I/I 
ENTOMOLOGICAL NEWS. 
[April, '15 
gins of the sclerke broadly white; in alcoholic specimens four stripes 
show on the praescutum, the elongated median one being subdivided 
by a narrow line ; scutum light yellowish brown with a large rounded 
brown spot on each lobe; scutellum and postnotum reddish brown. 
Pleura pale brown and white, the brown being in the shape of a broad 
band extending from the cervical sclerites to the postnotum ; sternites 
brown. Halteres rather long, pale yellowish brown. 
Legs with the coxae and trochanters light yellow, remainder of the 
legs light yellowish brown, the tarsi a little more infuscated. 
Gonomyia {Gonovtyia) mathesovi n. sp. 
Figf. I. — Wing. Fig. 2. — Hypopygium, lateral aspect of the peni=; guard. 
Fig. 3. — Hypopvgium, ventral aspect. a penis guard ; b pleura ; c dorsal apical 
appendage ; d ventral apical appendage. 
Wings hyaline or nearly so, stigma barely indicated, veins pale yel- 
lowish brown. Venation: (see text figure i) Sc long, extending to 
about midlength of Rs\ Rs elongated, arcuated; i?2 + 3 subangulated 
at the proximal end of the stigma ; basal deflection of /?4 + 5 usually 
angulated ; cell ist M2 open by the atrophy of the outer deflection of 
vein M3 ; basal deflection of Cui far before the fork of M, this dis- 
tance being longer than the deflection. 
Abdominal tergites brown, narrowly and indistinctly margined on 
the lateral and caudal edges with dull yellow; sternites dull yellow. 
Male hypopygium (see text figure 3) with the ninth pleurite (b) 
enlarged at the base, at the apex produced caudad into an elongate, 
fleshy lobe, pale in color and provided with numerous hairs ; the ven- 
tral inner face of the pleurite is provided with two appendages, the 
dorsal one (c) very long, slender, simple, twisted, pale and blackened 
at the tip; the ventral appendage (cf) is bifid, the outer arm over 
twice as long as the short cephalic inner arm ; in a position of rest 
both of these appendages are decussate. Penis-guard (a) viewed 
from the side (see text figure 2) elongate, bent slightly ventrad, the 
tip enlarged and provided on the lower surface with four teeth, the 
