MORGAN" HEBARD 
157 
CARRIKERELLA*® new genus 
This genus is related to Pogonogaster Rehn, belonging to that 
section of the IMiopteryginae, as previously understood, which 
we believe Giglio-Tos has rightly separated as the Oligonicinae. 
In the great majority of features these genera agree closely, 
Carrikerella being strikingly distinguishable ])y having on the 
head a heavy cylindrical horn mesad above the ocelli, with apex 
bifurcate, while all of the pronotal and abdominal projections, 
and i)articularly those of the proximal abdominal tergites, are 
less highly specialized. 
No other Oligonicine is known having the head with vertex 
produced, this being a feature frequent in Old World Enquisids 
and Oreobrotrids, and found in the one South American member 
of the latter sul)faniily, Callibia diana (Stoll), in which species 
this production is similar, except in being much heavier, higher 
in position, not carinate dorsad and more shallowly bifid at the 
apex. 
The genus is monotypic. Genotype. — CarrikereUa cerato- 
phora new species. 
Description of (ienus. — (Female alone known.) Head ap- 
parently^' slight I3" broader than deep, occiput raised above eyes, 
its outline nearly straight, showing very feeble convexity, with 
well rounded juxta-ocular portions which are more elevated than 
in Pogonogaster; frons bearing a heavy cylindrical horn, which 
has a tlelicate longitudinal carina dorsad and is bifid at apex; 
ocelli minute; facial scutellum moderately transverse (rlepth 
one-third width in CarrikereUa, scarcely more than one-cpiarter 
width on Pogonogaster), its surface with a weak vertical median 
carina terminating near the ventral margin in a small node. 
Pronotum very elongate, very feebly sigmoid in lateral aspect, 
supra-coxal expansion moderately well developed; dorsal surface 
of collar bearing a meso-proximal node and a median swelling; 
shaft with a disthict medio-longitudinal carina and a paired node 
In honor of our friends, Mr. and Mrs. M. A. Carriker, .Jr., on one of 
whose field trips, to secure additional knowledge of the Ornithology of north- 
ern South America, the specimen upon which the present remarkable genus 
is based, was taken. 
The eyes are crushed somewhat in the only specimen available. 
