NEOBEOTICA. 575 



8. Neobrotica oberthiiri. 



Diabrotica oberthiiri, Baly, Trans. Ent. Soc. Lond. 1886, p. 452 \ 



Hab. Guatemala 1 , Capetillo (Champion); Costa Eica (coll. Jacoby). 



N. oberthiiri so closely resembles Diabrotica nigro-lineata, Jac, in the elytral pattern 

 and general coloration that I at first mistook it for, and indeed (ante, p. 523) quoted it 

 as a synonym of, that species. I have since discovered, accidentally, and in this I am 

 confirmed by Mr. Baly, that D. oberthuri must be placed in Neobrotica, on account of 

 the different structure of the antennae (in which the third and fourth joints are equal), 

 the deep transverse groove of the thorax, and the appendiculate claws. The discoidal 

 subsutural stripe on each elytron is sometimes interrupted in the middle. 



9. Neobrotica pallescens. 



Ovate, dilated, pale fulvous or testaceous, the head, the intermediate joiuts of the antennae, and the tibiae and 

 tarsi black ; thorax transversely grooved ; elytra finely punctured, with traces of longitudinal costae. 



Length 21 lines. 



Head entirely black ; antennae half the length of the body, the first two and the last three joints testaceous, 

 the apex of the terminal joint black, the third joint more than double the length of the second ; thorax 

 twice as broad as long, the disc with a deep transverse depression not extending to the sides, impunctate, 

 of a more reddish tint than the elytra; elytra widened posteriorly, closely punctured, the interstices 

 obsoletely longitudinally costate and slightly transversely wrinkled ; tibiae and tarsi black. 



Hab. British Honduras, E. Hondo (Blancaneaux). 



The entire absence of any elytral markings together with the colour of the antenna? 

 and tibiae distinguish N. pallescens. 



10. Neobrotica caeruleo-fasciata. 



Elongate, subparallel, pale fulvous, the head and breast black ; thorax deeply transversely grooved ; elytra 

 finely punctured, a transverse band at the base, and a narrower spot or band below the middle metallic 

 blue. 

 5 ?. Elytra with narrow longitudinal costae. 



Length 2§-3| lines. 



Head impunctate, black; eyes large; antennae pale fulvous, the intermediate joints slightly darker, the third 

 joint double the length of the second ; thorax one half broader than long, impunctate, the disc with a deep 

 transverse depression not extending to the sides ; scutellum black ; elytra very closely punctured, fulvous, 

 the basal transverse band of regular shape and occupying the first third of the entire length, the second 

 band slightly curved (not quite touching the sutural or lateral margins and placed below the middle), both 

 of a dark blue or greenish colour. 



Hab. Panama, Bugaba, Volcan de Chiriqui, Caldera, Tole (Champion). 



N. caeruleo-fasciata closely resembles Diabrotica godmani in the colour and pattern 

 of the elytra, but differs greatly in the long third joint of the antennae and the deep 

 transverse thoracic groove. I am, however, unable to say with certainty whether all 

 the specimens before me must be regarded as one and the same species, as in some 

 examples the posterior elytral band is represented by a large oval spot (as seen in 

 Diabrotica pulchella) ; in another specimen the band at the base of the elytra includes 



