 36 (1822). Cinereus, antennis 

 nigris, alis limpidis, halteribus flavis, abdomine nigro, pedibus fulvis, 

 tarsorum articulis apice genubusque intermediis nigris. Long. 1^; 

 alar. 3i lin. 



Grey. Palpi yellow. Antennae black ; third joint long-conical, 

 longer than the first and the second ; fourth longer than the third. 

 Thorax beset with a few black bristles. Wings colourless ; veins black, 

 tawny towards the base ; third and fourth longitudinal veins nearly 

 parallel. Halteres yellow. Abdomen black, shining. Legs tawny ; tips 

 of the joints of the tarsi black ; middle legs with thick femora, black 

 knees, and curved tibiae. 



Not rare. (E.) 



19. divisus, n. Cinereus, capite cano antice albo, antennis flams 

 apice nigris, alis subflavis apice subcinereis, abdomine nigro, pedibus 



flavis. Long. \\ ; alar. 3 lin. 



Cinereous. Head hoary, shining white in front, clothed behind with 

 white hairs. Palpi white. Antenna yellow ; third joint black towards 

 the tip, conical, longer than the first and the second ; fourth black, 

 longer than the third. Wings tinged with pale yellow, slightly grey at 

 the tips; veins and halteres pale yellow ; third and fourth longitudinal 

 veins nearly parallel. Abdomen black, shining. Legs yellow ; tips of 

 the tarsi black ; middle femora thick ; middle tibiaa curved. 

 Bare. In the collection of the Entomological Club. (E.) 



