192 GROTE & ROBINSON. 



the head between the antennae. Primaries with the apices produced ; 

 costa unusually depressed ; external margin rounded. Anterior wings 

 warm cinereous, evenly and sparsely irrorate with black scales; mark- 

 ings very distinct. A narrow basal yellowish white transverse line 

 toothed on median nervure. An outwardly oblique, similarly colored 

 line runs from costa near the base to internal margin near the angle, 

 from whence it ascends again to the costa at apical third, thus forming 

 the usual " V" as in its allies. The lines forming this V-shaped mark 

 are shaded inwardly with obscure olivaceous fuscous, thus darkening 

 the middle of the wing ; a dark shaded spot at extremity of discal 

 cell. The outer line is prominently white on costa, opposite the disc 

 it is irregular and subobsolete. A short intermediate line is emitted 

 straightly downwards from the inner line at median nervure. The 

 outer line is followed superiorly by a series of five very bright red 

 iuterspaceul shades, succeeded by four obscure fuscous shaded marks. 

 An interrupted black subterminal line, outside of which the terminal 

 space is shaded with reddish superiorly. Secondaries brownish gfey ; 

 a faint median line more apparent beneath. Under surface of prima- 

 ries obscure brownish; a faint subterminal shade line marked with 

 whitish on costa, and there succeeded by a reddish shade, while a 

 similar pale reddish shade is continued inferiorly along external margin. 



Uxpanse^ 29 mil. Length of hodi/, 14 mil. 



Hdbitat. — California. (2 9 spec, in Mus. Berol.) 



Readily distinguished from I. inclusa, by its smaller size, grey color 

 and the greater extent of the reddish interspaceal marks which follow 

 the outer line of the primaries in both species. 



Subfamily Ceratocampinae. 



Tribe IIEMILEUCINI. 

 HEMILEUCA, Walker. 

 Hemileuca grotei. (Plate 2, fig.* 60 9 .) 



Hcmilcuca (jrotei, Hopffer, M8. 



9 . — Head black; collar pale yellowish white; thorax and abdomen 

 black, mixed with longer yellowish hairs; metathorax with a few 

 longer red hairs which appear to line the tegulae inwardly. Legs 

 black, femora outwardly clothed with red hair. Wings dull black, 

 opaque. Primaries with a short, broad, semi-transparent, lunulate 

 spot at extremity af discal cell. Above and beyond this, nearer to the 

 costa, is a larger and broader whitish semilunate spot. Inferiorly are 



■•■■■ H. Tieft'eubach fecit. 



