234 BllACIIELYTRA — TACIIYPORIDAE. 



tennae and legs red-yellow. More shiny than C. imniacu- 

 latus, punctuation not so close, head impunctate ; posterior 

 angles of thorax almost right angles, rather strongly promi- 

 nent ; penultimate joints of antennae somewhat broader 

 than long. L. 1 1. Rather common. C. 2)edicularius,Gi: 



b. Elytra with a red spot. 



Black, shiny ; elytra with a reddish spot at base, gene- 

 rally continued along suture ; al)domen with apex and 

 margins of segments reddish-brown ; antennae yellow- 

 brown, middle darker ; legs yellowish-red. Head and 

 thorax diffusely, scarcely perceptibly punctured, latter with 

 posterior angles bluntly rounded, only slightly produced ; 

 elytra moderately closely and finely punctured, one-third 

 longer than thorax ; penultimate joints of antennae sliglitly 

 transverse. L. 1 1. Scarce. C. bipunctatus, Gr. 



Tachyporus, 



A, Head red-yellow. 



a. Basal half of elytra black. 



Red-yellow ; basal half of elytra, breast and apex of 

 abdomen black. Elytra half as long again as thorax. L. 

 If 1. Common. T. ohtusus, Lni. 



b. Base of elytra only narrowly black. 



Red-yellow ; base of elytra (narrowly), breast, base of 

 front abdominal segments and whole of seventh Ijlack. 

 Elytra half as long again as thorax. L. If 1. Not common. 



T.formosus, Mat. 



B, Head Ijlack or dark brown. 



a. Abdomen black, except posterior margins of segments. 

 I, Thorax entirely red-yellow or yellowish-red. 

 1. Length 1| lines. 



A A. Black line at side of elytra feeble (jr 

 absent ; antennae unicolorous red-yellow. 

 Head black, mouth yellow-red ; elytra yellowish-red, 

 with neighbourhood of scutellum and sides (latter feebly) 

 black, one-third longer than thorax. Not uncommon. 



T. solutiis, Er. 



li JJ. l)lack line at side of elytra distinct ; an- 

 tennae brownish toward apex. 



