26 J\lr. T. 1). A. Cockoicll on /?<;«. 



agree with llobeitson's very brief description of his harhaiua. 

 I do not positively assert that the species are the same, not 

 liaving compared specimens. 



PrOSOPIS. 



At Pecos, New Mexico, June 9, 1003, I collected at flowers 

 of Salix four males, whicli j)rove to be two F. mesilhe^ (Jkll,, 

 and one each of P. divergens^ Ckll., and P. nsinina, Ckll. & 

 Casad. P. divergens is new to New Mexico ; the specimen 

 has clearer wings than the tyj)e. 



PSEUDOPANURGUS, Ckll., 1897. 



Prolandrenopsis, Crawford, 1903, is the same genus. 

 P. fraterculus (Ckll.) is apparently a valid species, and not a 

 synonym of ruyosus as asserted by Robertson. 



Pneudopanurgus pectidellas, sp. n. 



? . — Length slightly over 7 mm. 



Similar to F. fraterculus, but differing as follows: — Facial 

 fuveae longer and less divergent from the eye-margin above ; 

 tips of antennas bright ferruginous ; vertex very closely 

 jtunctured all over, without tubercles, but with the sides 

 laintly elevated ; mesothorax narrower, much more closely 

 ]tunctured; wings much paler, strongly dusky only at apex; 

 stigma smalkr ; tiie very short basal enclosure of metathorax 

 strongly transversely ridged, with the area below it strongly 

 shining ; abdomen not so broad. From P. mexicanus 

 (Crtsson) it differs by having the abdomen hairy only at tiie 

 extreme apex ; from P. scaber (Fox) by having the clypeus 

 densely punctured all over, without a central line, the 

 dorsulum closely punctured, &c. The tegulre have a dark 

 reddish spot, and the hind border of the prothorax and 

 tubercles are margined with short but dense white pile. Tlie 

 laljium is shining, with a delicate longitudinal keel. 



Hub. JSoledad Canon, Organ Mts., New ^lexico, at flowers 

 cif lectis imiiyoaa, o ? , Aug. 15 (C. 11. T. Townscnd). 

 They were taken in conij)aiiy with Perdita solitaria, Ckll. 



Andrcna Vierecki, sp. n. 



? . — Length about 10 mm. 



Black, with oehraceous pubescence; antenuEe wholly black, 

 joint 3 about as long as 4 + 5; base of antennae surrounded 

 with long ochreous hair ; clypeus exposed, shining, strongly 

 but not ver}' denfccly punctured, vith a faint median ritlge ; 



