334 HETEKOMEKA — PYTHIDAE. 



rytlio. 



Black, shiny, not pubescent; mouth, antennae, tibiae 

 and tarsi rust-red ; abdomen wholly or partly yellow ; 

 elytra blue, sometimes reddish-yellow-brown at base; 

 margins of thorax occasionally red-yellow. Elytra with 

 deep punctured striae. L. 4| — 5| 1. Not uncommon. 



P. depressus, Lin. 



Salpingiis, 



A* Labrum as broad again as long. 



a. Lateral impressions on thorax before middle as strong 

 as, or stronger than those behind middle ; reflexed 

 margin of elytra very narrow from base of abdomen. 



I, Sides of thorax with a distinct impression before 

 middle and sometimes a feeble one behind middle ; 

 elytra with regular rows of punctures from base. 



Metallic-black, sometimes pitchy; tarsi (occasionally legs) 

 and base of antennae red-brown. Thorax scarcely so 

 broad as head ; elytra sometimes with a feeble depression 

 before middle. L. 1\ — 1| 1. Not common. 



S. Liter, Payk. 



II. Sides of thorax with a distinct impression before 

 middle and another nearly as distinct behind middle ; 

 elytra confusedly punctured at base. 



Bronze or dark bronze ; antennae (except apex) and legs 

 (sometimes except femora) brown-red. Thorax scarcely 

 broader than head ; elytra with a transverse depression in 

 middle. L. 1\ — 1| 1. Eare. S. aeratus, Muls. 



6. Lateral impressions on thorax before middle feebler 

 than those behind middle ; reflexed margin of elytra 

 narrow from apex of third ventral segment only. 



Dark brown, shiny ; base of antennae and greater part of 

 legs paler. Thorax broader than head, with an indistinct 

 impression before middle of side and a stronger one (often 

 connected by a furrow with that on other side) behind 

 middle ; elytra confusedly punctured at base, often with 

 a feeble transverse depression before middle. L. 1;^ — 1| 1. 

 Rather common. S. castaneus, Panz. 



jB. Labrum less than half as broad again as long. 



