170 SCAPHIDOMOllPHUS. 



Scaphidomorphus bitseniatus. 



Scaphidoinorphus hitceniatus, Lac, Erot. ^i'S^. 

 Bolivia. 



Scaphidomorplins Merbstii. 



Scajjhidomorphus Ilerhstii, Lac. Erot. 486. 



crabronoides, Lac. Erot. 487. 



Chiquitos, Bolivia, Amazons (Bates). 



DitFers from A', hiio^niafus by the pale epipleurse. Tlie bands 

 ^aiy bnt are never denticulate as in S. hitceniatus. 



ScapMdomorpliiis Buponciielii. 



Erotijliis DuponGJieUi, GJtev. Col. Mex. ii. 4. 

 ScapJddomorpliUS — , Lac. Erot. 488. 

 Mexico. 



Var. tliorace nigro, lateribus anguste nigris, eljtris macula 

 apical i obsoleta. 



Scapbidomorplius xantbomelas. 



Scapliidortiorplius xanthomelas, Crotch, Cist. Ent, 150. 

 Nicaragua (Janson). 



Scapbidomorphus undatus. 



Erotylus undatus, Fah. Syst. El. ii. 8. 

 ScapJtidomorphus — , L^ac. Erot. 491. 

 Erotijlus jyrcmistus, Dup. Erot. 26, T. ii. f. 45. 

 ScapJddoinorphus — , Lac. Erot. 490. 

 z'ujcena, Lac. Erot. 492. 



Cayenne, Amazons (Bates), Columbia. 



This species is perhaps the most variable of the group ; the 

 only constant characters I find beyond the smooth surface and 

 finely punctate-striate elytra, are the black dot on the vertex, the 

 testaceous under-side, with a small black spot on the prosternum 

 behind the coxae under the femora, and the more or less black tibiae. 

 1 have separated the following forms ; 



A. nndatiis. Thorace puncto antico et postico, uncoque utrin- 

 que nigris ; elytris basi maculis 3, fascia media, alteraque pone 

 medium undatis nigris, apice sufFuso, tibiis basi nigris. L. 5 lin. 



Var. The hook on the thorax reduced to a point, the basal 

 dots of the elytra forming a waved fascia, the apical suffusion 

 extending to the 2nd fascia. 



