OF AMERICA NORTH OF MEXICO. 157 



3. T. 5-MACULATus, niger, undique subtiliter cinereo-pubescens, vix nigro-villosus, supra coccineus, thorace 



4-maculato, latitudine sesqui breviore, lateribus subito dilatatis, eljtris scutsUo, gutta humerab', 

 alteraque postica nigris, apicc nigricantibus. Long. -41. 

 Haldcman, 53 ; Le Conte in Agassiz Lake Superior, 234. 



The only specimen I have ever seen was sent by Dr. Pitcher as having been 

 found at the Sault Ste Marie; the antennse and feet, as in the preceding species, 

 are black. The thorax has the same form as in T. tetrophthalmus, but is not less 

 pubescent than the rest of the body ; the posterior spots of the elytra are more widely 

 separated than the corresponding ones of T. tetrophthalmus, and the tips of the elytra 

 are blackish. 



4. T. FEMORATUS, niger, dense cinereo-pubescens, cinereo-villosus, supra coccineus, thorace 4-maculato, 



utrinque longitudinaliter subito depresso, lateribus subito valde dilatatis, margine basali nigro, 

 elytris scutello, maculitque utrinque 4 nigris, antennis annulatis, femoribus rufis. Long. '52. 

 Le Conte. J. Ac. Nat. Sc. new series 1, 98. 



A very distinct species found near the Rocky Mountains. The middle of the 

 thorax is elevated, and separated from the sides by a sudden declivity ; in T. 

 tetrophthalmus the elevation is much less sudden ; in T. canteriator and T. 5-macu- 

 latus the thorax is transversely regularly convex. 



5. T, BASALis, niger dense cinereo-pubescens, nigro-villosus, supra coccineus, tborace 4-maculato, utrinque 



longitudinaliter subito depresso, lateribus valde dilatatis, elytris scutello maculisque utrinque tribus nigris, 

 antennis annulatis articulo l™" fomoribusque rufis. Long. -55. 



A single specimen from the Sierra Nevada. Mr. C. J. Hughes. Very similar to 

 the preceding, but the elytra have long black hairs proceeding from every puncture ; 

 the first joint of the antennse is entirely red, and the posterior margin is not blackish ; 

 the spots of the elytra have the same position as in T. femoratus, the fourth one is 

 scarcely distinct, and placed quite at the margin. 



6. T. CANESCENS, uiger densissime cinereo-pubescens, non villosus, tborace quadrimaculato, utrinque longi- 



tudinaliter depresso, lateribus modice dilatatis, elytris scutello, punctisque utrinque tribus nigris : antennis 

 annulatis. Long. -46, 



New Mexico, Fendler ; the pubescence is so thick as entirely to conceal the color 

 of the inferior parts; the feet are entirely black, when the pubescence is scraped off; 

 the spots are arranged as in T. tetrophthalmus, but the external medial spot is entirely 

 wanting, and the posterior one is farther from the tip. There are no long hairs 

 proceeding from the punctures, and the sides of the thorax are less suddenly dilated 

 than in T. tetrophthalmus. This is probably the variety referred to by Say, (Bost. 

 Journ. 1, 196.) 



7. T. ANNULATUS, niger, dense cinereo-pubescens, non villosus, supra coccineus, thorace 4-maculato, lateribus 



modice dilatato, elytris scutello, punctisque utrinque tribus nigris, antennis annulatis, pedibus rufis. 

 Long. 'SS. 

 Le Conte. Journ. Acad. Nat. Sci. new series, 1, 93. 



40 



