146 GENERIC SYNOPSIS. 
Hal.* (A. vittata), Pherbellia R. D. (S. monilis Mg., &c.), Dyctia R. D. 
(S. cinerella Fall.), and Melina R. D. (M. virgata) are referred to this 
genus by Mr. Haliday. 
TETANOCERA Dum. Evruycera Latr. 17 sp. M. Umbrarum L. 
Antenne as long as the head, second joint equal in length to the third; face not 
prolonged into a muzzle. 
Obs. The subgenera Tetanocera R. D. (T. elata Fall.), Pherbina R. D. 
(T. Hieracii Fab., reticulata Fall., §c.), Thais Hal. (S. obliterata Hal.), 
Limosia R. D. (T. marginata Meig.), Hydromyia R. D. (dorsalis Meig., 
aratoria Meig.), Chione+ R. D. (or Elgiva Mcq., M. cucullaria, &c. ), and 
Ilione Hal. (1. lineata Hal.) are referred by Mr. Haliday to the genus 
Tetanocera. 
SEPEDON Latr. Baccua Fab. 2 sp. 8S. Sphegeus Fall. 
Antennz longer than the head, second joint longer than third; face perpendicular ; 
forehead rugose. 
D. Oriripes ?. 
TRIGONOMETOPUS Mcq. Trranocera Meig. 1 sp. T. frontalis Mg. 
Head long, triangular; face long, horizontal, nearly naked ; second joint of an- 
tenne rather long, third conie; style naked; abdomen depressed. Curt. 689. 
DORYCERA Meig. Oscinis R. D. 1sp. D. Graminum. 
Head elongate, obtuse; face convex ; forehead much advanced ; second joint of 
antenne long, compressed, third longer, cultriform ; style tomentose. Meig. 
tab. 57. f. 1—5. 
OTITES Latr. Sctomyza Meig. 1sp.? O. bucephala Mg. 
Head rather larger; face rather convex, carinated; forehead obtuse, flat ; antennz 
short, second joint conic, third oval, as long as the second ; style naked. 
TETANOPS Fal. ———— Isp. T. myopina Fall. 
Head conic; face much inclining, with two impressions; third joint of antenne 
oval, rounded beneath; style naked; abdomen long, depressed ; ovipositor in- 
curved, 
E. lLoxoceripes. 
CHYLIZA Fall. Dasyna R. D. 3sp. C. leptogaster Fall. Meig. t. 51. f. 23. 
Epistoma rather prominent, naked; third joint of antennx oblong, obtuse; style 
tomentose; abdomen and legs naked ; mediastinal nervure simple. 
Psira Mg. : 
PSILOMYIA Latr. OWicia ROD. 8sp. M. fimetariaL. Pz. 20. 22. 
Thorax naked; abdomen thin, 6-jointed ; ovipositor long ; third joint of antenne 
oblong, compressed; style finely plumose ; mediastinal nerve simple. 
LOXOCERA Meig. Musca p. Linn. 4sp. M. Ichneumonea L. Pz. 73. 24, 
Narrow ; face inclined ; antennz very long, third joint filiform, as long again as 
the head ; style tomentose. 


* « Arista plumata ; tibiz cilio preapicali gemino.” ( Hal. ) 
+ The species referred to Chione by Macquart (tom. ii. p. 371.) form the genus 
Hydromyia R. D, (Haliday’s MSS.) 
