10 Mr. Joseph S. Baly on the 



of the i)ale outer Hmb of the elytron, by the smaller 

 size of the spots, and by the margination of the trans- 

 verse baud. 



Spec. 8. Diabrotica Illigeri. 



Ent. Month. Mag., xxv., p. 251. 



Anguste ovata, postice paullo ampliata, convexa, flava, nitida, 

 pectore, scutello capiteque nigris, faciei basi plus minusve flava, 

 antennis ad basin piceo-fiilvis aut fiilvis, articulis peniiltimis diiobus 

 albidis; tibiis, tarsis anoque piceis aut nigro-piceis ; thorace con- 

 veso, Isevi ; elytris sat crebre punctatis, nigris, utroque limbo 

 basali, margine externo, maculis duabus infra basin oblique trans- 

 versim positis, fascia vix pone medium, utrinque abbreviata macu- 

 laque subapicali, flavo-albidis. 



Var. A. Elytrorum signaturis ampliatis confluentibus, ad basin 

 et ad marginem extensis. 



Mas. Antennis corpore paullo longioribus ; abdominis segmento 

 anali obtuse rotundato, disco leviter concavo. 



FcEM. Antennis corpore vix brevioribus. 



Long. 3^ lin. 



Hob. Amazons ; Para (Bates). My collection. 



Head not longer than broad, subtrigonate ; clypeus with a 

 strongly raised longitudinal ridge ; antennae equal to the body in 

 length in the <? , rather shorter in the $ ; filiform, the second joint 

 short, submoniliform, the third scarcely longer than the second, 

 obconic, the fourth much longer than the preceding two united ; 

 the three lower joints flavous, the ninth and tenth yellowish white, 

 the rest black. Thorax about one-fourth broader than long ; sides 

 straight and slightly diverging from the base to beyond the middle, 

 thence slightly converging towards the apex, the hinder and 

 anterior angles subacute ; disk convex, nearly impunctate. Elytra 

 oblong, moderately dilated posteriorly, moderately convex, rather 

 closely punctured. 



The dark apex of the abdomen separates this species 

 from alhofasciata ; the pale markings on the elytra are 

 also larger and usually confluent. 



Spec. 9. Diabrotica scripta, Oliv. 

 Anguste ovata, postice ampliata, convexa, flava aut fulvo-flava, 

 nitida, ano, pectore, tibiis, tarsis, scutello capiteque nigris, an- 

 tennis ad basin piceo-fulvis, articulis nono etdecimo albidis ; elytris 

 sat crebre punctatis, nigris, utroque basi extrema, limbo externo, 

 ante apicem abbreviato, maculisque tribus, vxna inter basin et 



