CYCLOCEPHALA. 305 



16. Cyclocephala curta. (Tab. xvn. fig. 25, <?.) 



Breviter oblongo-ovata, flavo-testacea, glabra, vertice vis infuscato, elytris utrinque maeulis vagis (hand vittis) 

 castaneis (2 anterioribus, 1 posteriore, interdum minutis vel deficientibus) ; clypeo sicut in G. imma- 

 culata ; thorace transverso, lateribus regulariter rotundatis, grosse sparsim punctato ; elytris utrinque 

 costulis 3 sat elevatis et striis punctatis delimitatis, interstitiis grosse ruguloso-punctatis. Pygidium 

 glabrum et impunctatum. Ungues conspicue elongati. <3 . Tarsi antici ungue majore acuminate- integro; 

 antennarum clava elongata, cseteris articulis conjunctis fere sequali. $ . Elytra apud medium leviter 

 gradatim explain ato-dilatata ibique margine mediocriter angustato. 



Long. 11 millim. c? $ • 



Sab. Mexico, Tuxtla, Catemaco, Tehuantepec (Salle). Four examples. 



Bears the name C. curta, Deyrolle, MS., in the Salle collection. A Catemaco 

 specimen is figured. 



B. Antennae clava in utroque sexu parva. 

 a. Clypeus breviter semiovatus. 



17. Cyclocephala lunulata. 



Cyclocephala lunulata, Burm. Handb. der Ent. v. p. 62 \ 



Hab. Mexico, Presidio, Ventanas (Forrer), Monclova in Coahuila (Dr. Palmer), 

 Orizaba, Cordova, Tuxtla, Playa Vicente, Chiapas, Campeche (Salle), Jalapa, Misan a 

 (Hbge), North Yucatan (Gaumer) ; Beitish Hondueas, Cayo (JBlancaneaux) ; Guate- 

 mala, Chacoj, Capetillo (Champion) ; Nicaragua, Chontales (Belt, Janson) ; Costa Eica, 

 Volcan de Irazu 6000 to 7000 feet, Cache (Rogers) ; Panama, Bugaba (Champion). — 

 South Ameeica to South Brazil 1 . 



Female examples agree exactly with others of the same sex, with which I have 

 compared them, from the Amazons and South Brazil. The lateral margin of the 

 elytra in the female is sinuated below the middle, followed by a dilatation, which 

 gradually subsides behind, and there is an elongate narrow callus, sometimes only 

 slightly indicated, near the margin. The characteristic postero-discoidal circumflex 

 mark of the elytra is sometimes absent, and the elytra wholly testaceous. 



18. Cyclocephala Mgurata. 



Cyclocephala fulgurata, Burm. Handb. der Ent. v. p. 63 \ 

 Hab. Mexico, Playa Vicente (Salle). — South Ameeica, Colombia \ Amazons. 



Closely allied to the preceding, but distinguished generally by the zigzag posterior 

 fascia of the elytra. The very different position of the lateral dilatation of the elytra 

 in the female is a still more definite specific character ; this is situated far behind, 

 towards the apical curve, and is short and angular, with a smooth callus on the surface, 



19. Cyclocephala comata. (Tab. XVIII. fig. l, 6 .) 



C. lunulatce proxime afflnis et similis, sed paullo oblongior, longe fulvo-pilosa et capite toto flavo. Oblongo- 



biol. cente.-amee., Coleopt., Vol. II. Pt. 2, October 1888. 2ER 



