258 CRYPTOCEPHALINARUM BOREALI-AMEKICAE DIAGNOSES. 



G — b. (Canthostethus.) 



40. C. RUGicoLLis Hald. 4-Dei. ,447'. Rufus, elongatulus : fronte scabro-punctata^ 

 orbitis flavis ; occulis nigris angustis : pronoto longitudinaliter ruguloso, lateribus 

 grosse punctatis, fiavescentibus : scutelli disco flavo : elytris flavis, indistincte rufo- 

 nebulosis, punctato-striatis, punctis rufis, approximatis ; basi tenuiter nigro ; apice 

 punctato. Long. 2, lat. 1 lin. 



Antennae pale rufous, scarcely darker towards the apex : punctures of the elytra 

 regular, coarse, and approximate : mesosternum polished, medial line impressed : apex 

 of the venter vi^ith a fovea. A single individual observed. Southern. 



41. C. FASCiATUS Say. J. acad. 3,437. — lateritius Newra. Ent. mag. Rufus: 

 capite scabro-punctato ; labro, orbitisque flavis ; antennis fuscis, basi rufis : pronoto 

 flavo, basi tenuiter nigro ; confertim punctato, punctis impressis rufis : scutelli basi 

 emarginato, nigro: elytris flavis; basi tenuiter nigris; fasciis 3 rufis undatis; 

 irregulariter punctato-striatis, punctis rufis : pygidio flavo, punctis impr.essis rufis : 

 subtus punctulis piliferis : sterno in medio et abdomine inter coxas flavis : sterno 

 linea longitudinali impressa. Long. 1^ lin. 'S 



a. {tesselatus \.Dei. ,447') pronoto rufo, punctis raajoribus, elytrarum fasciis 

 confluentibus. '^ 



The punctures of the pronotum being rufous and dense, the surface has a rufous 

 tinge although the ground color is flavous. In the variety the rufous becomes 

 confluent, the punctures are somewhat larger, and the elytral fasciae have become 

 confluent, leaving two distinct flavous spots towards the apex, and the scutellar 

 region flavous. Two specimens examined. Southern. 



Not having observed or recognized the follorving species of Cryptocephalus, they 

 cannot be satisfactorily placed in their proper section. 



42. C. LARVATUS Nm. 1840. Mag. n. h". 4,250. " Antennae fuscae, basi testaceae : 

 caput nigrum, fascia sinuata medio interrupta verticali, altera sub oculis, labroque 

 flavidis : prothorax flavidus, maculis 2 punctiformibus nigris : elytra flavida uterque 

 maculis 3, quarum 2 basalibus, 1 discoidali, nigris signatus; sutura margineque 

 lateral! fere ad basin quoque nigris : abdomen nigrum, lateribus, macula mesosterni 

 utrinque, podiceque flavidis : pedes flavidi. (Corp. long. -25 unc. lat. 15 unc." 

 Florida. 



43. C. LiMBATUs Nm. id. " Antennse picese : caput profunde punctum, nigrum, 

 macula antica oculorumque marginibus albidis : prothorax profunde punctus, niger, 

 margine lateral! albido: elytra rugose et irregulariter puncta, miniata, macula dorsal! 

 commun! nigra: abdomen et pedes nigra. (Corp. long. 17 unc. lat. -09 unc.)" This 

 species is evidently a Pachybrachys. Florida. 



