170 Annals Entomological Society of America [Vol. VIII, 
similar to G. marcovitchi (Fig. 8, Pl. XV). The first joint of the funcile 
about as long as the pedicel, second joint slightly shorter than the third; 
third and fourth subequal; club as long as the two preceding joints. 
Under high power, two ring joints are visible. 
Egg—tThe egg as dissected out of the female is club-shaped, whitish, 
with one end wider than the other. Length 0.45 mm.; width of wider 
end 0.075 mm.; width of opposite end 0.033 mm. (Fig. 14, Pl. XV). 
Larva —Length 1.5 mm. by 0.9 mm. wide. Color dull white with 
brownish mouth parts. The larva is apparently smooth all over (Fig. 6, 
Pl. XIV). The head and thorax are not differentiated, the former being 
reduced to a conical projection, on the end of which are situated the 
mouth parts. Looking down upon the head, the mouth parts are seen 
to be situated in a ring (Fig. 7, Pl. XIV), which is heavily chitinized on 
the dorsal half and to which are attached three prominent lobes, the 
middle one being the largest. Viewed from the side, these lobes project 
backward so as to appear like teeth. Within the center of the ring are 
the two mandibles that project downward into the mouth cavity. Just 
above them are two slender processes in each side of the ring that might 
be termed the maxille. 
NATURAL ENEMIES. 
On October 30, 1914, I found a parasitic larva in contact 
(Fig. 9, Pl. XV) with one of the Geniocerus larva, the latter 
being discolored and dead. Later this species bred out to be 
Gentocerus marcovitcht, Crawf. (Proc. Ent. Soc. Wash., 
1915). These parasites breed out in large numbers, and are 
among the first insects to emerge from the berries when taken 
indoors: There are apparently two generations and the winter 
is passed in the larval stage. As the berries remain greenish 
and pulpy, they would have no difficulty in ovipositing in the 
fall. Oviposition was observed in the usual way on August 13, 
lasting about two minutes. When the ovipositor was with- 
drawn it would apply its mouthparts to the exact spot where it 
had oviposited, apparently feeding. After a few minutes it 
would again oviposit in about the same spot, and then feed 
again. This operation was repeated several times. 
Geniocerus marcovitchi. 
“Female.—Length 2mm. Blue black or greenish black; joints of the 
funicle elongate, under high power the antennz show three ring joints; 
mesoscutum finely longitudinally sericeous, median furrow on mieso- 
scutum indistinct; metanotum with two yellow spots on disk; propo- 
deum with median carina short, hardly as long as the metanotum; sub- 
marginal vein with three or four bristles; legs blue black, the knees, 
extreme bases and apices of tibize and tarsi except apical joint whitish. 
