1942] 
Genus of Cimicoidea from Baltic Amber 
43 
costal margin moderately arcuate, the edge rounded and un- 
interrupted, there being no trace of a cuneus or cuneal fracture. 
Membrane with four distinct, uninterrupted, longitudinal veins, 
the three inner veins arising from inner half of straight apical 
margin of corium and running slightly outward or toward the 
apex of membrane; fourth vein arising at outer fourth of apical 
margin of corium, curved inward basally and running parallel 
to other veins apically. Venation of hind wings obscured ex- 
cept in one badly spread specimen. The hamus and decurrent 
vein are apparently absent though the other veins are perfectly 
distinct. 
Under surface convex, finely punctured and pubescent; 
ostiolar canals short but distinct, the edges feebly elevated, 
straight or slightly arcuate and located close to inner posterior 
margins of metapleura adjacent to hind coxae. Abdomen with 
spiracles of segments two to seven clearly visible sublaterally, 
the posterior margins of segments three to six very straight and 
complete, that of second segment slightly sinuate but complete, 
reaching lateral margins. Seventh segment short and concave 
posteriorly in the male, leaving the strongly sclerotized eighth 
segment broadly exposed, the eighth segment twice as long as 
seventh at middle and the ninth segment or genital capsule 
enormously developed, convex, one-third as long as all the rest 
of the abdomen. The male capsule is apparently symmetrical 
and must completely enclose the aedeagus and parameres be- 
cause only the convex capsule is visible in a perfectly clear side 
view. In the female the seventh segment is greatly enlarged, 
being half as long as the rest of the abdomen with its sides 
rather strongly rounded laterally and then nearly straight until 
rounded apex. This plate is not cleft and completely conceals 
the female genitalia. 
Legs relatively stout and finely pubescent. Femora feebly 
incrassate, tibiae cylindrical. Tarsi more slender, three-seg- 
mented, the first segment very short, second and third subequal. 
Claws slender and apparently without arolia. 
Genotype: Electrocoris brunneus n. sp. 
Electrocoris is unique in possessing distinct ocelli, an appar- 
ently three-segmented rostrum, three-segmented tarsi, four 
free longitudinal veins in the membrane without cross-veins or 
cells, a large and apparently symmetrical male genital capsule, 
