1910] Lovell—Prosopidide of Southern Maine 185 
the more important characters of the two sexes drawn from 
material collected at Elkhart, Indiana. 
9 .—Length 644 mm. Black, with lemon yellow marks on the face, collar, 
tubercles and legs. Head a little longer than broad, the clypeus minutely roughened 
with sparse very faint punctures; face above the insertion of the antenne closely 
and finely punctured; the yellow mark on each side of the face triangular with a 
small notch opposite the socket of the antennz, the upward extension pointed, but 
in a large Maine series variable in form. Two spots on the collar; mesothorax 
closely and strongly punctured; the tubercles yellow. Wings hyaline tinged 
with fuscous, nervures, stigma and tegule chestnut brown, or the tegule darker. 
Legs black, the anterior and intermediate tibiz in front at base, and the entire 
basal half of posterior tibize yellow, tarsi chestnut brown. Enclosure on disc of 
metathorax distinct, the base coarsely ridged. Abdomen smooth and shining, the 
first segment very finely and sparsely punctured, the apical margins of the segments 
brownish. 
o'.—Length 51% to 6 mm. Clypeus, supra-clypeus, and sides of face lemon 
yellow, the upward lateral extensions obtusely pointed. Two spots on the collar, 
the tubercles, the anterior tibize in front, the intermediate and posterior tibize at 
base, and all the tarsi pale yellow. The antenne black, the flagella light brown 
beneath. The face finely, the mesothorax strongly punctured; the enclosure of 
the metathorax coarsely and irregularly pitted. Wings nearly hyaline or tinged 
with fuscous, nervures, stigma and tegulze chestnut brown, or the tegule piceous. 
First abdominal segment smooth and shining, finely and sparsely punctured. 
The male described by Say does not belong to this species, 
and can not be determined with much certainty. P. illinoiensis 
Robt. is closely allied to P. modesta, but the male is described 
as having the first abdominal segment impunctate. P. pennsyl- 
vanica Ckll. has the marks chrome yellow. P. modesta is a very 
common species in the eastern states, and in a large series of speci- 
mens exhibits considerable variation. The interrupted yellow 
line on the collar is wanting in a few specimens, and rarely there is 
a yellow dot on the tegulee. The males sometimes have a spot on 
the labrum and yellow lines on the mandibles; the punctation of 
the 1st abdominal segment also exhibits considerable variation. 
Specimens of the female have been taken on Rubus strigosus, 
June 16; Aralia hispida, July 16; Solidago, August 19; Eupa- 
torium perfoliatum, August 25; of the male on Rubus strigosus, 
June 25; Spirea salicifolia, July 16; Aralia hispida, July 28; 
and Solidago, August 19. 
