14 COLEOPTERA CHLAMYDAE. 



hump are nearly bare and rugosely punctate, lateral tubercle 

 plain, of the elytral lines the two above mentioned are by 

 far the most prominent, the others being rather broken, the 

 median shows a faint tubercle at either end, the apical being 

 costiform, the punctuation has a tendency to become reticu- 

 late at the rear, the pygidium is coarsely pubescent with an 

 obsolete median carina. 



Should be placed near stygia Lac, and is easily distin- 

 guished among the Mexican forms by the golden pubescence. 



Chlamys pilosicollis nov. sp. Elongate, opaque black, antennae 

 (except last three joints), palpi and tarsi fulvous, anterior part of the 

 head and thorax with very fine sparse yellow pubescence or setae, 

 suture smooth ; prosternura gradually narrowed to a fine point and 

 punctate, with golden setae ; length 3 mm. 



Type.— 6^ ; Costa Rica (P. Biolly), No. 206; three cf 

 specimens. 



Head closely and finely punctured, antennae with 2d joint 

 stout, obconic, 3d and 4th rather elongate and slightly thick- 

 ened triangularly, following transverse and dilated, thorax 

 finely punctate, becoming rugose on the front and apex of 

 the hump, which is rounded, well limited by the basal sulcus 

 and with a well defined median sulcus which is obsolete 

 before the anterior edge, lateral tubercle well marked, elytra 

 quadrate, very slightly compressed behind the shoulders, 

 the sutural and median lines plain, transversely connected 

 at middle, the latter costiform at apex, the other lines trace- 

 able, but not marked and much broken, no tubercles of any 

 prominence, pygidium thickly punctate, finely tricarinate, 

 the lateral carinae more or less obsolete, body beneath 

 coarsely reticulate, the mestasternum with more or less 

 golden setae, the front and middle femora are obsoletely 

 rufous. 



C. inconspicua Jac. closely resembles this species, but the 

 yellow setae will serve to separate it ; should be placed near 

 aiireopilosa supra. 



Chlamys siniilis nov. sp. Opaque black, tinged with brown, 

 antennae, except the tip, labrum, mouth parts and tarsi wholly, and 

 anterior and middle legs partially, fulvous ; thoracic hump rounded ; 



