314 The Philippine Journal of Science 1921 
and the absence of tubercles on frons near the top of inner eye 
margin. 
Female. — Length, 8 millimeters. Clypeus gently convex, the 
surface finely punctured ; apical margin with two obscure 
median teeth; face sculptured like the clypeus, without a trans- 
verse carina; a strong, blunt, ridgelike tubercle between bases 
of antennae; frontal carina weak but complete; frons, vertex, 
and posterior orbits smooth, shining; postocellar line slightly 
shorter than ocellocular line; scape gently curved; antennae 
subclavate; third joint one-third longer than fourth; pronotum 
subcarinate anteriorly, the lateral angles rounded; mesoscutum, 
scutellum, metanotum, and mesepisternum smooth, shining; 
parapsidal furrows weak, about one-third the length of scutum ; 
inclosed area of propodeum broadly triangular, longitudinally 
rugose ; posterior surface and sides of propodeum finely obliquely 
rugulose; posterior surface with a median sulcus; abdomen 
smooth, shining; postpetiole nodose; petiole curved, cylindrical, 
and as long as the posterior legs to near apices of femur; 
pygidial area obsolete; venation typical, except for the inter- 
stitial first recurrent and first intercubitus ; second cubital cell 
trapezoidal; third intercubitus strongly angulate above middle. 
Head black; mandibles, except apices, and palpi yellow; scape 
and pedicellum yellow, flagellum piceous, ferruginous beneath; 
thorax yellow; a median spot on scutum, a small spot before 
tubercle, a spot below each tegula, mesepimeron, a spot before, 
inclosed area of propodeum and sulcus of posterior surface black ; 
legs yellow, the posterior pair red below trochanters; abdomen 
red. Wings, hyaline, iridescent; venation dark brown. Face, 
clypeus, inner margins of eyes to vertex and posterior orbits 
with dense, silvery or slightly yellowish pubescence; thorax 
with sparse, gray hair. 
In the paratype there is a small black spot on the side of the 
mesoscutum. 
Type locality. — Los Banos, Laguna, Luzon. Described from 
two females forwarded by C. F. Baker. 
Type. — Catalogue No. 22840, United States National Museum. 
Diodontus nmltipictus sp. nov. 
Allied to Diodontus luteopictus, but can be distinguished by 
the characters used in the preceding key. 
Female. — Length, 8.5 millimeters. Clypeus flat, the apical 
margin narrowly depressed and truncate; face without a 
transverse carina; frontal carina strong, especially prominent 
