40 Mr. Joseph S. Baly on the 



the sbouklers, finely but closely punctured ; each elytron with a 

 broad fulvous vitta, which, commencing at the base, extends 

 downwards to rather more than half-way between the middle and 

 the apex; in addition are six small black spots, two basal, the 

 inner one common, the outer one placed on the humeral callus, 

 two just before the middle, and two half-way between the latter 

 and the apex. 



Spec. 71. Diabrotica viridula, Fabr. 

 Syst. EL, i., p. 453. 



Diabrotica ojJtiva, Erichs., Wiegm. Archiv., 1847, i., 



p. 169. 

 D. fusco-macidata, -Jacoby, Proc. Zool. Soc, 1878, 



p. 995 ; Biol. Cent. Amer., pt. vi., p. 528, pi. xxix., 



fig. 25, var. 

 D. ornat'ula, Baly, Journ. Lin. Soc, xis., p. 224. 

 Var. inconstatis, Baly, l. c, p. 224. 



Hab. Peru, Ecuador, Amazons ; also Colombia and 

 Central America. Common in collections. 



This widely-spread species varies in the coloration of 

 the antennae, tibiae and tarsi, from flavous to nigro- 

 piceous or black. Erichson describes the breast and 

 antennae as testaceous and the tibife and tarsi as flavous. 

 His description of the markings on the elytra agrees 

 with D. fusco-inaculata , Jac, var. A, in the absence of 

 the third fuscous spot. In inconstans, mihi, which I 

 have united with the present species, each elytron has 

 two large yellow patches, one basal, the other below the 

 middle, the upper one being stained at its base with 

 rufo- or nigro-piceous. D. viridula varies greatly in 

 size. 



Spec. 72. Diabrotica prolongata, Jacoby. 



Cist. Ent., iii., p. 45. 



Elongata, postice paullo ampHata, convexa, subtus nitida, flava, 

 viridi-tincta, pectore nigro ; supra minus nitida, Isete prasina aut 

 olivacea, scutello labroque nigris, antennis ad basin flavo-fuscis, ad 

 apicen pallide fiaA'is, articulis intermediis nigro-fuscis ; thorace 

 leviter trifoveolato ; elytris sat crebre punctatis, ad latera plicatis, 

 disco sulcis nonnuUis longitudiualibus obsolete impressis ; basi nee 

 non margine externo fulvo-limbatis ; utroque vitta humerali, ad 

 medium extensa, macula suturali baseos, communi, alterisque 

 discoidalibua tribus, longitudiualiter positis, uigro-piceis. 



