46 DIPTERA. 
Cnephalia hebes, Rondani, Dipterol. Ital. Prodrom. iii. p. 42. 2. 
Cnephalia bucephala, Schiner, Fauna Austriaca, Dipt. i. p. 445. 
Hab. Mexico, Jalisco, Atoyac in Vera Cruz (Schumann), Orizaba (Bellardi). — 
EUROPE. 
Two specimens from Orizaba, a male and a female, in the collection of Professor 
Bellardi, and two female examples recently received, one from Jalisco and one from 
Atoyac, do not differ from a typical male specimen (originally from the ancient 
collection of Prof. Ruthe) from Berlin; and they fully agree with the descriptions of 
the above-cited authors. 
I believe, however, that Schiner erroneously identified the species, on which Rondani 
founded his genus Cnephalia, with Tachina bucephala, Meig. The latter has neither 
the scutellum nor the basal joints of the antenne rufous; moreover, Meigen includes 
(Syst. Beschr. vii. p. 222) his Tachina bucephala in the genus Nemorea, in which the 
eyes are pilose, whilst in Cnephalia they are bare. 
fn 
/ a, 
2. Cnephalia onusta, sp.n., ¢. (Tab. III. figg. 4; 4a, head, 2.) °)°7 "Gp 
Cinereous; head white; antenne rufous, the third joint black; palpi rufous; thorax with four black stripes ; 
abdomen with blackish reflections. 
Length 9 millim. . 
Head white, somewhat silvery ; vertex cinereous; front much broader than the eyes; frontal band blackish- 
brown, proportionally narrow; frontal bristles forming on both sides three rows, of which the inner 
row descends beneath the end of the second antennal joint; cheeks with short black hairs; oral margin 
slightly prominent; vibrissee accompanied by some shorter bristles; on the occiput behind the eyes a 
regular row of short black bristles. Eyes bare. Antenne shorter than the face; the basal joints rufous, 
the third black with a rufous base; second joint elongate; third joint one and a half times as long as 
the second; arista short, indistinctly jointed, thickened to near the end. Proboscis black; palpi pale 
rufous, cylindrical. Thorax and scutellum greyish-cinereous; thoracic dorsum with four rather broad 
black stripes. Abdomen ovate, cinereous with blackish reflections, which are usually on the hind margins 
of the segments; anus rufous ; on the hind margin of the second segment a pair of dorsal macrochetee and 
a single one on each side; on the hind margin of the third segment a row of about eight macrochete ; 
some other macrochete round the anus. Legs black; front femora with regularly arranged bristles ; front 
tibiee outwardly with short bristles ; middle tibiz on the outside with four long bristles and inwardly with 
one; hind tibize outwardly almost fringe-like with bristles; foot-claws and pulvilli short. Tegule white. 
Wings greyish-hyaline, yellowish at the base ; small cross-vein on the middle of the discal cell; apical 
cross-vein distinctly curved; posterior cross-vein slightly curved, nearly straight. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
Two female specimens. 
8. Cnephalia obesula, sp.n., 9. (Tab. III. figg. 3; 3a, head, 2.) 
Blackish; head white; frontal band, palpi, and base of the antenne rufous ; scutellum testaceous; front 
margins of the abdominal segments with yellowish-cinereous reflections, the anal segment wholly of that 
colour ; the abdomen somewhat transparent. , 
Length 10°5 millim. 
Face and sides of the front silvery-white ; front much broader than the eyes; frontal band and vertex rufous ; 
frontal bristles forming on both sides three rows, the inner row descending to the end of the second 
antennal joint; the bristles of the intermediate row shorter and weaker; oral margin not prominent ; 
