REPORT OF THE STATE ENTOMOLOGIST IQI7 163 
-ounded ; ventral plate narrow, deeply incised, the lobes long, slender. 
darpes stout, excavated basally, the distal portion prolonged as a 

Fig. 63 Lobodi- Fig. 64 Lobodiplosis 
plosis acerina, acerina, side view of 
fifth antennal seg- anterior claws of male (en- 
ment of male (en- larged, original) 
larged, original) 
halberdlike chitinous blade, the apex acute. Type Cecid. 243. (See 
plate 8, fig. 10, plate 11, fig. 2) 
Lobodiplosis triangularis DL Sp: 
The male was taken March 7, 1913 by Owen Bryant at Grey- 
lock, Mass. It is easily distinguished from related forms by the 
characteristic shape of the lobe on the basal clasp segment. 
Male. Length 1 mm. Antennae twice the length of the body, 
light brown, 14 segments, the fifth with stems having a length twice 
and two and one-half times their diameters, respectively. Terminal 
segment with a long irregular spindle-shaped appendage. Palpi; 
first segment short, irregular, the second nearly twice the length 
of the first, the third a little longer than the second, more slender, 
the fourth a little longer than the third. Mesonotum dark brown. 
Scutellum and postscutellum light yellowish brown. Abdomen 
dark brown, genitalia fuscous yellowish. Halteres yellowish. Legs 
mostly yellowish brown. Claws rather long, irregularly curved, 
the anterior unidentate, the pulvilli about one-half the length of the 
claws. Genitalia; basal clasp segment moderately long, stout and 
with a narrowly triangular, sparsely setose apical lobe. Terminal 
clasp segment rather short; dorsal plate moderately long, broad, 
broadly and roundly emarginate, the lobes short, broadly rounded 
and sparsely setose; the ventral plate long, moderately broad, tri- 
angularly emarginate, lobes short, broadly rounded. Style long. 
Type Cecid. 1443. 
6 
