295 



Barnes & McDunnough, Check List ISO, 1917 (in part). 



Grossbeck, Bull. Am. Mus. Nat. Hist. XXXVII, 135, 1917 (in part). 



McDunnough, Can. Ent. LII, 88, pi. II, f. 1, 1920 (biol.). 

 Trhiwftilus lobidactyla Dyar, Ent. Rec. XI, 140, pi. I, f. 1, 1899 (Lar^'s). 



Head brown with a white line over eyes. Antennae blackish below, al- 

 ternately black and white spotted above. Palpi with second joint whitish, brown 

 tipped, and with a terminal tuft projecting below tliird, which is white above 

 and at its base below, otherwise brown. Thorax brown, posteriorly fawn with 

 some white scales. Patagia concolorous, whitish tipped. Abdomen mixed fawn 

 and brown. Dorsal surface with divergent white dashes, edged with dark 

 brown, on alternate segments. Ventral surface with ventral and ventro-lateral 

 white stripes edged with dark brown lines, the intervening spaces mixed fawn 

 and brown with some white patches. Legs brown and white striped as in cali- 

 fornicus. 



Vestiture of primaries a mixture of bright brown, blackish and white 

 scales, the first usually predominating and the last very scanty. First lobe with 

 two transverse pale bands, sometimes white and sometimes partly obsolete. 

 Costal fringes often white from outer band to apex. Second lobe with the 

 bands not more than indicated by a few white scales. Fringes of mixed brown, 

 black and white hairs containing a few black scales in the cleft. Inner margin 

 of first lobe also with a dark preapical pencil, sometimes preceded and followed 

 by white. Inner margin of wing with clusters of black scales and three white 

 patches; apex of second lobe with a black pencil and some white hairs. Sec- 

 ondaries dark coppery brown with gray brown fringes. Third feather with 

 black scales and white hairs at apex, the latter sometimes lacking, and with a 

 large triangular black scale tuft in fringes of inner margin beyond middle, pre- 

 ceded by variably conspicuous pale hairs. Expanse IS to 20 mm. 



Fitch's type has been destroyed. The pin and type label remain 

 in the Fernald collection, with the added notation of its loss. 



Lobidactyliis was described presumably from New York sjieci- 

 mens. Its range has been extended to include all of the northern 

 United States in various works, but the elimination of caHfoniicits 

 from the synonymy curtails this range extensively. It is in the Barnes 

 collection from Ontario (July), N. H., N. J. (June & July), and 

 Meach Lake. Ottawa Co.. Que. From the last named locality we have 

 a small series, apparently reared, of very dark specimens. In the 

 National Museum there are specimens from W. Va. and < )hio, the 

 latter state being the most westerly locality of which we know. Gross- 

 beck's Florida records probably refer partly to this species, since the 

 food plant is mentioned, but the Barnes & McDunnough specimens 

 mentioned are certainly calif or nicus. 



