761. 

 LONCHOPTERA FLAVICAUDA. 



Order Diptera. Fam. Lonchopteridae. 



Type of the Genus, Lonchoptera lutea Panz. 



LoNCHOPTERA Metg., Macq., Curt. — Dipsa Fall. 



Antennae inserted in a cavity in the middle of the face, rather 

 remote, small and drooping ; 6-jointed, basal joint stout, pyri- 

 form-truncate, 2nd saucer-shaped, with a few strong bristles at 

 the apex, 3rd the largest, subtrigonate, hairy, bristly at the 

 base, 4th a minute joint inserted just above the apex of the 3rd, 

 5th small, oblong, 6th a longish pubescent seta (3). 

 Labrum stout, sublinear and acuminated. Meig. 

 Tongue a short bristle. Meig. 



MaxillcE short, sublanceolate (1 i). Palpi large, longer than 

 the labrum, clavate and pilose (/). 

 Lip moderate, forming 2 oval hairy lobes {g). 

 Head transverse, bristly, with a cavity beneath to receive the trophi : 

 hypostoma nearly straight, the margins bristly (2 the profile, 2* 

 the face) : eyes remote in both sexes, moderate, lateral and oval : 

 ocelli 3, minute, a little raised on the crown. Thorax ovate, not 

 broader than the head : scutel semiovate. Abdomen linear, ap- 

 pearing short and 6-jointed, the apex incurved in the male, the api- 

 cal joint large and ovate, the apex hairy and bilobed (7). Wings 

 incumbent, long, lanceolate, basal cells very short, discoidal none, 

 suhmarginal nervure running close to the costa, nearly from the base 

 to the apex ; a ciliated nervure continued round the wing ; Srd longi- 

 tudinal nervure furcate, the anal cell open in the male (9*), closed 

 and peduncled in the female {vide the coloured insect). Halteres 

 large with an ovate club. Legs longish, clothed with short rigid 

 hairs and a few long bristles : thighs, hinder the stoutest, with a 

 few bristles towards the apex : tibiae with a few slender bristles, 

 hinder the longest : tarsi 5-jointed, basal joint the longest, 4th not 

 shorter than the 5th : claws and pulvilli small. 



Flavicauda Meig. — Curt. Guide, Gen. 1260. 1^. 



Bright ochreous ; bristles, eyes, antennae and a spot on the 

 crown, encompassing the ocelli, black; a greyish red streak 

 down the thorax and the base of the scutel, divided and brown 

 next the head ; abdomen greyish-black, margins of segments 

 pale, sides and apex somewhat ochreous, 6th joint entirely 

 ochreous in the male : wings pale yellowish, iridescent, ner- 

 vures brown ; halteres yellowish- white ; hairs and bristles on 

 legs black ; tarsi blackish towards the extremity, anterior totally 

 black, as well as the apex of the tibiae. 



In the Author s Cabinet. 



