uncharacferised species of Diahroticd. 447 



Anteniife filiform, the third joint twice the length of the second. 

 Thorax about one-half broader than long; sides parallel and 

 slightly sinuate from the base to beyond the middle, slightly con- 

 verging near the apex ; disk smooth, deeply bifoveolate. Elytra 

 narrowly oblong, regularly elevate-vittate, the third and fifth costae 

 from the suture rather broader than the others, spaces between the 

 vittae seriate -punctate; each elytron with the outer margin and 

 two discoidal vittae, one covering the third, the other the fifth costa, 

 but united at base and apex, flavous. 



Diahrotica Fairmairei. 

 Elongata, postice pauUo ampliata, flava, nitida, pectore abdo- 

 mineque piceo-violaceis, femoribus apice, tibiis, tarsis capiteque 

 rufo-castaneis, violaceo tinctis ; thorace laevi, profunde bifoveolate ; 

 elytris regulariter elevato-vittatis, vitta tertia a sutura latiori, inter- 

 spatiis biseriato-punctatis ; violaceis aut fusco-violaceis, metallico 

 nitentibus ; utrisque limbo exteruo vittaque discoidali, apice ad 

 marginem couuexa, flavis. Long. 3f — 4 lin. 



Hah. Mexico. 



Antennae filiform, the third joint nearly three times the length 

 of the second. Thorax rather broader than long ; sides nearly 

 parallel, slightly sinuate posteriorly, slightly converging towards 

 the apex ; disk shining, impressed with two large foveas. Elytra 

 narrowly oblong, subparallel ; each elytron with eight regular 

 raised costae, the third from the suture broader than the others ; 

 rufo- or fusco-violaceoxis with a metallic tint, each with the outer 

 margin, together with a discoidal vitta, which covers entirely the 

 third costa and is confluent at its apex with the outer margin, 

 flavous. 



Nearly allied in size, general coloration, and sculpture 

 to D. innuha and conisca. Separated from both by the 

 pale head, and by the third vitta on the elytron alone 

 being broader than the rest ; in the above-named species 

 the second and third costae are both broad and of 

 equal width. 



J >i(ihr<)tie(( ciniHunilis. 

 Subelongata, postice pauUo ampliata, nitida, nigro-picea, capite, 

 scutello, pedibusque nigris, femoribus, aijice exceptis, thorace- 

 que flavis ; hoc laevi, profunde bifoveolato ; elytris oblongo-ovatis, 

 regulariter elevato-vittatis, vitta tertia a sutura quam caeteris vix 

 latiori ; interepatiis biseriato-punctatis ; piceis, subnitidis, limbo 



