AULETOBIUS. 43 
3. Auletobius affinis, sp. n. 
Niger, pube depressa tenuiter vestitus ; capite prothoraceque dense fortiterque punctatis ; elytris fortiter minus 
dense punctatis; tibiis tarsisque piceis. 
Long. cum rostro 3} millim. 
Hab. GuaTeMata, Rio Maria Linda (Champion). 
Rostrum rather long, moderately stout; antenne inserted a little behind its middle, 
their club rather slender; eyes contiguous with the thorax, the space between them very 
densely and coarsely punctured. Thorax slender, very elongate, a little rounded at the 
sides, deeply and very densely and coarsely punctured. Elytra rather long, of a leaden- 
black colour, much more sparingly and a little less coarsely punctured than the thorax. 
Legs rather short and stout. 
This insect has quite the facies of our European species. Only one example has 
been procured. 
4, Auletobius optatus, sp. n. (Tab. ‘II. fig. 15.) 
Pubescens, dense punctatus, opacus, fusco-rufus, capite subeenescens, elytris basin versus rufescentibus ; antennis 
b] b] 9 9 > 
pedibusque rufo-testaceis, harum clava fusca. 
Long. cum rostro 3 millim. 
fab. Panama, Volcan de Chiriqui 8000 feet (Champion). 
Antenne short, rather stout, the basal two joints of the club strongly transverse. 
Rostrum stout, rugose-punctate, opaque; eyes very convex, well separated from the 
thorax, the space between them faintly senescent, flavo-pubescent, closely punctate. 
Thorax slightly longer than broad, rounded at the sides, densely punctate, quite dull. 
Elytra sparingly punctate, obscurely variegate, the colour being more red near the base, 
fuscous towards the extremity ; the pubescence is closer and denser on the basal region. 
Legs yellow. Under surface clothed with pale griseous hairs. Three specimens; in 
the female the rostrum is a little longer and less rugose. 
Subfam. PTEROCOLINZ. 
This subfamily has hitherto consisted of a single species found in North America. 
Its position has been much disputed, Schénherr placing it with the Attelabide, Lacor- 
daire treating it as a separate tribe placed next Ceuthorhynchides, while Leconte 
placed it as a subdivision of Rhynchitide. In reality it is a very isolated form, linking 
the Attelabide satisfactorily with the Baridiide. The prosternum has the apices 
of the epimera widely separated by a broad process as in Baridiide and Attelabide. 
From the former group it differs by its straight antenne, but is connected with it by a 
peculiar undescribed genus from our region; from Attelabide the subfamily differs by 
the small coxe and the large mesosternum with extraordinarily developed side-pieces. 
GG 2. 
