1983] 
Willey & Brown — Genus Myopias 
265 
antennomeres longer than wide; funiculus I about twice as long as II. 
Mandibles robust, rather short, with a sharp apical tooth and a 
minute adjacent companion tooth; one subapical and one subme- 
dian tooth each isolated, blackened and rounded; basal angle pres- 
ent, but low and rounded. Oblique basal groove and its lateral 
continuation very distinct. Labral lobes each bearing a delicate, 
upturned apical tooth, practically impossible to see without dissec- 
tion. Palpi segmented 3,3; basal maxillary palpomere short and 
broad, last two subequal in length, but apical broader, fusiform, 
with apical sensillum; labial palpomeres all slender, the apical 
slightly longer and thicker than the basal two, and with an apical 
sensillum. 
Trunk robust, divided by a broad and deeply impressed metano- 
tal groove into a promesonotal portion and a shorter propodeal 
portion. Mesonotum convex, rising above pronotum, sloping cau- 
dad, nearly 2/3 as long as propodeal dorsum; propodeum weakly 
convex, but with a feebly impressed area in the posterior half of its 
dorsum (variably distinct in paratypes); dorsum rounded unevenly 
into declivity and with a feeble median impression at the point 
where they meet; declivity more or less flat, with lateral boundaries 
distinct, almost submarginate. 
Petiolar node distinctly higher than long, its curved dorsal face 
highest behind the midlength; anterior face in side view straight or 
feebly concave, sloping caudad; posterior face convex in side view, 
sloping cephalad. In dorsal view, anterior cornuae of node very 
prominent; node widest behind, with convex sides, slightly wider 
than long. Postpetiolar (gastric I) segment slightly broader than 
long; its anterodorsal border feebly concave in the middle; gastric II 
a little wider than I, but equal in depth in side view after a distinct 
constriction between the two that is boldly scrobiculate. Sting long 
and sharp, gently upcurved (found extended up to 0.60 mm in var- 
ious specimens. 
Sculpture mainly smooth and shining, with mostly inconspicu- 
ous, separated, piligerous punctures, distributed as follows: on dor- 
sum of head, on each side of midline, numerous small ones, 
averaging about 0.01 mm in diameter, or smaller, mostly in the 
space between eye and median sulcus; small punctures distributed 
sparsely on mandibles, back and sides of head, fore coxae, prono- 
tum, mesonotum, and gastric tergum II. Moderately coarse, often 
