812 THE AMERICAN NATURALIST. [VoL. XXXVI. 
Other observations are: /Vomada gutterrezig Ckll., on Ver- 
besina encelioides; Naomia foxi D.T. and Exomalopsis solani 
Ckll. on Solanum eleagnifolium ; Augochlora neglectula Ckll., 
at Parthenium 2ncanum. 
ROMEROVILLE. 
A locality about six miles from Las Vegas. In Entomological 
News, 1901, p. 40, five insects are recorded from Ribes, sf. at 
this place. It can now be stated that the Ribes is R. Zeptan- 
thum veganum Ckll. (Proceedings of the Biological Society of 
Washington, 1902, p. 99). 
Las: VEGAS. 
(1) yeas verticillata L. This is very attractive to flies; the following 
e taken from its flowers: Syritta pipiens L. (July 3, N. Stern), 
paes latifrons Loew (July 3, M. Winters), Echinomyia algens 
Wied. (July 21), Peleteria iiis Fab. (July 21), Myiophasia 
ænea Wied. (July 21). Lygeus reclivatus Say is also common on 
the plant. Robertson collected 115 species of insects from this plant 
in Illinois. - 
(2) ger oct Nutt. The yellow-flowered currant, common both 
and cultivated in the vicinity. On May 12 Loyola Dillon and 
Olive Barnes collected on the flowers four species of bees and 
one wasp: Bombus nevadensis aztecus Ckll. 9, Halictus coriaceus 
Smith 9, H. armaticeps Cr. 9, H. pruinosus Rob. 9, Odynerus, sf. 
On May 9 of last year a 9 Synhalonia frater, Cr. var. (new to New 
. Mexico), was taken at the flowers. This and the Bombus can prob- 
ably get some nectar, but the Halicti only get pollen. 
(3) Anogra albicaulis is a large white evening primrose, doubtless intended 
Tor moths, but on May 29 Eldon Tuttle and Leo Tipton discovered a 
minute new bee of the genus Perdita visiting its flowers at Las Vegas. 
— Perdita anogre, n. sp, 8. Length about 33 mm.; head and thorax 
. very dark olive green; cheeks unarmed; face below antenna all 
bright. yellow except the clypeal dots, yellow not extending upwards 
n middle line, but at sides going a little above the antennz and then 
terminating abruptly, just touching the facial fovea, making slightly 
. more than a right p with the eye ; m pale green, the lower 
half of P. efi 
th y bordered with yellow; face 
* 







and mesothorax not conspicuously hairy ; antennae pale orange, dark 
brown above as far as third joint of flagellum ; vertex and mesothorax 
bcne sculptured, but rather shining ; tubercles light — pleura 

