HESI'KUIDAE : IIE.Sl'lCKIDI. 1857 



third, by a nan-ow, oljscui-e brown band, inside of -which the wing is darli brown ; ont- 

 side of this band, the subterrainal series of brown spots of the primaries is continued. 



Boncatli, the purplish reflection of the upper surface appears only at the tip of the 

 wing, the median and basal portions being dark brown, concolorous with the seconda- 

 ries inside of the paler browu band ; the obscure, intra-uervular brown spots of the 

 upper surface are repeated aud continued ou the secondaries; the transparent spots 

 are without the Ihies of brown scales. 



Abdomen darker brown, reaching ouly to the pale band of the hind wings. Expanse 

 of wings, -42 mm. ; length of body, 9 mm. 



The abo-\-e description is that given by Lintner, with ouly such transposition as to 

 make it agree with the order followed in the present work. 



All that is know'ii regarding this butterfly is the statement by Mr. Lint- 

 ner that one specimen "was captured in Hamilton, Ontario, by Mr. J. 

 Alston Moftat, in 1877, in company with another like it, which escaped 

 capture. It is presumed to belong to Thorybes. 



PHOLISORA SCUDDER. 

 PHOLISORA HAYHURSTII. 



Hesperia hayhurstii Edw., Trans. Am. Am. butt., 51 (1ST2);— French, Butt. east. U.S., 



ent. soe., iii : 22 (18'0). 867-368 (1S86). 



NisoniriO.es hayhurstii Kirb., Svn. cat. Helias hayhurstii Hew., Cat. coll. diurn. 



Lep., 631 (1871). " Lep., 2.39 (1879). 



J'holisora haylnirstii Seudd., Syst. rev. 



Imago. Head and upper surface of palpi tufted with black and saffron scales, the 

 former predominating ; the palpi sordid white beneath : antennae blackish brown with 

 clay brown under surface. 



Wings dark ashen browu, enlivened by three sets of parallel arcuate bauds of rich 

 dark l)rown, one narrow and submarginal, the other two dividing'the wings subequally, 

 broad above and narrowing below ; the middle of the three is the broadest and on 

 the upper half of the wing mucli broader than the width of the cell; these bands are 

 all obscure and cloudy, aud in addition the wing is occasionally flecked very sparsely 

 Indeed aud indiscriminately over the whole surface with pale bluish white scales. Ou 

 the fore wings, depending from the middle of the outer half of the costal margin, 

 are two minute silvery white spots often reduced to the merest dots in the superior 

 subcostal interspaces ; and there is occasionally present a similar dot, easily over- 

 looked, near the base of the lower median interspace at the inner edge of the middle 

 band. On the liind loinys the transverse markings are narrower aud generally more 

 obscure, the middle band sometimes no broader than the others. 



Beneath, nearly uniform dark gray brown, the outer third of tlie wings a very little 

 lighter, all the wings obscurely mottled with slightly darker and lighter markings in 

 which uo definite pattern can be discovered, excepting occasioually with the utmost 

 vagueness a repetition of the darker markings above; the white dots of the fore wing 

 are sometimes present also below. Expanse of wings, 26-30 ram. 



Egg. Broadly arched, the ribs very thin, about .1 mm. apart, .08 mm. high at high- 

 est, the cross lines frequent and straight, forming between them and the ribs quad- 

 rangular cells .025 mm. high, and .083 mm. broad, the surface profusely punctured 

 with a remarkably uniform distribution, the punctae themselves being very uniform in 

 size, about .0025 mm. in diameter and circular. Height of egg, .48 mm. : diameter, .69 

 mm. From specimens in glycerine. 



Caterpillar. First stage. Head blackish castaneous ; dorsal thoracic shield pale 

 castaneous, the posterior edge blackish. Body white with a yellowish tinge. Legs 

 and prolegs concolorous. Length, 1.5 mm. ; breadth of head, .4 mm. From .specimens 

 in glycerine. 



