656 FAMILY IV. SCOLYTIDJE. 



I. PHLGEOPHTHORUS Wollaston, 1854. (Or., "bark"-f "destroyer.") 



The species formerly included in PJilwotrilms are now found to 

 belong to PhlceophtJiorus, which is separated from the older genus 

 as follows : 



a. Antennae approximate on the front, with very long funicular joints, 

 club consisting of three long lamellae, thickly pubescent. 



PHLCEOTRIBUS. 



aa. Antennae distant on the front, with elongate, 3-jointed club, the sepa- 

 rate joints of which are not greatly produced laterally. 



PHLCEOPHTHORUS. 



Either genus is immediately distinguished from the other 

 genera by the lamellate club of antenna?, composed of three sepa- 

 rate joints; head but little prolonged in front of eyes, antennal 

 groove absent; tibia? dilated, compressed, serrate at tip, inner 

 angle slightly mucronate; tarsal joints 1 3 short, gradually a 

 little wider, third not emarginate, fourth very small ; basal mar- 

 gin of elytra arcuate, n cutely elevated and serrate, strijp with 



~ 



large punctures; thorax uniformly punctured. 



KEY TO EASTERN SPECIES OF PHLCEOPHTHORUS. 



o. Club with lateral extensions of segments more than twice as long as 



their width at base. 



1}. Thorax rugose towards sides and base, rugosely punctured on dor- 

 sal area. 1061. SCABRICOIXIS. 

 b&. Thorax finely punctate throughout. 1062. LIMINABIS. 

 oo. Club with lateral extensions of segments not more than twice as 



long as wide. 



o. Club with lateral extensions of segments about twice as long as 



wide. 1063. FRONTAI.IS. 



co. Club with lateral extensions about as long as wide. 1064. PICE^E. 



1061 ( ). PHLCEOPHTHORUS SCABRICOLLIS sp. nov. 



Length, male type, 2.3 mm., width, 1.35 mm. Pronotum black, slightly 

 narrower than elytra with irregular rugosities, extending towards sides 

 and base, dorsal area opaque and closely rugosely punctured. Elytra 

 reddish-brown, stria? narrow, impressed, and closely punctured, inter- 

 spaces broad, flat, rugose with two or three irregular rows of fine scale- 

 like hairs, lateral margin of declivity sparsely serrat-e. Front narrow, 

 concave, eyes not emarginate; antennal club with three moderately long 

 sublaminate joints, scape much longer than the 5-jointed funicle and 

 sparsely fringed with moderately long hairs. Type, Cat. No. 7485, U. S. 

 National Museum. (Described by A. D. H.) 



Hessville, Ind., July 14; TV. S. P.latchley, collector. This spe- 

 cies is very different from any of the North American or Euro- 

 pean species of PJilcpoplitJioi-iis but comes closer to Plilceotn'bus 

 (PMceophthorus] scabratufi Blandf. The very long laminre of the 



