44 
Psyche 
[ March 
hind the middle, thence gradually narrowing to the mu- 
cronate apices, the suture dehiscent ; scutellar region 
scarcely depressed. Each elytron with ten rows of striate 
punctures, the punctures in about basal half coarse, deep 
and rasp-like; the four lateral striae are deep and distinct 
to the subapical fascia, below the antemedian maculation 
being coarsely, but simply punctate; in apical half the 
discal striae are very fine, finely closely punctate, and of 
the same extent as the lateral rows; the apices posterior 
to the subapical fascia are finely irregularly rugose, closely 
and densely punctate, the punctures variable from large to 
small, and feebly impressed ; in the basal half the first five 
interspaces bear setigerous pustules, and the second inter- 
val has a large prominent tubercle near base. Underparts 
and legs black, moderately clothed with long whitish hairs, 
those of the abdomen much shorter; the metasternum in 
large part densely clothed with depressed white hairs. 
Length 11 mm. ; width 3.3 mm. 
Type locality — Kigonzera, Lake Nyassa, Tanganyika 
Territory. 
Type, a male, in collection of the author. 
This species seems best assigned to the subgenus Oxystig- 
matium Kraatz. The structure of the antennae is, however, 
so entirely different from that of any species of Stigma- 
tium known to the writer that the desirability of creating 
a new subgenus for the reception of the species may, 
eventually, be found to be advisable. 
The subgenus Oxystigmatium contains, at present, two 
species, spinipenne Kraatz and cornutum Hintz, both of 
which were described from the same locality in northern 
Cameroon. S. mucronatum may be distinguished from 
both the preceding species by the presence of the prom- 
inent tubercle near base of each elytron : It may be sepa- 
rated from S. spinipenne by the latter having the first fas- 
cia median, narrow and strongly oblique, and the antennae 
and base of the femora brown. S. cornutum is much 
smaller (7.5 mm.), the fascia distinctly postmedian and 
flexuous, and the elytral apices are clothed with golden 
yellow pile. 
