22 PROCEEDINGS OF THE NATIONAL MUSEUM vol.66 



the first is a little yellow on the sides at the posterior margin ; fourth 

 segment with a rather small yellow spot on each side at the anterior 

 margin; hairs and bristles of the abdomen wholly black. Hypopy- 

 giura (fig. 21) and its appendages wholly black, except two small 

 pointed appendanges below the outer lamellae and a central filament, 

 •which are yellow ; outer lamellae rather small. 



Coxae black almost to their tips, their hair and bristles wholly 

 olack, anterior pair with a row of long slender bristles or hairs from 

 their tips almost to the base. Fore femora black with base, tip and 

 apical half of lower surface yellow; middle pair yellow with basal 

 third slightly brownish below ; posterior pair yellow, blackened above 

 on apical half or more, posterior surface of fore femora with abundant 

 long, black hair; middle femora with two rows of long black hairs 

 on lower anterior surface and one row of still longer black or brown 

 hairs on lower posterior surface. All tibiae yellow, tips of posterior 

 pair slightly darker. Fore and middle tarsi blackened from the sec- 

 ond joint; fore tarsi with its joints as 37-15-12-9-9; joints of middle 

 tarsi as 59-27-18-11-10. Hind tarsi wholly black, its joints as 40- 

 39-22-13-9. Calypters yellow with broad black tips and black ciliac 



Wings grayish, veins slightly bordered with brown ; third vein con- 

 siderably bent backward at tip ; last section of fourth vein bent be- 

 fore its middle ; parallel with third at tip, ending nearly as far back 

 of the apex of the wing as the third vein does before that point; 

 last section of fifth vein one and one-third times as long as the cross- 

 vein. 



Described from one male which I took at Berkeley, California, 

 May 15, 1915. Type in the author's collection. 



This form is very much like calif ornica^ new species, in the form 

 of the hypopygium and its appendages and in general color. It dif- 

 fers in being larger, in the color of the femora, in the proportionate 

 length of the joints of the tarsi ; the fore coxae are not at all yellow, 

 except at tip; the first abdominal segment has a little yellow on its 

 sides, and the last section of the fourth vein of the wings is a little 

 more bent, the bend is also a little nearer the crossvein. 



17. ARGYRA ALBICANS Loew 



Argyra albicans Loew, Neue Beitr., vol. 8, p. 45, 1861; Smiths. Misc. Coll., 

 No. 171, p. 125, 1864. 



The joints of the fore tarsi in this species are as 58-16-10-7-9; 

 those of middle tarsi are as 62-26-19-10-9; and those of posterior 

 tarsi as 35-37-25-12-10. 



This is an abundant species in the Eastern States ; it was described 

 from Washington, District of Columbia. I have seen specimens from 

 Cohasset, Massachusetts, taken May 29; Blue Hills, Massachusetts, 

 July 16; Auburndale, Massachusetts, August 13; Middletown, Con- 



