Longicornia nf Mexico and Central America. 179 



elevated, cand the elytral apex transversely truncated, 

 with both sutural and exterior angles nearly rectangular 

 and equal. In /. cceridcscens the elytra are very obliquely 

 truncated, with prolonged external angles. 



Sphenotliecus quadrivittatus, n. sp. 

 S. cyanicolli (Dup.) affiiiis et similis, set! diffcrt elytris utrinque 

 vittis costiformibus flavis duabixs. Cyaneo-niger politus, subtus 

 cum antcnnis pedibusque niger, elytris utrinque vittis convexis 

 duabus flavis — Ima prope suturam basin versus paullo dilatata 

 apicemque baud attingenti, 2nda submarginali angustiori postice 

 multo abbreviata. Thorax sicut in S. cyanicolli in medio perparum 

 rotundatus, antice paullo angustatus subsparsim punctulatus. Ely- 

 tra costis kevibus, interspatiis pilifero-punctulatis, ad apicem valde 

 flexuoso-truncata, angixlis externis acute suturali brevissime den- 

 tatis. Long. 14—17 millim., «? ? . 



IJah. Mexico, Dos Arroyos, E. Papagaio (1200 ft.), 

 Venta de Pelegrino, Rincon (2800 ft.), Acaguizotla 

 (3500 ft.). Hacienda de la Imagen (4000 ft.), and Aca- 

 pulco, all in Guerrero {H. II. Smith). 



Sphenotliecus crihricolUs, n. sp. 

 S. quadrivittato similis, elytris utrinque flavo-bicostatis ; differt 

 tliorace dense subrugose puuctato, subopaco. Niger, elytris utrin- 

 que vittis duabus elevatis flavis. Caput anteuuarumque basis 

 dense confluenter punctata. Thorax latior, et in medio latius rotun- 

 datus, disco posteriori foveatim depresso. Elytra vittis flavis 

 utrinqvie ad apicem approximatis, interiorique basi baud dilatata, 

 interspatiis densius punctatis, in medio inter vittas linea subelevata 

 iinpunctata, ad apicem obtusius truncata, angulis externis hand 

 producto-dentatis. Hnbtus sat dense punctulatus, punctulis griseo- 

 piliferis. Long. 14—16 millim., <? ? . 



JIah. Mexico, Venta de Pelegrino, Dos Arroyos 

 (1000 ft.), and Ticrra Colorada (2000 ft.), all in Guerrero 

 {II. II. Smith). 



Sphenothecus crihellatus, n. sp. 



Cyaneus, dense pilifero-punctatus pilis elongatis crectis inter- 



mixtis, subopacus ; elytris utrinque vittis elevatis duabus flavis 



kevibus, interiori subrecta apicem fere attingenti et flavo-margi- 



nata, exteriori tcnui postice abbreviata. Caput autennarumque 



