174 Mr. G. J. Arrow on the 



Hah. Nicaragua : Choutales (Janson) ; Panama : Cliiriqui. 



Two specimens in the British Museum formed part of 

 the Fry Collection, and a series was sent to me by Messrs. 

 Staudinger and Bang-Haas. I have placed the species in 

 Cydocephala rather than in Dyscinetus on account of the 

 laro^e, smooth clypeus, of which the suture is obliterated, 

 and the shape of the mandibles, which are bluntly produced 

 in front. In its size, shape, and general appearance the 

 insect resembles C. variolosa, Burm., but the clypeus is 

 regularly rounded and the pronotum is not margined behind. 

 The female is without the lateral expansion of the elytra 

 occurring in that of C. variolosa, and another peculiar 

 feature is found in the truncation of the uppermost tooth of 

 the front tibia of the male. 



Cydocephala latipennis, sp. n. (PI. IV. fig. 12.) 



Piceo-nigra, glabra, nitida, lata ; capite grandi, clypeo elliptico, 

 margine alte reflexo, antice impunctato, postice cum fronte et 

 pronoto minute et sparse punctatis, hujus lateribus paulo de- 

 planatis, marginatis, basi immarginato ; scutello vix puactato ; 

 elytris latis, latitudine maximo post medium ; grosse hand crebre 

 punctatis, punctis plerumque seriatim ordinatis ; pygidio glabro, 

 fere impunctato : 



cJ , tarsis anticis incrassatis, ungue majori valde incurvato, apice 

 minute fisso. 



Long. 25 mm. ; lat. max. 14 mm. 



Hah. Ecuador: Macas {Buckley). 



A single male was acquired with the collection of the late 

 Alexander Fry. It is closely related to the species just 

 described, but larger, much broader, and less strongly 

 punctured, the head, pronotum, and pygidium being very 

 smooth and shining. The last joint of the front tarsus (in 

 the male type specimen) is of enormous size. 



Cydocephala liomorpha, sp. n. 



Rufo-testacea, elytris Isete flavis, sutura marginibusque externis 

 nigris, macula juxta-scutellari ovali, alia humerali, tertia magna 

 mediana, his saturate brunneis, nigro-circumdatis, lineolaque 

 apicali nigra; corpus elougato-ovatum, fere glabrum, clypeo 

 semicirculari, subtiliter punctato-rugoso, fronte et pronoto nitidis, 

 leviter punctatis, hoc transverse, antice angustato, angulis posticis 

 toto rotundatis ; scutello distincte punctate ; elytris late sed 

 distincte lineato-punctatis : 



cJ , pygidio subtiliter coriaceo, pedum anticorum tarsis crassis, 

 ungue interno dilatato, minute fisso, tibia antica acute bidentata : 



5 , elytris extus medio obtuse angulatis, pygidio crebre punctate, 

 pedum anticorum tarsis simplicibus, tibia tridentata. 



Long. 12-13 mm. ; lat, max. 6-5-7*5 mm. 



