300 
Psyche 
[December 
segment should serve to distinguish this species. The structure 
of the 9th abdominal tergite of the male is interesting. The same 
process occurs in P. antennatus Hood but is lacking in P. pallipes 
Hood. 
Trichothrips transvaalensis sp. nov. 
Female, forma hrachyptera . — Length about 1.7 mm. Color 
brown, with pterothorax somewhat lighter and head yellow; 
femora concolorous with body, except fore pair, which are yellow 
apically; tibi* paler than femora, mid and hind pairs shaded 
with brown; tarsi yellow; tube brown, paler at extreme base 
and in apical half; antennae dark blackish brown, excepting 
segments 1, 2 and 3, which are pale brown, with base of 1, apex 
of 2 and pedicel of 3 pale yellow; subhypodermal pigmentation 
red. 
Head slightly longer than broad, widest at middle of cheeks, 
abruptly rounded to eyes and slightly converging to base of head ; 
occipital region faintly subreticulate and with the usual bristles 
on cheeks rather stout and prominent; postocular bristles 
less than half as long as head, pointed. Eyes small, directed 
forward, less than one-fourth the length of the head, and about 
five-eights as wide as their interval. Ocelli usually wanting, but 
sometimes minute and barely visible, in which case the anterior 
one is situated well down toward antennae, and the posterior 
ones opposite middle of eyes. Antennae distinctly more than 
twice the length of the head; segment 1 tapering to apex; 2 
much longer and narrower than 1; 3 the longest, subconical; 
4-8 successively shorter and narrower; 8 lanceolate, pedicellate, 
pedicel somewhat dilated at base; sense cones: 3, 1-2; 4, 2-2; 
5, 1-1 + 1; 6, 1-1 + 1; 7 with one on dorsum near apex. Mouth 
cone reaching nearly across prosternum, semicircularly rounded 
at apex, tip of labrum about attaining that of labium. 
Prothorax nearly 0.9 as long as head and (inclusive of coxae) 
about twice as wide as long; anterior marginal and anterior 
angular bristles about half as long as postoculars; others long, 
pointed, midlaterals and inner pair at posterior angles about as 
long as postoculars, the other pair shorter but longer than coxals. 
