147 
Long. S 5J-8 mm. $ 7 mm. 
The punctuation does not appear to differ much from that 
of P. BlachhuTYii, Sm., which this insect resembles, 
also by its scarcely less elongate head, and the only 
slightly rounded apex of the clypeus. In the male 
the face is entirely (or almost entirely) yellow in 
front of the antennse, but the yellow colouring does 
not pass the antennse backwards. The flagellum is 
testaceous on the underside, in some specimens en- 
tirely ferruginous. The front tibiae of the male are 
testaceous in front. In both sexes the hind body is 
reddish (in some specimens quite red). The basal 
joint of the antennse in the male is strongly com- 
pressed, its flat face being scarcely longer than broad. 
The hind body beneath is almost impunctate and 
very shining in the same sex, while across each 
segment runs a transverse, rounded, and sinuated 
ridge, more strongly developed in some specimens 
than in others. 
I possess two specimens of this insect from Maui and five 
from Lanai. One of them (taken in company with 
the males) is a female, and closely resembles the 
female of P. Blachhurni, Sm. 
9. — Pkosopis hilaeis. 
Frosopis hilaris, Smith, Proc. Lin. Soc., XIV., p. 683; 
Kirby, Ent. Mo. Mag., XYII., p. 85. 
The male has been well described by Mr. Smith. The 
female closely resembles it, being, however, some- 
what larger (9 — 9J mm. long). The colouring is 
precisely similar, save that bright yellow is replaced 
by obscure testaceous. The basal Joint of the 
antennse is, of course, not dilated, and the apical 
segments of the hind body present the usual sexual 
differences. 
