8 
Psyche 
[March 
Megistops melanoloma n. sp. 
(Plate 1, figure 2) 
Between 3 and 3.5 mm. in length, oval, feebly shining, 
head, undersurface, femora and part of tibiae dark, pro- 
thorax pale orange yellow, elytra also pale with a black 
sutural and lateral marginal vitta, a black spot on humerus 
and a large median spot common to both elytra. 
Head with the eyes very little separated on the occiput, 
deep brown, very finely and densely punctate. Antennae 
dark brown with the three basal joints pale yellow. Pro- 
thorax at base twice as wide as long, very finely and 
densely punctate, pale orange, in one specimen with five 
faint spots. Elytra pale orange, finely and faintly punctate, 
with black markings on humeri, black sutural vitta, and 
black lateral marginal vitta widening at apex and joined 
with sutural dark vitta; in the middle of each elytron an 
elongate black spot in the form of a short vitta. Body be- 
neath and femora black with deep brown coxae and tibiae 
streaked with black, tarsal joints deep brown. Length 3.2- 
3.4 mm. ; width 2 mm. 
Type data. — Holotype male (U.S.N.M. Cat. No. 60,933), 
collected in May by G. L. Harrington, at Encuentro, Dept. 
La Paz, Bolivia. 
Other material. — One other specimen also collected by 
G. L. Harrington, at Calisaya, Rio Bopi, Bolivia. 
Remarks. — This species is closely related to M. vandepolli 
Duv. described from Santarem, on the Amazon River, and 
may be only a race of that species. But because of the 
wide difference in locality coupled with the slight differences 
in structure, such as the more closely placed eyes and the 
more narrowed tip to the aedeagus, as well as the darker 
coloring of the legs and elytra, I believe this is distinct. 
Megistops argentinensis n. sp. 
(Plate 1, figure 4) 
From 2. 5-3. 5 mm. in length, oval, feebly shining, yellow 
brown with deeper brown markings on the elytra, a sutural 
