48 Mr. Newman's Descriptive List 



##*### Mexican Group. 



The elytra are without either impressed striae, or dorsal exca- 

 vations, but have series of punctures generally arranged in lines; 

 the terminal segment of the abdomen is immaculate. 



26. POPI. STICTICOLLIS. 



Testacea ; capilis maculce duce posticce, prothoracis maculce dis- 

 coidales 2, rnarginesque ant'icus et jiosticus, scutelli margo, elytro- 

 rum sutura margoque lateralis versus apicem nigra. (Corp. long. 

 •45 unc, lat. '25 unc.) 



Colour. — Testaceous, with the posterior part of the head where 

 received into the prothorax black. This colour extends for- 

 wards near each eye, beyond the anterior margin of the 

 prothorax, thus looking like two detached spots. On the 

 prothorax are two detached spots, elongate longitudinally ; 

 the anterior and posterior margins are also black : the scu- 

 tellum has a black margin ; the suture of the elytra, and the 

 posterior half of the external margin uniting with the su- 

 ture, are also black ; the entire sternum is black, the femora 

 piceous and the tarsi black. The terminal segment of the 

 abdomen above is perfectly immaculate. 



Sculpture. — The head is punctured with tolerable regularity ; the 

 punctures are large, but not deep ; the prothorax is punc- 

 tured rather more sparingly than the head ; the elytra have 

 no impressed striae, but have twelve series of punctures, at 

 nearly regular intervals ; of these, the second is very diffuse 

 and ill-defined, and seems to be composed of two series of 

 punctures intermixed. 



Inhabits Mexico. 



27. PoPI. VIDUA. 



Nigra, glabra ; antcnnce testacece, capitulo nigro. (Corp. long. 

 •425 unc, lat. "25 unc. 



Colour. — Black and shining ; the antennae are testaceous, with 



the lamellae black ; the terminal segment of the abdomen 



above is perfectly immaculate. 

 Sculpture. — As in the last. 

 Inhabits Mexico, 



