140 On Lamellicorn Beetles of the Genus Golofa. 



fossae margine superiore plerumque paulo aatrorsum producto ; 

 scutello parcissirae punctato ; elytris irregulariter haud profunde 

 punctatis, stria suturali distincta, apicibus crebre punctatis, pro- 

 pygidio crebre granulifero et fulvo-setoso, costis duabus nudis 

 stridulatoriis ; pygidio polito incurvato, antice longe fulvo-piloso, 

 postice nudo ; pectore abdominisque lateribus sat dense fulvo- 

 hirsutis, hujus medio nitido ; tibiis anticis dentibus 4 acutissimis 

 armatis. 



2 . Nigra, elytris castaneis, marginibus omnibus nigris ; capite 

 rugoso, anguste bilobato, medio paulo tuberculato, pronoto grosse 

 et crebre, antice et lateraliter rugose, punctato ; scutello sat 

 punctato ; elytris rugose punctatis, stria suturali Integra ; pro- 

 pygidio corporeque subtus ut in mari ; pygidio sat punctato, 

 basi fulvo-piloso ; tibiis anticis latioribus et minus acute 

 4-dentatis. 



Long. 34-36 mm. ; lat. max. 18-19 mm. 



Hab. Argentina : Cordova, Mendoza (Puerto del Inca^ 

 8900 ft.). 



With the exception of Golofa ffuildinii, attributed to the 

 "West Indies, the species of the genus are confined to the 

 mountain chain of Central and Western S. America, and 

 the present one, with G. cochlearis, Ohaus, also lately 

 discovered in the Argentine, seem to mark the farthest 

 southward extension of the genus. It is a shining insect, 

 Avith the thorax of the male very smooth and not bearing a 

 vertical horn, but with a circular cavity filled with velvety 

 pubescence and its upper edge slightly produced in a 

 horizontal direction. 



The British Museum contains two males and a female 

 which, although not taken together with either of the males, 

 is almost certainly conspecific. 



Golofa [Mixigenus) pusilla, sp. n. 



Piceo-nigra vel piceo-brunnea, elytris et pygidio l^te flavis, sutura 

 marginibusque anguste fuscis ; ovata, parum elongata ; capite 

 rugoso, clypeo truncato ; protliorace grosse et irregulariter 

 punctato, postice sublaevi, basi lateribusque rugose punctatis ; 

 scutello paulo punctato ; elytris Isevibus, subtilissime et par- 

 cissime punctulatis, liuea suturali impressa ; propygidio regu- 

 lariter sat minute granulifero, absque carinis stridulatoriis ; 

 pygidio nudo, crebre punctato ; pectore sat dense fulvo-hirto, 

 abdoraine nitido ; tibiis anticis acute quadridentatis : 



cJ , capite cornu gracili recurvato, apice acuto, postice vix perspicue 

 serrato, armato ; prothorace medio tumido, antice longitudinaliter 

 sulcato, sulco rugose punctato et parce fulvo-hirto, elevationeque 

 longitudinaliter impresso ; pygidio convexo, subtus incurvato ; 

 pedibus anticis gracilioribus. 



