DESCRIPTIONS OF NEW SPECIES. 207 



PACH1TA Serv. 



533. P. armata. Nigra, opcaca, pube erecta villosa, capite thoraceque 

 confertissime punctatis, hoc apice et basiprofuudeconstricto, basi multo 

 latiore, spina laterali valida elongata, apice rotundata ; elytris basi 

 prothorace multo latioribus, postice sensim valde angustatis, apice trun- 

 catis, nitidis glabris, flavo-testaceis, pone medium extrorsum oblique 

 nigris, parce punctatis, punctis versus humeros asperatis. Long. 19 

 mm. 



Oregon ; Mr. TJlke. Related to P. liturata Kirby (nitens 

 Lee), but much broader, with entirely different sculpture, and 

 with much longer thoracic spines ; the humeral regions of the 

 elytra are very prominent, and the disk is broadly concave inside 

 of them ; a broad oblique groove runs from below the humeral 

 prominence on to the dorsum of the elytra where it is lost ; the 

 black space extends along the outer margin obliquely from just 

 behind the middle to the sutural tip. The antenna? and other 

 organs are as in P. liturata. 



534. P. rugipennis. Nigra, subsenea, pube brevi minus subtili 

 parce vestita, antennarum, femorum tibiaruinque basi ferruginea ; elytris 

 apice rotundatis, rude punctatis, et lineis elevatis fortiter reticulatis, 

 fascia transversa cerina angusta ad medium ornatis. Long. 13 — 16 mm. 



One pair, Canada. The male has the antenna? two-thirds as 

 long as the body, and the elytra slightly narrowed from the base ; 

 in the female the antenna? are shorter, and the elytra broader, 

 and parallel on the sides. The head and thorax are densely and 

 coarsely punctured, the latter narrower in front, with the usual 

 transverse constrictions before and behind ; the lateral tubercle 

 is acute ; the disk is feebly foveate each side, and the dorsal line 

 is narrow and somewhat channelled. The sculpture of the elytra 

 is very peculiar, consisting of a reticulation of smooth, strongly 

 elevated lines with the depressed spaces coarsely punctured, from 

 the punctures proceed rather coarse golden hairs ; at the mid- 

 dle there is a narrow transverse waxy band. 



I have seen specimens of this insect in the British Museum 

 under the names P. rugipennis \.Newman, and P. bimaculata 

 \.Dej. I have adopted the former as being more applicable. 



