110 Bulletin of the Brooklyn Entomological Spain Vol. XII 
Head as in the preceding species, but the third antennal joint is larger, 
and there are 1-2 strong, black bristles on upper half of occiput in addi- 
tion to the weak hairs. Mesonotum with rather sparse setule, which are 
arranged in straight longitudinal series; intrahumeral bristles large and 
strong, directed almost straight laterad; scutellum slightly flattened on 
disc, broad, rounded in outline, disc with a few hairs, margin with 4 
bristles and 2 weak anterior hairs. Legs as in coxendix. Third costal 
division about three fourths as long as second; veins 3 and 4 slightly 
diverging on entire length of their apical sections. 
Length 2 mm. 
Type locality, Urbana, Ill., June 23, 1916, Augerville woods. 
Paratype, Meredosia, Ill., August 20, 1917. 
Resembles in general color and habitus mimor Adams, but 
readily distinguishable by the anterior thoracic and the postocular 
bristles. 
Madiza (Siphonella) setulosa sp. n. 
Male and Female.—Black, glossy. Head black, triangle glossy; inter- 
frontalia brownish fuscous, becoming reddish on anterior margin; an- 
tenne reddish brown, greater portion of third joint infuscated; arista 
black; cheeks black, narrowly whitish pruinescent above; proboscis glossy 
black; palpi yellow. Thorax and dorsum of abdomen entirely glossy 
black, the latter yellowish on venter. Legs black, extreme apices of 
femora, bases and apices of mid and hind tibia, entire fore tibie, and all 
tarsi yellow. Wings clear. Halteres with yellow knobs. 
Frons slightly over one third as wide as head; triangle extending beyond 
middle of frons, fringed with hairs on margins; interfrontalia with sparse 
setulz ; orbital setulae short and stout; eyes very short haired; antennz of 
average size, third joint rounded at apex; arista with very short pubes- 
cence; cheek linear, produced anteriorly; vibrisse weak; proboscis long, 
geniculated at middle. Mesonotum rather densely setulose; disc with a 
linear median depression and a broad submedian furrow on each side, 
between which there are 3-4 rather irregular series of setule; intra- 
humeral bristles strong, directed backward and outward; scutellum as in 
the preceding species, but somewhat larger, with more discal setule, and 
with 2 strong, approximated apical bristles and 4 much shorter lateral 
bristles. Mesopleura bare, glossy. Third and fourth veins parallel api- 
cally. Length 1.5-2 mm. 
Type locality, Freeport, Ill., July 4, 1917. 
Paratypes, Mahomet, October 10, 1915; Urbana, June 11, 1917; 
St. Joseph, June 0, 1915; Princeton, June 24, 1915; Mreepent; 
July 2, 1917; and Elizabeth, July 7, 1917, all in Illinois. 
