98 



being 5 £,2 9 from the above mentioned locality ; it also occurs in 

 a very slightly different form in Southern California. 



Along with minorata we received a series of a closely allied species 

 which has possibly been confused with cognata but for which there 

 appears to be no name available ; we describe it as follows : 



Xylomvges februalis sp. nov. (PI. XVI, Fig. 12). 



Collar and thorax with thick vestiture composed of whitish scales, vari- 

 ably and contrastingly mixed with black; a black transverse line across collar; 

 primaries white suffused with black (at times largely black) and shaded with 

 olivaceous ochreous, especially at base of wing and around reniform; macula- 

 tion much as in cognata but better defined; subbasal line geminate, crenu- 

 late, white filled, followed below cubital vein by a broad blackish shade 

 connecting it with t. a. line; subbasal space largely dark, distinctly olivaceous 

 ochreous along inner margin; t. a. line geminate, prominently white-filled, 

 irregularly dentate; claviform variable in size, usually large, outlined in 

 black, filled with olivaceous; orbicular inconspicuous, large, oval, outlined 

 in black, white filled; reniform large, broad, irregularly lunate, whitish, 

 shaded with olivaceous in lower portion and with central dark lunula; median 

 shade broad, dark, outwardly oblique to base of reniform, then angled, narrow, 

 dentate and parallel to t. p. line, the median space beyond it largely olivaceous; 

 t. p. line strongly crenulatc, broadly geminate, white filled, well bent out beyond 

 reniform, then inwardly oblique and closely approached to median shade; s. t. 

 line whitish, irregular, slightly dentate on veins 3 and 4, preceded by black 

 shades and followed by a black suffusion which occupies the whole terminal 

 area except at apex of wing which is pale; a narrow white terminal line; 

 fringes dark, cut by white opposite veins. Secondaries whitish, slightly sprinkled 

 with smoky and with a prominent dark discal dot and terminal line ; a faint 

 curved median line. Beneath primaries pale with traces of a dark postmedian 

 line bent slightly at costa ; secondaries much as above, rather paler with stronger 

 maculation. Expanse 37 mm. 



Habitat: Eldridge, Sonoma Co., Calif. (Feb.) 8^, 2 9. Types, Coll. 

 Barnes. 



The species is readily separated from the form minorata which 

 occurs with it by the larger size, the much more contrasted maculation 

 and the strikingly black and white thoracic vestiture; from typical 

 cognata which it more nearly approaches it may be quickly distin- 

 guished by the entirely blackish terminal area of primaries ; the macu- 

 lation, especially the t. p. line, is better defined, this line being more 

 strongly and evenly crenulate above the inner margin than in cognata. 

 The $ genitalia are very similar but there are minor points of dis- 

 tinction which point to specific distinctness; in cognata the terminal 



