296 LAMELLICOENIA. 



GENIATES. 



Geniates, Kirby, Trans. Linn. Soc. xii. p. 401 (1818) ; Burmeister, Handb. der Ent. iv. 1, p. 506 ; 

 Lacordaire, Gen. Col. iii. p. 386. 



This genus is nearly confined to Southern Brazil, twenty-nine out of the thirty-two 

 species described being from that region. Of the other three one is from Monte 

 Video, one from Colombia, and the third from New South Wales. The locality of 

 this last rests on the same authority as that of Tahiti for a species of Leucothyreus, viz., 

 Bohem an, in the 'Voyage of the Eugenia.' The species are nearly all of large size 

 except the following, which is an inconspicuous form connecting the genus with 

 Leucothyreus, and smaller than the average of the Leucothyrei. 



l. Geniates spinolse. 



Geniates spinolce, Burm. Handb. der Ent. iv. 1, p. 508 l . 

 Hal. Panama (coll. Bates). — South America, Colombia 1 . 



Fam. DYNASTIM!. 



Subfam. CYCLOCEPHALINM 

 ASPIDOLEA. 



Corpus oblongum. Caput magnum ; elypeo maximo, transversim quadrato, antice haud angustato, angulis rotun- 

 datis, margine antico recto minime reflexo. Mandibulae quam clypeus multo breviores, tenuiter laminatas, 

 basi intus rotundatae, apice gradatim acuminatae, intus ciliatae. Maxillae lobo rotundato laminiformi, 

 apice longissimo et dense penicillatee, omnino inermes. Mentum breve transversum, late cordiforme, apice 

 late sinuata et ciliata, parte ligulari utrinque apud angulos distincta, dilatata. Pedes prsecipue tibiae 

 posticae graciles ; tarsi postici articulo primo extus apice paullo producto. Caetera sicut in Cyclocephala. 



The species on which this genus is founded differs but little in facies from Cyclo- 

 cephalce of similar slender form and uniform coloration, but its many structural 

 peculiarities necessitate its removal from that group. The unarmed maxillae are 

 unarmed in a widely different manner from those of Ancognatha scarabceoides and its 

 immediate allies, where they remain elongate and robust, though destitute of teeth ; it 

 more nearly approaches the form existing in C. fuliginea, in which, however, the upper 

 inner angle of the shortened lobe is armed with two strong teeth. It is possible, 

 judging from the description, that C. pelioptera and C. clypeata (Burm.) belong to 

 Aspidolea. 



1, Aspidolea singularis. (Tab. XVII. fig. 11, a.) 



Gracilis, oblongo-ovata, fulvo-testacea, vertice nigro, subtus castaneo-fusca vel nigra, abdomine apice et pygidio 

 rufis, pedibus castaneo-fuscis vel rufis ; elypeo confluenter punctulato ; thorace punctata, angulia posticis 

 rotundatis; elytris subtiliter punctulato-alutaceis, eeiiceo-nitentibus, striisque geminatis et interspatiis 

 purictatis ; pygidio sparsim punctato, nitido, 3 postice valde convexo, $ medio declive ; pectore nudo, 

 nitido. <S . Tarsi antici ungue majore profunde fisso, dente superiore sat robusto. 



Long. 15-17 millim, $ 2 • 



