180 EMBRIK STRAND, 
Antennae as long as the head, tlıorax and median segment combined, 
the apical joints slightly arcuate beneath, inserted much nearer to 
each other than to the eyes; the space between the base of the 
antennae and the eyes clothed with white pubescence; the head 
short and sharply narrowed behind the eyes. Pronotum narrower 
than the head, shining, very shallowly and finely punctured, narrowed 
anteriorly, the anterior margin raised with a transverse groove behind 
it. Mesonotum and pleurae finely and closely punctured; scutellum 
very sparsely punctured. Median segment as long as the mesonotum 
and rather slender, rounded, shining and almost smooth, with a short, 
shallow, longitudinal sulecus from the base. Abdomen fusiform, 
shining and almost smooth, the three apical segments and the ventral 
segments sparsely punctured at the base and thinly clothed with 
grey pubescence; the seventh dorsal segment more closely punctured, 
with a low longitudinal carina; the hypopygium rounded and ciliate, 
projecting beyond the dorsal segment. Second ceubital cell as long 
as the third on the radial nervure, the first and second recurrent 
nervures received near the middle of the second and third cubital 
cells. 
Shining black; the basal half of the mandibles, the clypeus and 
two small spots between the antennae pale cream colour. Wings 
hyaline, the apical half of the anterior wings fusco-hyaline, flushed 
with purple; nervures black. 
Length 11 mm. 
Hab. Bogota. 
Described from three specimens. 
Allied to öridipennis Sm. and clypeatus Kuuc but differs much 
from both in the form of the elypeus and mandibles. 
Ornepetes semieineta n. SP. 
&. Mandibles bidentate, not elbowed. Clypeus sparsely punc- 
tured, a little produced in the middle, shallowly emarginate and 
bidentate at the apex. Front closely punetured, the punetures on 
the vertex much finer and almost obsolete. Interantennal carina 
truncate at the apex, with a very short longitudinal carina in the 
middle; antennae as long as the thorax and median segment combined, 
the apical joints feebly arcuate, inserted further from each other 
than from the eyes. Thorax a little narrower than the head, punc- 
tured, more finely and shallowly on the pronotum than elsewhere, 
the anterior margin of the pronotum straight and raised; scutellum 
