1NSECTA. 



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Genus DCCXXX1X. Gonypes, Latr. Lkptogaster, 

 Meig. 



Abdomen very long, slender, thicker towards its extre- 

 mity. 



Sfi. 1. Tifiuloidcs. Latr. 

 Inhabits Europe. 



Tbibe VIII. Empides. 

 Stir/ta 1. Proboscis perpendicular. 



Genus DCCXL. Empis, of Authors. 

 Antennae three-jointed, the last joint terminated by a 



seta ; palpi erect. 



Sfi. 1. Borealis. Fabr. 



Genus DCCXLI. Sicus, Latr. Tachydromyia, Meig. 

 Fabr. 



Antennae two-jointed, the last joint terminated by a seta; 

 palpi porrect. 



Sfi. I. Rafitor. Latr. 



Inhabits Europe. 



Stirfis 2. Proboscis porrected. 



Genus DCCXLII. Hybos, Meig. Fabr. Latr. Acro- 

 myia, Bonelli. 



Antennae two-jointed, the last joint terminated by a seta; 

 palpi porrect. 



Sfi. 1. Asiliformis. Latr. 



Tribe IX. Anthracides. 



Genus DCCXLIII. NEMESTRiNA,Latr. Rhynocepha- 



lus, (Act. Soc. Hist. Nat. Moscov.) 



Palpi exacrted ; proboscis very much longer than the 

 head. 



Sfi. 1- Reticulata. Latr. 

 Inhabits Egypt and Syria. 



Genus DCCXLIV. Mulio, Latr. Cytherea, Meig. 

 Fabr. 



Palpi received into the cavity of the mouth ; proboscis 

 generally elongate, porrect. 

 Sfi. 1. Obscura. Latr. 



Genus DCCXLV. Anthrax, of Authors. 



Palpi received into the cavity of the mouth j proboscis 

 short, not porrect. 



Sfi. 1. Hottentotta. Fabr. 

 Inhabits Europe. 



Tribe X. Bombylides. 



Stirfis 1. Proboscis never longer than the head, its point 

 incrassated ; antennae with their first joint longest, and 

 thicker than the third. 



Genus DCCXLVI. Cyllenia, Latr. 



Antennae shorter than the head, first joint not very thick; 

 abdomen elongate. 



Sfi. 1. Maculata. Latr. 

 Inhabits France. 



Genus DCCXLVII. Pi.oas, Latr. Fabr. Conophorus, 

 Meig. 



Antennx rather longer than the head, the first joint very 

 large, cylindric-conic; abdomen short. 



Sfi. 1. Hirticornis. Latr. 

 Inhabits Montpellier. 



Stirfis 3, Proboscis always longer than the head, point- 

 ed ; antennae with the third joint larger than the first 



Genus DCCXLVIII. Bombylius, of Authors. 

 Palpi distinct ; antennae with their first joint much lon- 

 ger than the second. 



Sfi. 1 . Major, of authors. 

 Inhabits Europe. 



Genus DCCXLI X. Phthiria, Meig. Latr. 

 Palpi distinct ; antennae with their two first joints short 

 and equal. 



Sfi. 2. Fulva. Meig. 



Genus DCCL. Usia, Latr. 

 Palpi not distinct ; antennae with their two first joints 

 short and equal. 



Sfi. 1. JEnea, Latr. 



Tribe XI. Acrooerides. 



Stirfis 1. Proboscis distinct; antennae two or three 

 jointed, with or without a terminal seta. 



Genus DCCLI. Panops, Lam. Latr. 



Antennae longer than the head ; three-jointed, the last 

 joint elongate, cylindric, without a terminal seta. 

 Sfi. I. Baudini. Lam. 

 Inhabits New Holland. 



Genus DCCLII. Cyrtus, Latr. 



Antennae very small, two-jointed ; the last joint ovoid, 

 with a terminal seta. 



Sfi. 1. Acefihalus. Latr. 



Stirfis 2. Proboscis obscure ; antennae three-jointed, not 

 terminated by a seta. 



Genus DCCLIII. Astomella, Dufour, Latr. 



Sfi. 1. Marginata. Dufour. 

 Inhabits Spain. 



Stirfis 3. Proboscis obscure ; antennae two-jointed, the 

 last joint terminated by a seta. 



Genus DCCLIV. Acrocera, Meig. Latr. 



Antennae inserted on the vertex. 

 Sfi. 1. Sanguinea. Meig. 



Genus DCCLV. Ogcodes, Latr. Henops, Illig. VValck. 

 Meig. Fabr. 



Antennae inserted anteriorly over the cavity of the mouth. 

 Sfi. 1 . Gibbosus. Latr. 

 Inhabits Germany and England. 



Tribe XII. Syrphides. 



Stirfis I. Head anteriorly conic-produced. Antennae 

 much shorter than the head, placed in a common elevation. 

 Oval cavity on the nasal prominence. Wings divaricating. 



Genus DCCLVI. Rhingia, of authors. 



Head anteriorly much produced, terminated by the pro 

 boscis. 



Sfi. 1. Rostrata, of authors. 

 Inhabits Europe. 



