﻿New Species of Lpidae from Maine 123 



red spruce felled a few weeks previously, Avhere it was associated 

 with P. hriscoei n. sp., Drijocoetes americanns Hopk. being common 

 in the larger portions of the limbs. The male was derived from 

 white pine twigs from Mt. Desert Island, Maine, Aug. 19, 1919, and 

 was there associated with P. puJicarins Zimm. 



Pityophthorus briscoei n. sp. 



Description of the adult female: Very dark brown, almost 

 black ; 2.0 mm. long, three times as long as wide. 



Front of head with a nearly circular concavity extending from 

 eye to eye, with dense, yellowish brown plush-like pubescence, 

 slightly longer at the lateral margins, divided by a median vertical 

 sulcus which is shining, apparently impunctate and glabrous ; 

 above the concavity roughly punctured. Eyes rather finely granu- 

 late, with the inner line narrowly emarginate. Antennal club 

 longer than the funicle, with the first two sutures curved, the 

 third more strongly arcuate. 



Pronotum 1.16 times as long as wide; sides subparallel behind, 

 broadly rounded in front ; front margin weakly serrate ; anterior 

 area moderately asperate; summit fairly prominent, wide trans- 

 verse impression behind summit ; median, longitudinal, impunctate 

 line hardly elevated; posterior half of jironotum deeply, rather 

 finely punctured on the disc and sides, with very fine and short 

 yellow hairs; ventral surface of the prothorax impunctate and 

 glabrous behind, punctured anteriorly. 



Elytra slightly wider than thorax, 1.87 times as long as wide; 

 with the sides faintly arcuate, widest at the middle; very broadly 

 rounded behind and appearing sulcate-truncate from above ; 

 elytral striae not impressed, deeply, not coarsely punctured ; strial 

 punctures somewhat irregular near suture and declivity and at 

 the sides; interspaces smooth, shining, with punctures similar to 

 those of striae, sparse on the disc, more numerous near the 

 declivity and at the sides. Declivity steep, with moderately wide, 

 deep, shining sulcus; suture slightly elevated, devoid of granules; 

 lateral elevations moderate, each with a few small rather closely sot 

 tooth-like granules in a row on the third interspace. Disc with 

 minute, short, inconspicuous hairs, longer and coarser at the sides, 

 scarcely so behind. 



3Iale shorter and slightly wider; front flattened on a nearly 

 circular area, rather coarsely and roughly punctured, with a dis- 

 tinct median carina elevated into a sharp, laterally compressed 

 tooth slightly above the epistomal margin, with a rough, transverse 

 arcuate ridge at the level of the upper angle of the eyes ; declivity 

 more deeply sulcate ; lateral elevations each raised at its center 

 into a blunt tooth-like prominence in the third interspace, with 

 faint traces of granules along its anterior slope. 



T}jpe — A female, Brunswick, Maine, June 29, 1919, M. AV. 

 Blackman, collector, N. Y. S. Col. For., Lot No. M-62-a. 

 Host tree — Red spruce (Picea ruhens Sarg.). 



