CRYPTOCEPHALINARUM BOREALI-AMERICAE DIAGNOSES. 247 



A. 



■ 4. C. GUTTATUS Ba/^. Laete rufus: capite flavo-maculato ; antennis fuscis, basi 

 rufis : pronoto subtiliter sparse punclulato, canaliculato ; margine angusto, maculisque 

 2 basalibus flavis : elytris nigris, profunde punctato-striatis, singulo maculis flavis 

 4-2-2-1 positis, ultima apicali: pygidio punctato, leviter carinato, apice utrinqiie 

 macula parva flava. Long. 2 lin. 



^ ..? 9 with a transverse impression between the anterior coxae, and a deep fovea 

 on the last segment of the venter. Pensjlvania, 



5. C. FORMosus Mels. Pr. Acad. 3,173 :14. Niger, capite fulvo-variegato, 

 antennarum basi flavis : pronoto laevissimo, margine fulvo-interrupto, maculis 2 

 basalibus fulvis : elytris profunde punctato-striatis singulo guttis 3 ?-2-2-l positis 

 fulvis, ultima apicali : pygidio punctato, carinato, supra leviter impresso. Loner. 

 2 lin. 



Black, head punctulate, frontal line impressed ; front below the antennae, and 

 extending to the inferior portion of the eyes, and a spot at the inner superior angle of 

 the eye fulvous ; antennae flavous, except the four apical articulations, which are 

 obscure fuscous : pronotum with the four angles, two basal spots, and anterior margin 

 fulvous : elytra profoundly punctate striate, with four series of transverse fulvous 

 spots, the basal row occupying the first third and fifth interstices, but as the second 

 and fourth have some colour, the basal spots may be considered confluent ; the 

 interior basal spot is in contact with the scutel, which gives it an oblique direction; 

 the two medial spots (on each elytron) are sometimes confluent ; posterior to these are 

 two more, and an apical one. 



% with an acute yellow spine near the anterior margin of the presternum, and a 

 yellow platoon the first segment of the abdomen, bearing two sharp teeth posteriorly: 

 venter with a large shallow impression defined laterally and posteriorly by an acute 

 line. 



9 with a slight fovea between the anterior coxae, and a deep fovea on the final 

 segment of the abdomen. 



6. C. LAUTUs Newman. Mag. n. h". 1840, 4,250. — guttatus].'Dei. Cat. ,447'. 

 — pulcher].Meh. Cat. :497. Laete rufus, pernitidus, capite flavo : pronoto laevissimo, 

 elytris nigris punctato-striatis, macuhs flavis 3-2-2-1 positis, ultima apicali, superiori 

 externa humerali : abdomine flavo-marginato. 



o. Elytris brunneis, flavo-maculatis. 9 . 



e. Elytris nigris, maculis posticis obsoletis : puncto solum apicali flavo. % 

 In both sexes the anterior margin of the presternum is prominent, covering the 

 mouth, and emarginate posteriorly : the male is destitute of the ventral fovea. 



63 



