V0.1487. NORTH AMERICAN DIGGER WASPS— FERNALD. 363 



Oils rather fine punctures on the anterior half, nearly .smooth behind, 

 where it is golden sericeous, ])earino- long, yellow hairs. 



AhiJoinen. — Black and ferruginous, the distribution of the colors 

 variable; above, whitish sericeous, especially in some lights, and with 

 a few short, pale hairs on the last four segments, particularly at the 

 sides, and with scattered punctures; beneath, with a few punctures on 

 each segment and short, pale hairs; fourth and fifth ventral plates 

 somewhat emarginate l)ehind; terminal plate quite evenly, rather 

 coarsel}' punctured. 



Wings. — Hyaline, slightly fuliginous along the outer border, tinged 

 with yellowish, the veins pale ferruginous; forewing slightly fuli- 

 ginous in the first and second cubital cells; discoidal vein of the hind 

 wing interstitial; cubital vein developed only a short distance beyond 

 the transverse cubital vein; teguhe pale ferruginous varied with paler. 



Legs. — Coxje black; trochanters black or black and ferruginous; 

 femora black or black and ferruginous; tibia3 and tarsi pale ferru- 

 ginous; coxa^ sericeous in places, with fine punctures and long, yellow 

 hairs; trochanters the same; femora with many long, yellow hairs; 

 particularly behind and beneath, the hind femora the least hairy; tibije 

 and tarsi yellow sericeous, their spines brownish; hind til)i!e densely 

 yellowish sericeous behind; claws pale ferruginous and black, the dis- 

 tribution of these colors vaiying. 



Male. — Differs little from the female, but is usually more hairy, 

 liable to have less 3'ellow or ferruginous on the bod}^ and legs, and 

 shows the usual sexual distinctions. 



Length. — Females, 15-18 mm.; males, 15-17 mm. 



This pretty species is western and southwestern in its distribution. 

 1 have seen specimens from Parker and Fort Collins, Colorado, taken in 

 June and July; from Siskiyou County and other (not indicated) parts 

 of California; from Lower California, Nevada, and New Mexico. The 

 records from this State (mainly from Prof. T. D. A. Cockerel!) are as 

 follows: HighroUs, N. M., from Ma}^ 20 to June 14, '02; Pio Ruidoso 

 ab. 6,500 ft. Wh. Mts., July 19 and 22, on flowers of Ehus gJahra; Rio 

 Ruidoso ab. 7,500 ft. Wht. Mts., August 3; and La Cueva ab. 5,300 ft. 

 Organ Mts. , September 5, on flowers of Llppia lorigJdlL Patton states 

 that it is also found in Florida, but, in the absence of any specimens 

 from intermediate points and any other record from that State, I feel 

 that there is likely to be some error in this record. 



Kohl regard 61 elegans as a variet}^ of /larrisi, a view which I am 

 not prepared to accept at present. The former has a different distri- 

 bution from the latter and is very fixed in its characters, and at pres- 

 ent I should be as ready to regard it as a subspecies of C. aurljjes as 

 of C. harrisi, at least until more evidence than we now have is forth- 

 coming. At all events it seems that our knowledge of the species is 

 yet too slight to unite it with any other. 



