145 
is quite evidently not so wide as long, and its sides 
are strongly rounded. The hinder portion of the 
head is closely and very finely punctured ; the surface 
of the thorax is opaque with excessively minute 
punctuation, and has also some larger punctures (but 
even these are fine) the cavities of which, under a 
strong lens, are shining ; on the post scutellum the 
system of larger punctures seems to fail ; the meta- 
thorax is more shining, and its sculpture seems to 
consist of a mixture of very fine granulation and 
some oblique wrinkles ; the upper surface of the hind 
body is not very shining, and its sculpture consists 
of excessively minute punctuation invisible except 
under a very strong lens ; while the under surface is 
similarly punctured with the addition of a system 
of much larger but very feeble shallow punctures. 
The female (save in the usual respects) does not differ 
much from the male ; it is larger, however, and the 
colouring of its head consists in a slender yellow line 
along the internal margin of the eyes. 
I obtained three specimens of this little insect on the 
W estern slopes of Mauna Loa, Hawaii, at an elevation 
of about 6,000 feet, in May. 
7. — Prosopis coniceps, sp. nov. 
JSliger, flavo-variegatus, lounctatus ; caiylte hrevi ijone 
antennas tumidulo ; dypeo antice rotundato ; alls liyalinis. 
d antennarum articulo basali coin]presso, minus elongato. 
Long, d 6| mm. 
In this species the markings on the head are peculiar, — = 
the anterior third of the clypeus is entirely yellow, 
the posterior quarter entirely black, the apical yellow 
being produced backwards in the middle of the 
intervening space as a broad band, while the basal 
black is narrowly produced forwards on either side of 
it ; there is also a large yellow triangle on either side 
