494 SEEEICOENIA. 



carinate, the carina extending forwards to the middle of the prothorax ; the surface rather sparsely 

 punctate (the punctures coarser and closer in some specimens than in others), a narrow space down the 

 centre, and sometimes a small space on either side of the disc before the middle, impunctate, very distinctly 

 canaliculate. Elytra from two and two-thirds to three times the length of the prothorax, rapidly narrowing 

 from a little below the base, the apices rather narrow; very finely punctate-striate, the punctures 

 becoming coarser towards the sides and apex, the striae very shallow or almost obsolete on the disc, 

 distinct at the apex, and deeply impressed on the basal declivity, the interstices flat and very finely some- 

 what thickly punctate. Beneath very sparsely punctured, the prosternum coarsely and closely punctate 

 in front ; the suture between the meso- and metasternum obliterated in the middle. 

 Length 11-12, breadth 3f-4 millim. ( tf $ .) 



Hab. Panama, Volcan de Chiriqui 3000 feet {Champion). 

 Var. a. The prothorax, except at the apex, and propleurae rufous or ferruginous, sometimes black at the sides. 



Hab. Panama, Bugaba (Champion). — Colombia (coll. Janson). 



Var. (Z. The prothorax, except along the margins and apex, the propleurse in part, and the sides of the meta- 

 sternum, rufo-ferruginous or rufo-castaneous ; the elytra brownish-testaceous or rufo-castaneous, with the 

 suture narrowly infuscate : the legs obscure testaceous or fusco-ferruginous. 



Hab. Nicaeagua, Chontales (Belt, E. M. Janson). 



Sixteen specimens of the typical form, four of the variety a, and four of the variety (5. 

 The punctuation of the thorax is variable, it being much coarser and closer in some 

 specimens than in others. //. auricoma may be at once known from all the species of 

 the genus described by Candeze by the almost glabrous elytra. The tufts of hair at 

 sides of the ventral segments are partly visible from above. 



8. Hypodesis vittata. (Tab. XXI. fig. 25, 8 , var.) 

 Hypodesis vittata, Cand. Monogr. Elat. iv. p. 246, t. 3. fig. 11 \ 



Hab. Mexico, San Andres Tuxtla, near Cordova (SalU 1 ); Nicaeagua, Chontales 

 (Belt, E. M. Janson) ; Costa Pica (coll. Janson) ; Panama, Volcan de Chiriqui 4000 feet 

 (Champion). 



I have seen twelve examples of this widely distributed very distinct species. The 

 piceous or black discoidal patch on the thorax varies in extent, it being in some 

 specimens reduced to four spots, and in others almost obsolete; the hind angles are 

 without distinct carina. The yellowish marginal stripe of the elytra is sometimes 

 obliterated. The abdomen and metasternum are clothed at the sides with a belt of 

 long, felted, pale golden hairs, the rest of the under surface being rather sparsely 

 pubescent. The type described by Candeze is a small male ; some of the females are 

 much larger. A specimen from Chontales is figured. 



9. Hypodesis viridipennis. (Tab. XXI. fig. 26, e .) 



Elongate, broad, robust, shining ; black, the elytra with a greenish lustre, the legs and antennae piceous ; above 

 very sparsely clothed with long, fine, decumbent yellowish-cinereous hairs, the lower surface with widely 

 scattered whitish hairs, the first four ventral segments each with a matted tuft of whitish hairs at the 



