DESCRIPTIONS OF NEW SPECIES. 231 



MOtfOHAMMUS SERV. 



The species infest pine trees thoughout the whole extent of thF 

 United States, and contiguous northern regions. They may, 

 following the arrangement proposed by Lacordaire, be tabulated 

 thus : 



A. Elytra rounded at tip, suture prolonged ; 



Brown, elytra mottled with quadrate patches of brown and gray pubes- 

 cence ; sutural spine acute ; prothorax rather smooth, sparsely punc- 

 tured, lateral spine larger but less acute than in the next species. 



1. TITJLLATOR (Oliv.). 



Smaller, brown, elytra more cylindrical, with some patches of fulvous hair 

 in front, of the middle, sutural spine larger and obtuse ; prothorax more 

 punctured and rugose, lateral spine more acute. Length 14 18 mm. 

 Georgia.* 2. MINOR n. sp. 



Dark blackish-brown, with metallic gloss, elytra with gray pubescence, 

 varied with quadrate patches of dark-brown hair, sutura.1 spine obtuse ; 

 prothorax strongly punctured and rugose, spines acute densely clothed 

 with whitish pubescence. 3. MACULOSUS Hold. 



Blackish, with a dull leaden gloss, elytra as in the preceding, but the 

 punctures are stronger, and tend to coalesce into transverse rugae ; 

 prothorax less punctured but more rugose, lateral spines less densely 

 clothed with yellowish-white pubescence. 4. CLAMATOR Lee. 



B. Elytra rounded at tip, suture not prolonged ; 



Black with bronzed lustre; scutellum densely clothed with white hair, 

 elytra with a few small spots of white pubescence. 



5. SCUTELLATUS (Say). 



Black with more leaden lustre ; scutellum clothed with white hair, but 

 with a denuded medial stripe ; elytra with more abundant small 

 patches of white pubescence, punctures more disposed to form trans- 

 verse rugae. Length 17 24 mm. Oregon and Washington Territory. 



6. OREGONENS1S H. Sp. 



Gray, clothed with fine rather close gray pubescence, prothorax much 

 less punctured and rugose, elytra with small patches of blackish-brown 

 hair. 7. COSFUSOR Kirby. 



C. Elytra gradually obliquely narrowed at the tip, suture not spinose ; 

 Brown, elytra beautifully ornamented with large quadrate spots of fulvous 



cream-colored pubescence, and denuded spots : M. fautor Lee. ; acutus 

 Lac. % 8- MARMORATDS (Rand). 



* I have one specimen labelled Canada, but the locality seems doubtful. 



