1969] 
Beardsley — Fossil Scale Insect 
271 
ible. The right forewing lies directly over the abdomen making details 
of the dorsum of the metathorax and abdomen difficult to see. The 
hind wings, which in male Coccoidea are absent or reduced to very 
small, linear or club-like hamulohalteres, are indistinguishable in this 
specimen, although possibly present but obscured by the flaw plane. 
The comparative external morphology of adult male Coccoidea has 
been the subject of considerable research during recent years (Theron, 
1958, i960; Beardsley, 1968). Most of this work has involved study 
of the comparative morphology of the cephalic and thoracic sclerites 
in specimens which have been properly cleared and stained. Fortu- 
nately, the Cedar Lake specimen is well enough preserved that it has 
been possible to identify most of the integumental sclerites, thereby 
permitting comparison with the known adult males of extant Coc- 
coidea. In the description which follows the terms used are largely 
those introduced by Theron (1958) which have been accepted, with 
slight modifications, by other students of male coccids. 
The accompanying figures necessarily are somewhat diagrammatic. 
Because of distortion due to shriveling and the obscuring of certain 
structures by the dorsal flaw plane, it was necessary to observe all 
surfaces of the specimen from many angles, using different lens and 
light combinations, to properly delimit the integumental sclerites and 
other structures. It is quite possible that weakly developed sclerites 
which might have been seen had it been possible to clear and stain 
the specimen, have been overlooked. 
Electrococcus, new genus 
Coccoidea, presumably of the family Margarodidae (sens. lat.). 
Adult male characterized by small size, well-developed cephalic and 
thoracic sclerites, ten segmented antennae with the pedicel conspic- 
uously enlarged, three pairs of moderately elongate slender legs and 
a. pair of well-developed mesothoracic wings. Head well defined, 
separated from thorax bv a distinctly constricted neck region. Ocular 
sclerites well developed, each bearing an anterior dorsoventral row 
of simple eyes, plus a single larval eye (stemma) laterally behind 
anterior row. With well-defined dorsomedial and ventromedial scler- 
ites. Posterior margin of dorsum of head with a postoccipital ridge. 
Functional mouthparts absent; structure of tentorium not determined. 
Mesothorax strongly sclerotized ; with a convex prescutum sep- 
arated from lateral margins of thorax by anteriolateral extensions 
of the scutum. Scutum without a mesal membranous area. Scutel- 
lum small, somewhat convex, approximately trapazoidal in shape, 
apparently separated from mesopostnotum by a moderately wide 
