Uhynchotal family Capsidm Audi. 251 



the vertex is not glabrous, and is somewhat pilose. In 

 affi.nis the 1st segment of the antennas is thicker in pro- 

 portion than in aurora, and moreover in the latter the 

 2nd segQient is about f longer than the 1st, while in 

 ajffinis it is 2| (or nearly) times as long as the 1st. Mr. 

 Distant had only carded specimens (as is also the case with 

 mine), and full structural details are therefore still want- 

 ing. It is possible that amethyshis and aurora will be 

 placed ultimately in a separate genus. 



Resthenia, Spinola. 

 The type of this genus is : 



12. R. scutata, Spinola. 



1837. Essai sur les Hemipteres, p. 185, from Brazil, not 

 included in Atkinson's Catalogue, and not mentioned, so 

 far as I know, by any authors since A.myot and Serville. 



13. B. simulacrum, sp. nov. 



Very like B.luteigera (Stal), from Mexico, in appearance, 

 but structurally ditferent and distinguished at once by the 

 black head. 



Head, eyes, antennae, a large triangular spot on pronotum (occu- 

 pying the whole of the posterior lobe except the sides), scutellum, 

 apical half of clavus, a broad transverse band on middle of coriiun, 

 cuneus (except exterobasal angle), legs entirely, dead black. Collar, 

 callosities, lateral margins (widely) of pronotum, base of clavus and 

 corium, apical 3rd also of the latter, prosternum (mesosternum less or 

 more), bright luteous obscurely and faintly mottled with orange-red. 

 Membrane dark fumate. Abdomen beneath obscure pallid smoky. 

 Second antennal segment as thick as the 1st, 2f longer than the 

 latter, .3rd twice as long as the 1st. Pronotum \ longer than the 

 1st segment, acutely reflexed anteriorly at the sides of the callosities, 

 somewhat obtuse (not reflexed) posterolaterally. 



Long. 10 mill. 



Hob. N. Brazil, Itaituba. 



The black markings on pronotum, scutellum and elytra 

 bear a ludicrous resemblance to the head and shoulders of 

 a man in a pith helmet. 



