PAEAGEILUS.— TAPHEOCEEUS. 127 



10. Paragrilus aeraticollis. 



Minus elongatus, parum convexus, sat nitidus, nigro-seneus ; capite thoraceque seneis, illo sulcato, in mare 



aureo-pubescenti, hoc basi quadrifoveata ; elytris striato-punctatis. 

 Long. 2 lin. 



Sab. Mexico, Teapa in Tabasco (S. H. Smith, Salle) ; British Honduras, E. Hondo 

 (Blancaneaux) ; Panama, Bugaba, David in Chiriqui, Taboga I. (Champion). 



The head is finely coriaceous, with not very distinct punctures placed moderately 

 close together ; in the male the face is covered with golden-yellow pubescence 

 radiating from a spot in the centre. The thorax is convex, densely and finely 

 coriaceous, with numerous scarcely raised dots, which are only visible in certain 

 lights ; there is an oval swelling at the posterior angle, with a curved impression (in 

 which there is a white line) bordering it on the inner side ; at the base there are two 

 punctiform impressions close together in the middle, and a fovea on each side. The 

 elytra are somewhat shining, the surface rather undulating or uneven, with some 

 lines of very obscure punctures. 



TAPHROCERUS. 



Taphrocerus, Solier, Ann. Soc. Ent. Fr. ii. p. 314 (1833). 



Species of this genus have been described from North and South America and 

 from Cuba. 



The Central- American species may be divided as follows : — 



I. Elytra with a lateral carina Species 1-3. 



II. Elytra without lateral carina. 



a. Elytra more or less spotted with white Species 4-6. 



b. Elytra without spots Species 7-9. 



l. Taphrocerus costatus. 



iEneus, nitidus ; thoracis lateribus basique pube grisea sparsis ; elytris purpnrascentibus, dimidio basali crebre 



punctato, apicali fere laevi, medio maculis tribus fasciaque ante apicem albis ornatis, lateribus carinatis 

 Long. 2\ lin. 



Hob. Mexico, Cordova (Salle) ; Guatemala, Coban in Vera Paz (Conradt). 



The head is longitudinally canaliculate in front, with a few hair-bearing punctures 

 at the upper part of the channel; there is a transverse band of golden pubescence 

 across the clypeus. The thorax is narrowed in front and slightly at the base, the sides 

 rounded ; the large impression at the posterior angles is rather closely marked with 

 large round shallow punctures, each puncture having a decumbent yellowish hair; 

 there are some similar punctures at the sides and near the front margin. The elytra 

 are long, rather flat, rather strongly sinuate below the shoulders, as broad at the middle 

 as at the humeral angles, narrowed beyond the middle to the apex ; each elytron has 



