l. row 11. Beneath, slightly paler than above, with a single, oblique, dusky, 

 extradiscal line; no line on the hind wings. Abdomen wanting. 



Length of fore wing, cf, 0.70; expanse of wings, 1.50 inches. 



Garden of the Gods, Manitou, Colo., July 13 (Packard, Hayden's 



Survey). 



In this species, the fore wings are more blunt at the apex than in some 

 of the allied forms: but it is, on the whole, more nearly related to T. trux- 

 aliata than the others, though it differs in the antennae being well pectinated 

 and in the fore wings being snbdentate between the apex and median angle. 



Tetracis teuxaliata Guenee. Plate 13, figs. 59, 07. 



Teiraeis truxaliata Gucn., Phal., i, 142, 1857. 



Walk., List Lep. Het. ISr. Mus., xx, 173, 1860. 



5 i and 5 9. — Male antennae simple. Palpi large and > stout, extending 

 far beyond the front of the head. Wings very angular, of nearly the same 

 form in both sexes, being very falcate, the apex very sharp; the outer edge 

 well excavated below the apex ; the median angle large and very prominent. 

 Hind wings with a large, well-marked angle, or "tail", a little more promi- 

 nent in the male than the female. Body and wings bright ochreous ; the 

 hind wings a little clearer and paler. Fore wings with three black bands, 

 enlarged on the veins, and, where partly obsolete, represented by venular 

 spots ; the two inner lines are wide apart ; the basal is curved outward, 

 especially below the costa; the extradiscal line is sinuous, while the sub- 

 marginal (which is narrower than the other two) is bent outward opposite 

 the median angle; discal dots black, well marked on both wings. Hind 

 wings either clear or with a few strigse, and traces of an extradiscal line; 

 beneath, clear, uniformly ochreous, and no paler than above, while on the tore 

 win<:s the three lines are quite distinct. 



Length of body, <f, 0.60-0.80, 9, 0.65-0.85; of fore wing, t, 0.70- 

 0.95, 9, 0.80-0.95; expanse of wings, 1.80-2.00 inches 



California (Edwards); Sanzalito, Cal., June 5-7, September 9, October 

 2-7 ( Be h reus). 



This species differs from those allied to it in the antenna' being simple 

 in the male, and in the three broad, dark lines, sometimes tinged with 

 ferruginous. It is the most abundant species in California. It varies a good 

 deal (as do all the species as seen in collections) in the distinctness of the 

 lines: sometimes the ochreous tint of the fore wings especially is quite deep- 

 toned, approaching a rust-red line. 



