1941] 
Amber Aradidae 
99 
basal portion of head, 21 : :25, the tylus reaching slightly 
beyond its middle with the lateral lobes contiguous beyond 
it, subflattened, and dilated apically; antenniferous tuber- 
cles, measured from base of cleft in which the antennae are 
inserted, two-thirds as long as first antennal segment and, 
though strongly produced, rather blunt at apices ; postocular 
tubercles strongly produced, exceeding outer margins of 
eyes by a distance nearly equal to exposed width of an eye, 
4% : :6 ; disk apparently concave, though elevated along tylus 
and middle of base, because of elevated sides including eyes 
and postocular and antenniferous tubercles and especially 
because of strongly elevated lateral plates which cover inner 
portions of each eye. Antennae stout, the greatest thickness 
of first segment about equal to that of apex of front femur ; 
short, the total length scarcely more than one-sixth longer 
than greatest width of head, 73 : :60 ; proportion of seg- 
ments one to four as 19:18:17:19; first segment reaching 
level of apex of head. Rostrum obscured but not exceeding 
base of head. Pronotum transverse, being a little over twice 
as broad as long, 104 : :49 ; subequal to head on median line ; 
posterior margin distinctly concave in front of scutellum; 
anterior margin likewise distinctly concave so that the pro- 
notum is actually two-sevenths longer laterally than at 
middle; sides sinuately narrowed and distinctly elevated in 
front of broadest posterior fourth; antero-lateral angles 
extending to level of basal fifth of head, broadly, evenly 
rounded; disk depressed on anterior lobe between four ele- 
vated callosities and within elevated lateral margins. Scu- 
tellum about as long as pronotum on median line, its disk 
scarcely elevated basally, surrounded by abruptly elevated 
carinse broken only narrowly at apex and with a distinct 
longitudinal carina at middle which does not reach to apex ; 
shape subtriangular, the base slightly arcuate and sides 
evenly narrowed to apical fourth and then briefly subparallel 
to rounded apex. Hemelytra reaching nearly to base of geni- 
tal capsule, strongly narrowed posteriorly when at rest, the 
transverse width at level of apices of coria only half the 
width of abdomen at this point ; basal third of corium only 
moderately dilated and feebly arcuate, the distance across 
dilated bases of coria only slightly greater than greatest 
width of pronotum, 109:: 104, outer margin of corium 
