554 



l)ro\vii. Beneath, slightly paler thiiii above, with a single, oblique, dusky, 

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



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



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

 Survey). 



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

 of tlie allied forms: but it is, on the whole, more nearly related to 7". truz- 

 aliafn tlian the others, though it differs in the antenna:^ l)eing well pectinated 

 and in the fore wings being subdentate between tlie apex and median angle. 



Tetracis tkuxaliata Guenee. Plate 13, figs. 59, 67. 



Tetrads trnmliata Gueu., Plial., i, 14'i, lli.57. 



Walk., List Lep. Hot. Br. Mus., xx, 173, 18fi(). 



5 c? and 5 9. — Male antennae simple. Palpi large and stout, extending 

 fiir 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 briglit ochreons ; the 

 hind wings a little clearer and paler. Fore wings with three I)Iack bands, 

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

 spots ; the two inner lines are wide apart ; the l)asal is curved outward, 

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

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

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

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

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

 wings the three lines are quite distinct. 



Length of l)ody, cT, 0.60-0.80, 9, 0.65-0.85; of fore wing, <f, 0.70- 

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



(California (Edwards); Sanzalito, Cal, June 5-7, Sei)teml)er 9, October 

 2-7 (Behrens). 



This species dillcis from those allied lo it in the aiitenn;v l)eing simple 

 in llie male, and in tiie three l)r(iad, dark lines, sometimes tinged with 

 lerruginous. It is (lie most almndant species in California. It varies a good 

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

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

 toned, approaching a rust-red hue. 



