PACHYSCHELTJS. 139 



5. Niger ; elytris cyaneo-viridibus. $ . 1 lin. 



Hab. Mexico, Teapa in Tabasco (H. H. Smith). 



This closely resembles variety 2, but the large shallow punctures on the thorax are 

 rather more numerous and more distinct. 



6. Niger ; capifce thoraceque aureis vel cupreis ; elytris cyaneis vel cyaneo-viridibus. 3 . 1 lin. 



Hab. Mexico, Atoyac in Vera Cruz, Teapa in Tabasco (H. H. Smith) ; Guatemala, 

 San Juan and Chiacam in Vera Paz (Champion). 



Five examples have the thorax rather smooth, with the shallow punctures very 

 distinct. A sixth example from San Juan has the ground- sculpture more distinctly 

 reticulate (almost granular) than in any of the preceding ; this specimen was mounted 

 on the same card as one of the following. 



7. Subtus niger; supra aureo-cupreus vel rufo-cupreus ; elytrorum sutura marginibusque anguste cyaneo- 



tinctis. $ . 1 lin. 



Hab. British Honduras, Belize (Blancaneaux) ; Guatemala, El Tumbador 2500 feet, 

 San Juan in Vera Paz (Champion). 



Six examples from Guatemala and two from British Honduras ; these last and one 

 from El Tumbador are of a golden colour, with the margin of the elytra coppery-red. 

 All these specimens have the thorax rather smooth, with the shallow punctures very 

 distinct. 



My first inclination on examining these specimens was to consider varieties 5 and 6 

 as a male and female of a distinct species, with smoother thorax and more distinct 

 large punctures, having its habitat extending from Vera Cruz into British Honduras. 

 The only specimen, however, of variety 6 received with variety 7 differs considerably 

 in the sculpture of the thorax from the other specimens of variety 6. And variety 5, 

 a female, from Teapa (received with one of variety 6) has nearly the coloration of the 

 typical male, although it has the more distinct large punctures on the thorax as in 

 variety 6. 



3. Pachyschelus thoracicus* 



Oblongus, niger, nitidus ; capite thoraceque rufo-cupreis vel aureo-asneis ; elytris cyaneis, usque ad medium 



fere parallelis, postice oblique angustatis, tenuiter striato-punctatis. 

 Long. 1| lin. 



Hab. Guatemala, Capetillo, Chiacam in Vera Paz (Champion). 



The head has a small impression in front, and there are a few fine punctures scattered 

 over the surface. The thorax is very short and broad, and not so much narrowed in 

 front as in the preceding species ; there are a few fine punctures at the sides. The 

 elytra are almost parallel for about half their length, and are then obliquely narrowed 



T2 



