108 DIPTERA. 
third vein from its origin to the small cross-vein with a row of short bristles (in M. inquinata there are 
only some small bristles at the base of that vein, as in almost all Tachinine). 
Hab. Mexico, Cuernavaca (H. H. Smith). 
Two female specimens. 
8. Masicera pumila, sp. n., 2. 
Cinereous ; frontal band, four thoracic lines, hind borders of the abdominal segm nents, antenne, palpi, and legs 
black. 
Length 4°5 millim. 
Head broader than the thorax ; front cinereous, broader than the eyes; frontal band narrower than the cine- 
reous lateral portions ; frontal bristles rather weak, somewhat irregular, three of them descending beneath 
the root of the antenne, the bristles on the vertex much stouter ; face and cheeks whitish ; above the 
vibrisse several shorter bristles, mounting to nearly half the face. Antenna a little shorter than the face ; 
second joint with a short bristle ; third joint three times as long as the second ; arista thickened to the 
proximal half and then suddenly becoming as fine as a hair. Proboscis and palpi black. Thorax and 
scutellum cinereous; thoracic dorsum with four black lines—the outer lines interrupted at the transverse 
suture, the intermediate ones obsolete behind. Abdomen ovate; first segment black; the following 
segments cinereous with the posterior half shining black, sometimes appearing blackish with narrow white 
front borders ; macrochetze on the hind margins of the segments only. Middle tibize with some long 
bristles; hind tibiee outwardly with a row of short bristles and a longer one below the middle. Tegule 
whitish. Wings nearly hyaline; small cross-vein distinctly before the middle of the discal cell; apical 
cell narrowly opened ; apical cross-vein very slightly concave; posterior cross-vein straight. 
Hab. Mexico, Amula 6000 feet in Guerrero (7. H. Smith). 
A single female specimen. 
9. Masicera picta, sp.n., ¢ 9. (Tab. III. figg. 13; 13a, head in profile.) 
Ochraceous ; frontal band, four stripes on the thorax (two and two united), four transverse bands on the 
abdomen, antennz, and legs black; palpi rufous; base and costa of the wings blackish (3) or 
black (¢@ ). 
Length 5-5°5 millim. 
Front ochraceous, as broad as the eyes; frontal band narrower than the ochraceous lateral portions ; frontal 
bristles descending on each side in a curved row to beneath the second antennal joint; face yellowish- 
white; vibrisse surmounted by three shorter bristles. Antenne nearly as long as the face; second joint 
bristly ; third joint five ( 2) or six (¢) times as long as the second; arista thickened to the proximal 
half. Proboscis black; palpi rufous, thickened and with a whitish reflection towards the tip. Thoracic 
dorsum ochraceous, with four black stripes, which do not reach the hind margin and are more or less 
united two and two, so that they usually resemble two black bands; scutellum black, its hind margin 
sometimes rufous; pleure grey. Abdomen ovate, ochraceous; the first segment and broad bands on the 
hind margins of the following segments black; second and third segments with marginal macrochete ; 
anal segment with several irregular macrochate ; ventral surface similarly marked, but with the ochra- 
ceous portions whitish-grey. Legs with scattered bristles; foot-claws and pulvilli of the anterior tarsi 
elongate in the male, the pulvilli greyish. Tegule whitish, Wings grey; the dark coloration at the 
base and costa extending over the proximal half of the discal cell—in the male it is faintly blackish, in 
the female intense black and prolonged to the end of the second vein; small cross-vein on the middle 
of the discal cell; curvation of the fourth vein rectangular; apical cross-vein slightly concave ; posterior 
cross-vein nearly straight. 
Hab. Mexico, Santiago Iscuintla in Jalisco (Schumann), Xucumanatlan 7000 feet 
and Omilteme 8000 feet in Guerrero, Vera Cruz, Teapa in Tabasco (H. H. Smith). 
