6 
Psyche 
[March 
IV-VI with pedicels grayish yellow and the swollen distal 
portions gray-brown to blackish brown and successively 
darker, remainder of antennae nearly or quite blackish 
brown and concolorous with tube, the pedicel of VII some- 
what paler. 
Head about 1.36 times as long as greatest width, which 
is at middle of cheeks ; the latter decidedly rounded to near 
eyes, sharply constricted just behind eyes, and converging 
in basal third, with a somewhat wider and distinct basal 
collar ; at this level the head is only slightly broader than at 
the postocular constriction ; width across eyes about 0.9 the 
greatest width across cheeks ; the latter roughened as seen 
from above because of rather heavy lines of reticulation 
which form distinct polygons over the whole surface of 
head, and with six pairs of pale, curved, expanded setae 
about 18q in length; postocular setae expanded and curved 
at tip, 27(i long; a slenderer but otherwise similar pair of 
occipital setae, 27|i long and 50q apart, situated about mid- 
way between postoculars and base of head ; vertex and occi- 
put elevated, the former somewhat excavated in front for 
the reception of the forwardly-directed median ocellus, 
with a pair of strong postocellar setae which are similar to 
occipitals, and a slender pointed pair directly between the 
vertical pores and the median ocellus. Eyes rounded, 
strongly protruding, coarsely facetted, only 0.22 as long as 
head, their length distinctly greater than their width, which 
is approximately half their interval. Ocelli subequal, pos- 
terior pair much farther apart than their distance from an- 
terior ocellus, their diameter (15p) about half their inter- 
val; median ocellus with its posterior margin in the same 
transverse line as anterior margin of eyes. Antennse about 
twice as long as head, the four basal segments marked with 
weak lines of reticulation which are most distinct on II; 
III-VII subclaviform, the pedicels of about equal width but 
successively shorter on IV-VII, VIII narrowed at base ; sense- 
cones long and slender, disposed on inner (and outer) 
surfaces of segments as follows: III 1 (1), IV 1 (1), V 1 
(1+ 1 ), VI 1 (1+ 1 ) ; setae long and slender, the major dorsal 
ones on II- VI knobbed. Mouth-cone short and broadly 
rounded, about attaining middle of prosternum. 
Prothorax along median line of pronotum about two- 
