DESCRIPTIONS OF NEW SPECIES. 237 



IMM.O\0( 13 lltl s Sekv. 



The following characters will serve to distinguish our species: 



A. Erect hairs, very long ; elytra truncate and bispinose ; 

 Crests of elytra strongly marked ; 



Scarcely variegated, crests feebly tufted. 1. crinitus n. sp. 



With a white fascia before the middle of elytra, crests with long tufts 

 of hair. 2. penicellatus Lee. 



Crests of elytra feeble, with a large anterior transverse white band, 

 badly defined in front. 3. oregonds Lee. 



B. Erect hairs short; elytra with an anterior white blotch ; 



Elytra rounded at tip. 4. simplex n. sp. 



Elytra truncate at tip, and subbispinose ; 



Moderate sized, more strongly punctured. 5. mixtus Hald. 



Very small, less strongly punctured. 6. parvulus Lee. 



C. No erect hairs ; pubescence uniform ; 



Elytra rounded at tip. 7. sordidus n. sp. 



566. P. crinitus. Dense cinereo-pubescens, subvariegatus, pilis pal- 

 lidis longissimis villosus ; prothorace lateribus fortiter armato; elytris 

 cristis solitis valde elevatis, vix penicellatis, apice bispinosis, spina ex- 

 teriori longiore. Long. 9 mm. 



California ; Mr. Ulke. Easily recognized by the absence of con- 

 spicuous white spots, the stronger armature of the prothorax and 

 elytra, and the longer erect hairs. 



567. P. simplex. Nigro-piceus, pube albida variegatus, parce nigro- 

 pilosus ; elytris versus suturam confuse, extrorsnm seriatim punctatis, 

 plagamajore obliqua alba ante medium signatis, apice rotundatis, baud 

 truncatis, sutura prominula. Long. 6 mm. 



Kansas and California; Resembles closely P. mixtus, but the 

 usual ridges of the elytra are scarcely to be traced, and the tip 

 is not truncate. 



568. P? sordidlis. Piceus pube minus subtili sordida dense vestitus, 

 prothorace baud dense profunde punctato, latitudine vix breviore, spina 

 laterali louga acuta ; elytris parallelis apice rotundatis, punctis profun- 

 dis subseriatim digestis ; antennis sub-annulatis, parce ciliatis. Long. 

 8—13 mm. 



Cape San Lucas ; Mr. Xantus. This species is quite unlike 

 the others, on account of the absence of long erect hairs ; in color 

 and sculpture it bears a singular resemblance to Ataxia, but is 

 of a different form, and the generic and tribal characters are very 

 different. I can find nothing of importance to separate it from 

 Pogonocherus. 



