36 



M. uRsus Poling. 



MegatUymus ursiis *Poling, Ent. News, XIII, 97, PI. 4 (1902) ; Dyar, Jour. N. Y. 

 Ent, Soc, XIII, 141 (190S) ; Skinner, Tr. Am. Ent. Soc, XXXVII, 205 

 (1911). 



" ? . E.xpanse 3J/S inches. Primaries above brown with three subcostal 

 yellowish-white spots and a band of five large orange spots extending from 

 these to near the internal margin ; a spot of the same color near the end of 

 the cell. On the primaries beneath these markings are repeated. Secondaries 

 above immaculate, fringes white. Beneath, there are two white spots on the 

 costa and four small white spots in a line below the central area of the wing." 



As far as we know there are only two specimens of this species 

 in existence, the type 9 is in Dr. Barnes' Collection, a second speci- 

 men, also a 9 , is in the collection of Mr. O. C. Poling. We have seen 

 both specimens and have no hesitation in declaring the species abund- 

 antly distinct from both ncumocgeni or strcckcri, with which Poling 

 and Skinner are inclined to associate it. It appears to us to bear con- 

 siderably more relation to yuccac, in which group we tentatively 

 place it. 



The Claw segment (PI. Ill, Fig. 9) is remarkable for the fact 

 that it bears no spines, but merely numerous lateral hairs, a fact which 

 distinguishes it from all members of the family we have been able to 

 examine. The pulvillus is short, conical, with a minute tubercle at 

 apex ; the paronychuim is bilobed, one lobe being short and broad, 

 the other long, finger-shaped. The antennae, as we have already 

 mentioned, follow the Iicspcriaris type, the club being longer and nar- 

 rower than in any other Mcgathymiis species. 



We have been unable to examine other structural details. 



Habitat. S. Arizona (Pima County). 



Group III 

 Secondaries in $ se.x with the basal half covered with long hair. 

 M. .STRECKERi Skinner. 

 Aegiale streckeri Skinner, Can. Ent., XXVII, 179 (1895). 



There are two distinct races of this species, one occuring in Texas, 

 the other in S. Colorado, New Mexico and Arizona. Both these races 

 are included in the type specimens of streckeri; we have received 

 through the kindness of Dr. Skinner colored figures of both $ types 

 in his possession, one doubtfully from Arizona, and the other from 



