276 
Psyche 
[September 
(epm) present, consisting of a narrow posteriorly directed postcoxal 
ridge and small attached sclerotized patch. A very short precoxal 
ridge also discernible at base of metapleural ridge. A small trans- 
verse mesal metasternite (stn 3 ) present (fig. 8) ; an indefinite dark 
area on its posterior margin may be the metasternal furca. A pair 
of poorly defined, narrow, sclerotized patches, on either side of the 
mesal metasternite, probably represent detached portions of that 
sclerite, similar to those of Steingelia (Theron, 1958). 
Forewings (fig. 5) similar to those of modern male Coccoidea. 
Discernible vennation includes only anterior radius vein (r) extend- 
ing parallel to anterior margin, nearly to apex of wing, and media 
(m) extending approximately parallel to posterior margin, nearly 
to apex. A faint ridge-like thickening present just anterior and paral- 
lel to r and just behind and parallel to m. Wing surface with nu- 
merous fine, weakly developed fold lines, similar to, but less clearly 
defined than in Matsucoccus males (Beardsley, 1968). Legs (fig. 6) 
moderately long and slender; tibiae each with one or two conspic- 
uous apical setae; tarsi apparently one-segmented ; tarsal claws long, 
slender. 
Abdomen dorsoventrally flattened, apparently largely membranous, 
except for venter of segments 3 to 8 which appear somewhat sclero- 
tized. No dorsal or lateral tail-forming clusters seen. Penial sheath 
(fig. 7) apparently sclerotized dorsally only in area behind presumed 
site of anal opening. Ventral portion of sheath well sclerotized, 
apparently with a basal ridge and a slit-like longitudinal aperture; 
poorly defined dark area beyond apex of sheath possibly remains of 
aedeagus or endophallus. 
The type specimen is in the Museum of Comparative Zoology, 
Harvard University (MCZ #6623). 
Relationship of Electrococcus 
to Extant Coccoidea 
Two major subdivisions of the Coccoidea are recognized by most 
coccid taxonomists; the more primitive archeococcids, (usually lim- 
ited to the families Margarodidae and Ortheziidae) and the more 
specialized neococcids containing the remaining 10 or 12 generally 
recognized families (see Borchsenius, 1957). Among extant forms 
the morphologically least specialized adult males are those of the 
Ortheziidae and such margarodid subfamilies as the Matsucoccinae 
and Margarodinae (Beardsley, 1968). 
The Electrococcus canadensis male exhibits a much greater degree 
of morphological specialization than do those of the more primitive 
