166 NEW YORK STATE MUSEUM 
slender, narrowly rounded apex. Palpi missing. Mesonotum red- 
dish brown, the yellowish submedian lines sparsely haired. Scu- 
tellum yellowish, postscutellum yellowish orange. Abdomen thickly 
haired, yellowish brown; genitalia yellowish. Wings hyaline, costa 
dark brown. Halteres pale yellowish. Coxae mostly a yellowish 
straw, the distal tarsal segments on the anterior and mid legs reddish 
brown; claws long, slender, evenly curved, the pulvilli about as long 
as the claws. Genitalia; dorsal plate short, stout, deeply and 
triangularly incised, the lobes somewhat divergent, roundly emar- 
ginate, the lateral angles somewhat produced, each posterior angle 
with a long, stout seta; ventral plate long, slender, narrowly 
rounded; style long, rather stout, narrowly rounded. Type, 
Cecid. 978. 
Parallelodiplosis spirae Felt 
1909 Felt, E. P. Econ. Ent. Jour., 2:293 (Clinodiplosis) 
1918 ———— N.Y. State Mus. Bul. 200, p. 134 
The pale yellowish midge with the extremity of the abdomen deep 
orange was feared the latter part of July and early in August from 
a variable yellowish or reddish, marginal roll occurring 
on the half-grown leaves of Spiraea salici- 
folia taken by Cora H. Clarke June 26, 1909 at 
Magnolia, Mass. This gall was observed in Albany 
June 5, 1908. 
The galls (fig. 34) are very variable, yellowish or red- 
dish, marginal leaf rolls some 3 mm long on the young 
leavesof Spiraea salicifolia and frequently 
assuming such fantastic shapes as to lead Miss Clarke 
to designate the deformity as a ram’s horn or Vienna 
Fig. 34 Par- crescent gall. 
eg ae Larva. Length 2.5 mm, yellowish. Head small, an- 
Se ee ees tennae rather long, tapering. Breastbone irregularly 
ks eo bidentate and consisting simply of a rather weakly 
oe & chitinized, somewhat expanded anterior portion, the 
posterior part obsolete. Skin nearly smooth, the pos- 
terior extremity broadly rounded and finely shagreened. 
Male. Length 1 mm. Antennae one-half longer than the body, 
thickly haired, reddish brown; fourteen segments, the fifth with 
stems two and two and one-half times their diameters respectively; 
terminal segment produced, the distal enlargement cylindric, with 
a length nearly three times its diameter and an irregular, fingerlike 
process apically. Palpi; the first segment short, irregular, the second 
with a length three times its diameter, tapering slightly, the third 
as long as the second, more slender, the fourth a little longer and 
more slender than the third. _Mesonotum reddish brown, the sub- 
median lines sparsely haired. Scutellum yellowish red, postscu- 
tellum fuscous. Abdomen yellowish with deep orange extremities, 
the segments margined posteriorly with dark chitin and with rudi- 

