548 LIST OF DIPTERA. 



Group 3. 



Corpus gracile, longiusculum, lineare, subpul>escens, parce 

 setosum. Facies apud epistoma convexa. Mystax setis nonnullis 

 longissimis. Proboscis longa, recta, linearis, gracilis. Antenna 

 longse; articulus 3us sublinearis, lo et 2o conjunctim fere duplo 

 longior. Pedes graciles, sat longi, breviter pilosi et subsetosi ; 

 tibia anticae intus subciliata?. 



Body slender, linear, rather long, slightly pubescent, with 

 a few bristles. Face convex towards the epistoma. Mystax with 

 several very long and slender bristles. Proboscis long, straight, 

 slender, linear. Antennae long ; third joint very slightly tapering 

 towards each end, nearly twice the length of the first and second 

 together. Legs rather long and slender, somewhat hairv, with a few 

 bristles. Fore fork of the cubital vein hardly undulating ; hind 

 fork hardly curved, slightly inclined towards the first externo- 

 medial ; first and second exteruo-medial nearly straight; third 

 forming a very obtuse angle with the praebrachial, joining the 

 fourth at some distauce from the border. Subanal joining the anal 

 near the border. 



Laphria elegans, Walk. 



Group 4. 



Corpus latum, pilis selisque perpaucis. Facies apud epistoma 

 convexa. Mystax setis octo. Proboscis longa, valida, recta. An- 

 tennarum articulus 3us longissimus, sublinearis, basi apiceque 

 subattenuatns, lo et 2o conjunctim duplo longior. Abdomen setis 

 paucis lateralibus. Pedes valde robusti, breviter pilosi, parce 

 setosi. 



Body broad, with very few hairs and bristles. Face convex to- 

 wards the epistoma. Mystax with eight bristles. Proboscis long, 

 stout, straight. Third joint of the antennae very long, nearly linear, 

 slightly tapering towards each end, about twice the length of the 

 first and the second together. Abdomen with a few bristles along 

 each side. Legs very stout, clothed with short hairs and witli a few 

 bristles. Fore branch of the cubital vein hardly undulating; hind 

 branch nearly straight; first and second externo-medial veins 

 straight ; third forming a very obtuse augle with the prcebrachial, 

 joiniim the fourth near the border. Subanal joining the anal very 

 near the border. 



Laphria vulcanus, Wud. ; L. altemans, Wied. ; L. fervens, Walk. 



