208 Annals Entomological Society of America [Vol. V, 
with the submedian cell longer than the median; subdiscoidal vein 
arising near the lower angle of the second discoidal cell; recurrent 
nervure inserted near the base of the second cubital cell; second section 
of the radius a little longer than the first; second transverse cubitus half 
as long as the first. 
Manaos, Brazil (Mann and Baker). 
This species is very distinct on account of the disposition of 
its peculiar pale color and sharp black maculation. 
Subfamily CENOC@LIINE 
Cenoccelius tricolor sp. nov. 
7 
Female. Length 9 mm., ovipositor 7 mm. Head above the level 
of the antenne, spot above hind coxa, four posterior legs and abdomen 
above, except on the sides, black; remainder of head and thorax honey- 
yellow except the metanotum behind which is whitish, and also the 
anterior legs, except most of the femora and the apical tarsal joint. The 
abdomen is maculate with yellowish white as follows: hind angles of 
petiole; a band along each side of segments 3-7 which extends inwards 
half way to the median line along the sutures; these incisures narrow 
and pointed except at the base of the third segment where they form a 
broad, widely interrupted transverse basal band. Sides of abdomen 
whitish; ventral plates black. Wings blackish with a hyaline streak 
crossing at the insertion of the recurrent nervure. Head twice as broad 
as thick, arcuately emarginate on the occiput; vertex with a deep 
median depression extending down the front to the base of the anten- 
ne. The median ocellus lies at the bottom of the depression and the 
lateral ones on the edge, a carina extending downward from each to the 
level of the antenna; sides of front and face sparsely punctate; middle 
of face confluently so; clypeus punctate like the face. Eyes small, 
rounded oval, as long as the malar space. Posterior edge of head with 
a high raised margin. Antennz 382-jointed; scape cylindrical, three 
times as long as thick; first flagellar joint slightly longer than the 
second which is three times as long as thick; joints near the middle twice 
as long as thick. Mesonotum with coarse punctate parapsidal furrows, 
the middle lobe prominent, twice as long as the lateral ones and pro- 
longed backward between the convergent furrows as a raised line. 
Scutellum with a broad impressed line at the base composed of four 
large foveee. Metathorax above irregularly reticulate; behind and on 
the sides rugose reticulate. Propleura sparsely punctate; mesopleura 
smooth with a crenulate mesoépisternal furrow, a carinate posterior 
margin and several foveze above. Abdomen polished; first segment 
one-third as broad at base as at apex, longer than the width at apex 
(exclusive of the white corners); with a number of curved carinze on 
each side of a median smooth space, the median pair of carine attain- 
ing the base and the lateral pair the apex of the segment; second seg- 
ment more closely striated except around the edges and on a median 
stripe which is smooth and slightly elevated into an obsolete tubercle 
anteriorly; following segments smooth and highly polished. Legs 
