40 
Psyche 
[March- June 
A single specimen of this new species (type, M. C. Z. no. 
22,510) was captured at Malaita, Auki, Solomon Islands, by 
Dr. W. M. Mann. 
This species is very like N. coeruleipennis Fairm. 1 from 
the Fiji Islands, but is specifically distinct by the following 
characters. 
1. The front without a depression. 
2. The depressions of the base of the pronotum. 
3. Sides of the pronotum sinuate before the anterior angles. 
4. The color is different. N. coeruleipennis Fairm. has the 
head, the pronotum, and the lower surface, except the 
last segment at apex, cupreous, the elytra purplish with 
apex blackish. 
Genus Melobasis C. & G. 
Melobasis albertisi Thery 
I described this species in the Ann. Mus. Civ. Stor. Nat. 
Genova, LI. (1923), p. 7, from four 9 $ specimens captured 
at Kataw, N. Guinea, by M. d’Albertis. A specimen of this 
species in the Museum of Comparative Zoology (Harvard 
College Collection), captured at Humboldt Bay by Dr. 
Thomas Barbour, is a ; it differs from the 9 type in its 
slender form, the frontal punctures very close and confluent, 
the pubescence thicker on the occiput, the posterior angles 
of the pronotum less divergent, the intervals between the 
elytral striae slightly convex, the anterior femora dull, the 
abdomen less pubescent and with green reflections, and the 
last abdominal segment longitudinally wrinkled. Perhaps 
this form is a new variety. 
Subgenus Diceropygus H. Deyr. 
Diceropygus stevensi n. sp. (PI. IV, Fig. 8) 
Length : 15 mm. ; breadth : 5 mm. — 9 . Aeneous, the punc- 
tures green and shining; tarsi bluish, claws steel blue and 
more shining; labrum green. Elongate, distinctly more at- 
tenuate posteriorly than in front. Elytra as wide at the 
shoulders as at the posterior third of their length. 
1 Nosotrinchus simondsi Obb., Sbornik II., 1924, p. 13, is a synonym of 
N. coeruleipennis Fairm. 
