90 TRIPLAX. 



Triplax japonica.* 



Tr'iplax japonica, Crotch^ Eat. Mo. Mag. ix. 189. 

 Jajmii (Lewis). 



Triplax coUaris. 



Silpha collaris, Schall. Act. Hall. i. 256 (1783). 



Triplax , Bed. Abeille, v. 36. 



capistrata, Lac. Erot. 217. 



France, Germany, Austria, Dalmatia. 

 At once recognised by its black head. 



Triplax sibirica, sp. n. 



Ovata, subdepressa, nigra, antennis pedibus tboraceque ferru- 

 gineis, hoc antice posticeqiie nigro, valde transverse, sat crebre 

 punctulato; scutello magno, nigro, fere l?evi; elytris basi denticu- 

 lato-marginatis, subtiliter punctato-striatis, interstitiis parce punc- 

 tatis, circa scutelhim confuse punctatis. L. LHin. 



L. Baikal (Maack). 



The depressed ovate form conjoined with the black head will at 

 once distinguish it. 



Triplax flavicollis. 



Triplax Jlavicollis, Lac. Erot. 218. 



, Lee. J. Phil (2) I. 71.— Proc. Phil vii. 162. 



, Crotch, Tr. Am. Ent. Soc. 1873, 358. 



Var. conftnis , Lee. Proc. Phil vii. 162. 



Pennsylvania, New York, Washington, Illinois, etc. 



Triplax Goudoti. 



Triplax Goudoti^ Lac. Erot. 205. 

 Madagascar. 



Triplax omogera. 



Triplax omogei'a, Lac. Erot. 206. 

 Madagascar. 



Triplax paiixilla. 



Trijylax pauxilla, Lac. Erot. 207. 



Madagascar. 



Under-side as in T. omocjera. Mcntum quadrangular. 



