'.)6 ORDER COLEOPTERA. 



Pj rochroidae. 



Body narrowed in front, and flattened j neck distinct; thorax suborbicular ; antennas 

 rather longer than tlie head and thorax, pectinated in the males. 



Demjroides canadensis (Lt.). ( Plate x\v, fig. 2.) 



Eye- \>-v\ large, nearlj meeting above and below . terminating sharply beneath and rounded 

 above : thorax rufous and punctured : elytra chestnut brown, glossy, beautifully 

 punctured and long, and larger than the abdomen ; antennae distantly pectinated. 



(Jims V\ UOCHROA (Fab.). Cantiiaris ( Lin.). 

 Antenna rather longer than the head and thorax, pectinated in the males : eyes distant. 



Pyrociiroa flabellata. (Plate XXV, fig. 4.) 



F.\ ■. 5 in the males distant, but large : antenna i" ctinated : head and thorax rufous : el] tra 



black of dark brown, finely punctured, and extending beyond the abdomen; thighs 



banded with rnfousat b<>th extremities ; antennae black, rufous a1 base ; last segment 



of the abdomen brownish. 



Cantharidae. 



The cantharides, or blistering flies Used in medicine, are represented amongst us by the 

 allied genus fipicAUfA, having the same property of raising blisters. The) are slender 

 ■ bodied insects, With slender legs, the prothorax narrowed before, and the head large. 

 They are at times abundant upon potato vines, whence they have acquired the name of 

 potato fly. particularly the Epicauta vittata : it attacks Ihe potato, convolvulus, and other 

 plants, from June t<> September. It may, with the other species, be collected with a muslin 

 having the month attached to a hoop; thrown into water to prevent escape, and 

 Btibsequently scalded and dried for the use of the druggist. 



Epicauta vittata. ( Plate v, fig. 14.) 



Color black : third joint Of <he antenna* longest : front of the head marked by two black 

 kidneyform spot- : thorax furnished with a small labial tubercle, and marked with 

 three feseeus -t ri] >«=, the two lateral ones obscure ; the middle of the thorax promi- 

 nent. Elytra margined all around with fu-eous border, and marked in the middle with 

 a stripe of the same color : thighs fuscous at the articulation ; lower extremities and 

 tibia- and tarsi black. Length six-tenths of an inch. 



