206 Journal New York Entomologigal Society. [Voi. vi. 
reservation. The species is named after Lieut. Stottler, the Indian 
Agent, whose work among the Mescalero Apaches excited our strongest 
admiration. P. stottleri is very near to townsendi (which occurs on a 
different Bigelovia ), but six 9 townsendi were compared with it, and 
none show any tendency to intergrade. 
Perdita chrysophila, sp. nov. 
g , Length 5.5 mm. Head and thorax very dark bluish green, scutellum and 
clypeus black, supraclypeal area seneous. Abdomen piceous-brown above and below, 
the hind margins of the segments rather broadly hyaline; apex orange. Labium 
dark brown. Mandibles black with the tips dark rufous. Scape black, flagellum 
very dark brown. Tegulre pale brown. Wings milky-hyaline ; costal nervure, mar¬ 
gin of stigma, and radial nervure sepia-brown; the other nervures pallid. Pubes¬ 
cence dull white. Legs piceous black, the tarsi becoming brown. 
Head very large, subquadrate; cheeks unarmed, shining, not very pubescent. 
Front shining, microscopically tessellate, with distinct but very sparse punctures. 
Face tolerably hairy. Thorax shining, tolerably hairy. Mesothorax and scutellum 
with distinct but very sparse punctures. Metathorax shining, very obscurely sculp¬ 
tured. Marginal cell with its poststigmatal portion much the longest; its end 
squarely truncate. Second submarginal narrowed more than half to marginal 
Third discoidal excessively weak or wanting. 
Habitat : Organ, N. M., 5100 ft., September 28th, on flowers of 
Verbesina encelioides , one taken others seen. Near to P. arcuata Fox, 
to which it runs in table of Perdita , but it does not have the pale color 
on mandibles and anterior tibiae. 
Two other species of Perdita were taken on the trip, namely : P. 
albovittata, Ckll., Parker’s Well, October 7th. Three 9 9 visiting 
flowers of Baileya multiradiata. 
P. spharalcece Ckll. Whitewater, October 6th, one 9 on Spha- 
ralcea angustifolia. Organ, September 28th, three 9 9 at flowers of 
Mentzelia , with no Spharalcea near. The occurrence of this species on 
Mentzelia is contrary to all previous experience, and surprised me much. 
I will take this opportunity of stating that the flowers visited by P • 
callicerata and P. solitaria have now been examined with care; the 
former visits Baileya multiradiata at Las Cruces, the latter Pectis pap- 
posa in Soledad Canon. _ . 
ested, but I may as well give a list of determinations just received from Mr. Coquil- 
lett through Mr. L. O. Howard. (1) On the Bigelovia at store below Agency, with 
Perdita stottleri: Exoprosopa sp., Phorbia sp. (2) On the Bigelovia at camp just 
below Agency, Oct. 2: Sparnopolius fulvus Wied., Phthiria diversa Coq., Lordo- 
ius diversus Coq., Exoprosopa caliptera Say, Anthrax syrtis Coq., Odontomyia ni- 
grirostris Loew, Pegomyia communis Walk., Sapromyza vulgaris Fitch, and Sar- 
cophoga sp. Mr. Linell has also identified an CEcanthus, which was rather common 
on the Bigelovia; just below the Agency, October 2d, as (E. fasciatus. T. D. A. C. 
