CYCLOCEPHALA. 309 



28. Cyclocephala picta. (Tab. xvm. fig. 7, <? .) 



Cyclocephala picta, Burm. Handb. der Ent. v. p. 68 l . 

 Hab. Mexico \ Orizaba (Salle). 



29. Cyclocephala conspicua. (Tab. xvm. fig. 8, <s .) 



Cyclocephala conspicua, Sharp, Journ. Linn. Soc, Zool. xiii. p. 135 \ 

 Hab. Nicaragua, Chontales (Belt 1 , Janson). 



30. Cyclocephala atripes. (Tab. XVIII. fig. 9, <j .) 



Brevius oblongo-ovata, fulvo-testacea, capite toto, elytrorum margine angusto basali et laterali (prope humeros), 

 pectore lateribus pedibusque toto, nigris, palpis antennisque piceo-rufis ; clypeo transversim quadrato, 

 apice late sinuato ; tborace brevi et lato, disperse punctato ; elytris utrinque striis punctatis geminatis 

 tribus, interspatiis minutius et crebrius punctulatis, versus basin et suturam punctis majoribus inter- 

 mixtis. $ . Pygidium mediocriter convexum, setifero-punctatum. 



Long. 17 millim. 3 . 



Sab. Nicaragua, Chontales (Janson). 

 Two males only. 



31. Cyclocephala ligyrina. (Tab. XVIII. fig. 10, c? .) 



C. variolosa} (Burm.) affinis, sed robustior tboraceque basi haud marginato. Oblonga, convexa, postice paullo 

 ampliata, piceo-rufa vel nigra unicolor ; capite cum clypeo paullo convexo, sparse puuctulato, clypeo antice 

 paullo angustato, angulis rotundatis, margine apicali sinuato ; thorace sparse punctato, lateribus leviter 

 usque ad angulos obtusissimos posticos rotundatis; elytris utrinque striis punctatis geminatis tribus, 

 interspatiis et limbo lato laterali confuse punctatis, punctulis minutis intermixtis, punctis majoribus 

 circularibus et umbilicatis ; pygidio sat regulariter subdense punctato. Mandibulse fere sicut in G. 

 mafaffa, sed extus minus sinuatse ; ligula augusta, subconcava, margine antico rotundato et leviter inciso ; 

 tibiae anticaa dentibus 3 robustis prope apicem approximate. 6 ■ Tarsi antici articulo unguiculari cum 

 ungue majore valde incrassato, hoc apice fisso ; tarsi postici nee elongati nee subtus ciliati ; pygidium 

 parum convexum. $ . Pygidium longitudinaliter haud convexum ; elytra margine laterali a basi usque 

 longe ultra medium gradatim dilatato et incrassato, subito terminato, striaque marginali profunda. 



Long. 25-26 millim. 6 $ • 



Hab. Nicaragua, Chontales (Belt) ; Panama, Chiriqni (Trotseh). 



Three examples. This species very closely resembles the South-Brazilian C. variolosa, 

 the female of which has a similarly thickened and to beyond the middle gradually 

 widened lateral margin ; but the latter is strikingly distinguished by the uninterrupted 

 basal margin of the thorax, a most unusual character in the genus Cyclocephala. 



32. Cyclocephala proba. (Tab. XVIII. fig. 11, $ .) 



Cyclocephala proba, Sharp, Journ. Linn. Soc, Zool. xiii. p. 135 \ 

 Hab. Nicaragua, Chontales (Belt 1 ). 



Similar in colour and sculpture to the preceding, but a relatively shorter insect, and 

 differing in the broader and more quadrate form of the clypeus. It is a more aberrant 



