198 



With his usual generosity Mr, Schaus insisted that the authors name 

 the insect from their longer series. 



The present species may be easily distinguished from all known 

 species from Boreal America by possessing a greater breadth across 

 the head, and a nearly square thorax, so that the insect presents a very 

 peculiar habitus ; also the fringe of scales on the under side of the fore 

 wing of the male is excessive, the palpi are very long being about twice 

 as long as the head, in this character resembling T. asperatella, while 

 the processes to the basal antennal joints are longer than in any de- 

 scribed species, when rested across the thorax extending to about the 

 caudal edge of the collar, and when erected extending about half of 

 their length beyond the tips of the third joints of the palpi. 



Type locality: Baboquivari Mts., Pima Co., Ariz. (O. C. Poling). 



Number and sexes of types: Holotype $ , 15-30 July 1923, El. S-7000 ft. ; 

 27 $, Paratypes, as follows: 15-30 July, 5-7000 ft. (2), 27-31 July (1), 1-15 

 Aug. (3), no date (21). 



Tetralopha griseella sp. nov. 



Palpi, head, thorax, abdomen, and ground color of primaries dull grey 

 composed of black and white powdering. All ordinary lines more or less obso- 

 lescent; when visible t. a. black, double, included space paler, nearly erect, 

 slightly excurved from costa and incurved in submedian fold; t. p. line black, 

 single, followed by a somewhat paler shade, erect on costa, strongly excurved 

 around cell, thence incurved to inner margin, dentate on the veins; a black 

 terminal line broken by pale points at the extremities of the veins ; fringe grey, 

 interlined with darker grey, and faintly checkered with white. Secondaries: 

 nearly uniform fuscous, the veins somewhat darker; and with a faint, thin, 

 blackish terminal line; fringe white, with a fuscous interline near the base. 

 Beneath: dull fuscous-grey; all wings slightly paler along the inner margins; 

 terminal lines and fringes as on upper side. 



Expanse: 24-26 mm. 



A rather aberrant member of the genus Tetralopha as vein 6 of 

 the fore wings is shortly stalked with veins 7-10, veins 4 and 5 are 

 shortly stalked, and the male has no process from the basal antennal 

 joint, while the fore wing possesses a distinct furrow ; the species thus 

 being a connecting link between the subgenera Wanda and Pococera. 

 In view of the fact that the North American species of Pococera are 

 all at present listed as Tetralopha, while many South American species 

 described as Tetralopha lack the process from the base of the male 

 antenna ; the authors prefer to describe the present species as an aber- 



