OF WASHINGTON. 325 



ground; cervical shield contrasting, velvety black, divided only by the 

 yellowish subdorsal line; anal plate pale. Dorsal and subdorsal lines 

 narrow, pale, breaking down ; tubercles in brown rings. Stigmatal band 

 pale yellow, narrow, nearly enclosing the spiracles except on joints 2 and 

 12 where it passes below them, not wider than the height of a spiracle. 

 Feet pale, except the tips of the thoracic ones; spiracles black rimmed; 

 tubercles and setae minute. 



Food plant, oak. Dept. Agriculture, No. 3350. Before the last stage 

 the cervical shield is not black. 



34. Xylina carbonaria Harvey. 



Head wider than high, scarcely bilobed, shining, pale brown marked 

 with very dark brown ; an even vertical band from the back of the head to 

 the clypeus near apex; distinct reticulations all over the surface, the 

 paraclypeal pieces and cheeks below ocelli also dark; clypeus centrally 

 pale and somewhat translucent ; width 2.8 mm. Body pale brown, heavily 

 marbled-reticulate with red-brown. Dorsal line straight, narrow, pale, 

 not cutting the anal plate and only faintly so the cervical shield. Sub- 

 stigmatal line rather narrow, pale, but overlaid by the red reticulations. 

 Spiracles narrowly black edged. Leg plates uncornified, shields some 

 what corneous, distinct, brown, not shining. Feet equal, tubercles and 

 setae minute, dark. 



Food plant, willow (Saltx calif ornica). Los Angeles Co., California. 

 A. Koebele, No. 144. 



35. Xylomiges ochracea Riley. % 



Head rather small, wider than high, green, clypeus whitish; a diffuse 

 brown vertical band to base of clypeus and two short side lines, the reticu 

 lations faint except toward the back of the head ; labrum pale ; width 2.5 

 mm. Body reddish-brown, dotted, mottled, the pale ground obscured 

 except narrowly at the incisures. Dorsal line distinct, widening in the 

 center of each segment, yellowish white, suffused with pink, reaching the 

 extremities. Subdorsal line broad, sharp, yellowish white, narrowly 

 vinous red in the incisures, edged above diffusely with velvety brown ; 

 lateral line present, narrow, yellowish white, the edges somewhat crenu- 

 late and breaking down, irregularly edged with velvety brown below. 

 Both this line and the subdorsal reach the extremities. Substigmatal 

 line broad, distinct, sharp edged, narrowed in the incisures, touching the 

 lower edges of all the spiracles, reaching from joint 2 anteriorly to the end 

 of the anal foot, yellowish-white, centered with diffuse vinous mottlings. 

 Spiracles narrowly dark rimmed. Shields scarcely cornified, cut by all 

 the lines; tubercles and setae minute. 



Food plant, Artemisia calif ornica. Los Angeles Co., Cal. A. Koebele, 

 No 115. 



36. Xylomiges patalis Grote. 



Head 2.7 mm., pale around mouth and base of antennae, heavily shaded 

 with dark brown above, the vertical band distinct below. Body dark 



