I N S E C T A. 



159 



GENI-S DCCL. Urn, Latr. 



i not ditinct ; antenna- with their two first joints 

 short and equal. 



Sp. \. jEnea. Latr. 



TRIBE XI. ACROCERIDES. 



Slirpt 1. Proboscis distinct; Antennae two or three- 

 jointed, with or without a terminal seta. 



Pv.op*. GEVI-- DCC'I.I. PANOPS, Lam. Ijitr. 



Antennae longer than the head ; three-jointed, the 

 last joint elongate, cylindric, without a tenninal seta. 

 .*>'/>. 1. Banditti. Lam. 

 Inhabits New Holland. 



Cjrms. GESU* DCCLII. CVHTUS, Latr. 



Antennae very mall, two-jointed; the last joint 

 ovoid, with a terminal seta. 

 I. Acej>hnlut. Latr. 



/ 2. Proboeci* obscure ; antenna; three-jointed, 

 not terminated by a seta. 



A=t :.:... GENUS DCCLlil. ASTOHELLA, Dufour, Latr. 



Sp. \. Margittata. Dufour. 

 Inhabits Spain. 



in S. Proboscis obscure ; antenna; two- jointed, 

 the la-it joint terminated by a seta. 



Actwtn. CMOS DCCLIV. ACROCERA, Meig. Latr. 



Antennae inserted on the vertex. 

 , 1. Satguimta. Meig. 



o. <- GENU* DCCLV. OOCODM, lair. HENOPS, Illig. 



Walck. Meig. Fabr. 



Antennv inserted anteriorly over the cavity of the 

 mouth. 



I. GMotnt. Latr. 

 Inhabit* Germany and England. 



TRIBE XII. SVRPIIIDE*. 



Slirp$\. Head anteriorly conic-produced. Antennae 

 much shorter than the head, placed in a common ele- 

 vation. Oval cavity on the nasal prominence. Wing* 

 divaricating. 



junfia. GEKI-S DCCL VI. RHIKOIA, of authors. 



Head anteriorly much produced, terminated by the 



[-"',-, .-. 



/'or/rate, of author*. 

 Inlubiti Europe. 



II. SERICOVVIV Latr. 



-nruc with their seta plumoe, interted at the dor- 

 sal juncture of tin- necood and third joints; but joint of 

 the antennse saborbicular. 



I. IjHifamtm, Latr. 

 Inhabit* Europe. 



t GrsL-*DCCLVIII. VoLi-ccELLt, Geoff. Schaef. Latr. 

 PTKROCERA, Meig. 



Antenna; with their last joint elongate; seta plumose, 

 inserted at the dorsal juncture of the second and third 

 joint. 



ftp. I. Pel****. Latr. 



Inhabit* Europe. 



GENCS DCCLIX. EVITAUS, Latr. Fabr. HELIOPHI- 



LUS, Meig. Illig. KvistaJi?. 



Antennne contiguous at their base, their last joint 

 broader than long ; seta (simple or slightly plumose) 

 inserted beyond the dorsal junction of the second and 

 thin! joints ; head anteriorly distinctly rostritorm. 



Sp. 1. Narcissi. Fabr. 



GENUS DCCLX. HELOPHILUS. ELOPHILUS, Meig. Helophilu>. 



Illig. Latr. 



Antennae contiguous at their base ; their third joint 

 longer than broad ; seta (simple or slightly plumed ) 

 inserted beyond the dorsal juncture of the second and 

 third joints ; bead anteriorly distinctly rostritorm. 

 A/;. 1. Tei'ax. Latr. 

 Inhabits Europe. 



GENUS DCCLXI. SYRPHUS, of authors. Sjrphiu. 



Antennae separate at their base ; their last joint sub- 

 orbiculate; seta inserted beyond the dorsal junction 

 of the second and third joints ; abdomen elongate-sub* 

 quadrate, gradually somewhat narrower towards its ex- 

 tremity. 



Sp. 1. Variabilu. Panz. 



Inhabits Europe. 



GENCS DCCLX 1 1. Donos, Meig. Illig. Don*. 



Antenna- separate at their base ; their last joint sub- 

 orbiculate; seta inserted beyond the dorsal juncture of 

 the second and third joints ; abdomen clavate, contract- 

 ed at each side of its bate. 



Sp. I. C'onoptfut. 



Miletia ctmoptta. Fabr. 



Syrpkui coarctatiu. Pan*. 



Inhabits Europe. 



GENUS DCCLX 1 1 1. SC*VA, Fabr. SOT*. 



Antennae separate at their base ; their last joint sub- 

 ovate; seta inserted beyond the dorsal juncture of their 

 second and third joints ; abdomen subovate trigonal ; 

 the length double the breadth. 

 I'l/ratiri. Fabr. 



Inhabit* Europe. 



tiiirpt V. Head not anteriorly conic-produced ; an- 

 tennae about the length of the head, placed in a com. 

 man elevation ; oval cavity on the nasal prominence ; 

 wing* deflezed or slightly divaricating. 



GEMU* DCCLXIV. PARAOUS, Latr. Pingm. 



Antennz separate at their base ; their two first joints 

 subequal ; seta simple, not distinctly articulated. 

 Sp. 1. Bicolor. Latr. 



GENU* DCCLXV. PSARUB, Latr. Fabr. Purus, 



Antennae inserted on a common elevation ; the se- 

 cond joint larger than the first; seta thick, styliform, 

 distinctly biarticulate. 



Sp. 1. AUominalit. Fabr. 



ur 3. Head not anteriorly conic-produced ; an- 

 teniuc very much longer than the head ; placed on a 

 common elevation ; oval cavity on the nasal promi- 

 nence ; wing* deflexed. 



GENUS DCCLXVI. CIIRYSOTOXUM, Meig. Latr. Chiyiotox- 

 Antennap subcylindric ; their last joint having a seta um * 

 at it* base. 



Sp. 1. ArnatHm. Latr. 



