672 
The Philippine Journal of Science 
1921 
psammophila does to Psammophila, and as a group has long been 
recognized, but no one seems to have given it a name. To me 
it seems that there is a distinct use for a name for such a group. 
Genotype, Sphex ( Ceratosphex ) bakeri sp. nov. described 
below. 
Sphex (Ceratosphex) bakeri sp. nov. 
F emale. — Length, 33 millimeters ; length of the anterior wings, 
20 millimeters. Robust ; head somewhat wider than the thorax, 
narrowing behind the prominent eyes, mandibles large, with a 
large inner tooth somewhat before the middle; clypeus convex, 
with a shallow median impression before apex, the surface with 
large, well-separated punctures (except around impression), the 
apical margin truncate ; inner margins of the eyes very slightly 
diverging below ; frons shining, convex, parted by a median im- 
pressed line, with rather small, separated punctures ; ocelli in a 
low triangle, completely surrounded by an impressed line ; post- 
ocellar line distinctly shorter than the ocellocular line; vertex 
convex, with small separated punctures which are closer in the 
area behind the ocelli ; third antennal joint but little shorter than 
the two following, apical joint truncate, subequal in length to 
the preceding; pronotum narrow, sloping anteriorly, with only 
small, widely scattered setigerous punctures ; mesoscutum opaque, 
with close, rather small punctures ; tegulse polished ; scutellum and 
metanotum convex, with irregular, longitudinal, raised lines; 
propodeum coarsely reticulate, laterally with a tendency to 
striate reticulations, sharply truncate posteriorly, the lateral 
dorsal area (behind the spiracle) with distinct transverse rugae; 
mesepisternum with distinct, large, rather close punctures; legs 
strongly spined, the posterior basitarsus subequal in length to 
the two following joints; cubitella postfurcal; third cubital cell 
more than twice as long on radius as on cubitus ; second abscissa 
of radius shorter than the first and also shorter than either the 
second or third abscissa of cubitus; second abscissa of cubitus 
somewhat shorter than the third; abdomen shining, the first 
tergite distinctly longer than the second ; second tergite distinctly 
widening beyond the spiracles (that is, beyond middle) . Black, 
with black pubescence; caudal margin of prothoracic tubercule 
fringed with white hairs ; wings black, with a strong violaceous 
reflection. 
Type locality. — Mount Maquiling, Laguna, Luzon. 
Type.— Catalogue No. 23636, United States National Museum. 
