170 PROC. ENT. soc. WASH., VOL. 22, NO. 7, OCT., 1920 



face pitted, without prominent hairs. Tibiae nearly straight, fifth ventral 

 rounding. 



Allotype, Male. Length 16 mm., width 6'/2 mm., sides of elytra nearly 

 parallel for two-thirds of length, thence gradually narrowed; fifth ventral 

 truncate. 



Larva. Thorax broad, flattened, sub-quadrate, three segmented; abdomen 

 slender, sub-cylindric, ten-segmented; texture smooth, shining; translucent 

 whitish; pubescence sparse. Head, mostly retracted into prothorax, medium 

 sub-orbicular, not strongly chitinized, mouth parts darker ; front well devel- 

 oped, pits prominent, anterior frontal margin sinuate, anterior epistomal 

 margin arcuate; clypeus sub-quadrangular, broader than long; labrum sub- 

 cuniform, broader than long; antennae apparently three- jointed, basal joint 

 large, 2nd long, cylindric distal margin fringed, 3rd very small, telescoped into 

 the tip of the 2nd, bearing a long, lateral sub-distal bristle; mandibles broad, 

 well developed, blackish, distinctly three-toothed; genae well developed, sub- 

 quadrate, central margins darked anteriorly; gula narrow, darker anteriorly; 

 mentum and sub-mentum fused, triangular; labium longer than broad, an- 

 terior margin rounding, palpi sometimes faintly indicated; maxillae promi- 

 nent, light colored, cardines large, irregular, much broader at base, stipes 

 slightly clavate, shorter than cardo and darker, palpi about same length as 

 stipes, two-jointed, 1st long and cylindrical, 2nd short and conical, lacinae 

 about same length as first joint of palpus, flattened, declivent, inner margin 

 setoes. Prothorax large, cordate; plates well developed, dull, rugulose; dorsal 

 marked by an inverted Y of median grooves which has a large broad, diamond- 

 shaped, reticulated depressed area surrounding its base, grooves and depressed 

 area outlined by slightly larger rugosities; ventral marked by a broad median 

 groove which has its anterior end surrounded by a broad reticulated depressed 

 area, the whole forming a torch-like marking, and two small depressed areas, 

 one on each side of the median groove about one-third of the distance from 

 the posterior margin. Mesothorax narrower than prothorax, very short, 

 bearing a large spiracle on each side near the anterior margin. Metathorax 

 slightly broader than mesothorax and about twice as long. First abdominal 

 segment united to metathorax, broadest anteriorly, shorter than following 

 segments, without distinct lateral folds, spiracle on each side near anterior 

 margin; segments 2-8 subcylindric, with distinct lateral folds, spiracle on 

 each side dorsad of lateral fold, l / 4 distance from anterior margin; gth slightly 

 narrower and shorter than preceding, broadest anteriorly, with trace of lateral 

 fold; loth small, conical, divided posteriorly into two short, fleshy lobes. 



Habitat. Mt. St. Helena, Lake County, Calif. Described 

 from two females, one male and a number of larvae collected by 

 Mr. R. D. Hartman from the wood of the Sargent cypress (Cu- 

 pressus sargentii Jepson). 



Type, Allotype and Type Larvae .Cat. No. 22804, U. S. Nat. 

 Mus. 



