﻿138 New York State College of Forestry 



directed caiidad, distinctly separate from the ridge above and 

 from the strongly elevated acute posterior margin of the declivity, 

 which is often slightly crenate and occasionally somewhat emargi- 

 nate at the center. Yestiture abundant and moderately long. 



The male is similar but the frontal carina is usually lacking, 

 the sculpture coarser and the declivital teeth are longer, coarser 

 and more curved. 



This species is allied to I. latidens Lee. and I. longidens Sw. 

 being especially closely related to the latter. It is, however, 

 readily distinguished by the presence of the carina and by the 

 coarser sculpture on the f rons ; by the differently shaped pronotum 

 with its coarser, more numerous asperities, and by the coarser, 

 better developed declivital armature as well as by other characters 

 given in the description. 



Type —A female, Grand Lake, Colorado. March 4, 1921, E. E. 

 Guild, collector; N. Y. S. Coll. For., Lot No. 1227. 



The tjTpe series contains twenty-three specimens taken from 

 their burrows in the bark of lodgepole pine {Pinus murrayana 

 Elw.) near Grand Lake, Colorado, January 22 and March 4, 1921, 

 by Mr. Eugene K. Guild, a former student, now a ranger in the 

 National Park Service. The species is named in honor of Mr. 

 Guild. 



Pityophthorus tnurrayanae n. sp. 



Description of the adult female: Reddish brown in color; 

 2.2 mm. long, 3.14 times as long as wide. 



Front of the head (Plate X, fig. 5) flattened on a semicircular 

 area which is very finely and very densely punctured and orna- 

 mented with numerous very fine, very short hairs; epistomal 

 margin thickened to form a lip which bears minute inconspicuous 

 hairs; sides and upper part of frons more sparsely and coarsely 

 punctured ; eyes rather finely granulate, strongly emarginate ; 

 antenna pale yellow in color, the club oval, with the first two 

 sutures straight and strongly ehitinized, third suture arcuate and 

 subparallel to the distal margin. 



Fronotum 1.1 times as long as wide; with the posterior angles 

 rounded, the sides subparallel behind, rather abruptly narrowed in 

 front of the middle, broadty rounded in front ; the anterior margin 

 with broad, low serrations ; the asperities of the anterior area rather 

 broad and low ; summit moderate ; posterior area shallowly de- 

 pressed just behind the summit, surface shining, moderately punc- 

 tured, with a distinct slightly elevated impunctate median line. 

 Lateral margin of pronotum rather sharp behind ; ventral surface 

 punctured except in the posterior lateral angle. 



Elytra wider than the pronotum, nearly exactly twice as long 

 as wide, with the sides subparallel, rounded behind the origin of 

 the declivity and with the apex subacuminate ; the surface shining ; 

 striae not impressed, the strial punctures of moderate size, rather 

 closely arranged; the interspaces narrow, somewhat rugulose, with 



