412 Prof. T. D. A. Cockerel! on 



Anthidium cognatum, Cresson, must be added to the fauna 

 of New Mexico, having been collected by Townsend in the 

 Organ Mountains, the male in Fillmore Canon, Aug. 29, the 

 female in Solodad Canon, Aug. 15. I had unfortunately 

 confused this also with maculifrons : the apex of the abdomen 

 is black (instead of ferruginous, as it is in Porterce), and is 

 very distinct in its lobes and teeth, as figured by Cresson; 

 the median spine of the last ventral segment is very short, 

 with a long posterior slope, its point directed forwards 

 (cephalad). 



Anthidium parosehe, Ckll., a small species of the same 

 group, was described only from the female, but I have two 

 males collected at Mesilla, June 17, at flowers of Parosela 

 scoparia, along with the original female. The male has the 

 same face-markings as male Porterce, but the yellow stripe on 

 the scape is rudimentary, the second joint of the flagellum is 

 ferruginous, and the flagellum thence to the tip is ferruginous 

 beneath (in Porterce it is black). The apical lobes of the 

 abdomen are yellow, with hyaline margins, but formed, as 

 also the central and lateral spines, much as in Porterce, The 

 ventral surface of the abdomen is black, and the last ventral 

 segment is not spined. 



Anthidium maculosum, Cresson, 1878. 



^ . — Marked like the female, except that the clypeus and 

 adjacent sides of face are yellow, the upper edge of the lateral 

 yellow, flat, and exactly on a line with the top of the clypeus. 

 Antennge wholly black. Apex of abdomen black, as also the 

 lateral spines, the whole quite of the type of A. cognatum^ 

 but the lobes long and very narrow, though blunt at ends. 



Ilah. Las Vegas, July 6, at flowers of Verbena Macdougali^ 

 1 $ {Wilmatte Porte?-). 



The above species are true Anthidium, congeneric with 

 A. manicatum of Europe. The second recurrent nervure is 

 interstitial with the second transverso-cubital, contrary to 

 what is stated by Ashmead in Trans. Amer. Ent. Soc. xxvi. 

 p. 78. 



DiANTHlDlUM, n. subg. of Anthidium. 



Type A. curvatum, Smith [interrujHum, Say). 

 Sexes of about the same size ; second recurrent nervure 

 passing beyond the tip of the second submarginal cell j apex 



