136 GENERIC SYNOPSIS. 
PSARUS Fub. ——— 1 sp. P. abdominalis F.? Meig. pl. 27. f. 12. 
Antennz inserted upon a short pedicle, second joint long; abdomen linear. 
PARAGUS Latr. Scava p. Fab. 6 sp. P. arcuatus Meig. Curt. 593. 
Antennz frontal, short, second joint short, third long ; face convex, without a pro- 
tuberance ; abdomen elongate-ovate. 
ASCIA Meig. Muresta p. Fall: 6 sp. M. podagrica F. Pz. 59. 16. 
Abdomen subelavate ; first and second joints of antenne very short, third oblong- 
ovate ; nose prominent. 
SPHEGINA Meig. Muvesta p. Fall. 3 sp. M. clunipes Fall. 
Abdomen clavate; first and second joints of antenne yery short, third rounded ; 
hind thighs thick. Meig. pl. 28. f. 5. 
DOROS Meig. (Iilig. Mag.) Mutesia p. Fab. Isp. S. conopseus F. 
Abdomen clavate; head obtusely conical; antennz distant; hind legs simple. 
ley Cia, DP). 
BACCHA Fab. ———— 6sp. B. elongata F. Curt. 737. 
Abdomen much elongated, clavate; face obliquely truncate beneath ; hind legs 
thin. 
EUMERUS Meig. Piriwza p. Fall. 6sp. EE. ornatus M. Curtis, 749. 
Abdomen elongate-ovate; segments constricted; hind thighs thick, spinose ; 
tibia bent ; scutellum subdenticulate. 
XYLOTA Meig. (A.) Syritta Enc. M. & Mcq. 1 sp. M. pipiens L. 
Hind thighs elongate-ovate, dilated at tip ; basal joint of hind tarsi short, dilated ; 
face scarcely tubercled; eyes with a large portion not united behind in ¢; 
palpi conical. Pz. 32. 20. 
MICRAPTOMA Westw, { ator ee Meg. | © 8P= Me segnis I. 
Differs from Xylota in the palpi being subcylindric, and in the transverse neryure 
of the middle of the wing being more or less oblique, and posterior coxe tu- 
bercled or spined. Curtis, 425. 
MYOLEPTA Newm. Xytota p. Mcq. 1sp. M. luteola Gm. 
Differs from the last in the posterior coxe being simple; hypostoma porrected 
and notched. 
BRACHYPALPUS Macg. Sritomyra Steph., Meig.? 1 sp. M. femorata L. ? 
Body villose; palpi short; posterior femora elongated, spined; scutellum not 
margined. 
CRIORHINA Aoff. Miresta B. Meig. 5Ssp. Cr. asilica Fall. Pz. 91. 21. 
Robust, hirsute; basal joint of antennz subelongate, third broader than long ; 
style naked ; submarginal cell foot-shaped. 
MILESIA Fab. Miresta D. b. p. Meig. 1 sp. M. speciosa Fab. Curt. 34. 
Abdomen cylindric, sericeous; hind legs simple; face with a frontal protuber- 
ance ; antenne with the third joint large, round; style naked. 
PIPIZA Meig. Enrisrauis p. Fab. 22sp. M. noctiluca L. Curt. 669. 
Abdomen elongate-ovate, pilose; head with a slight frontal prominence; nose 
rounded ; third joint of antenne subquadrate ; seta short. 
PSILOTA Metg. ————— 1 sp. PP. anthracina Meig. pl. 29. f. 20. 
Abdomen short, ovate; legs slender; antenne with the third joint oval; face 
with a frontal prominence ; nasus porrected, notched at tip. 
RHINGIA Scop. Conors p. Linn. 3 sp. C. rostrata L. Curt. 182. 
Nose porrected, as long as the head, notched at the tip. 
