Goleopterological Notices, IV. 591 



the grooves, broadly convex, coarsely densely and deeply punctato-rugulose. 

 Prosternura very obsoletely impressed along the middle, separating the coxae 

 by a little more than one-third of their own width and rather narrowly emar- 

 ginate behind. Length 3.2-3.8 mm.; width 1.6-1.75 mm. 



Texas; Arizona (Tucson). 



In form and size this very distinct species is nearly similar to 

 penicellus, but the beak is shorter and the antennae of singular 

 structure. The male differs from the female in having- the anterior 

 trochanters obtusely toothed. The hind tibiae are bent outward 

 slightly and feebly dilated at apex, the internal spur not visible and 

 the apical margin transversely truncate, a peculiarity of structure 

 which is very highly developed in Eisonyx. Three specimens. 



18 Centriniis glotoifer n. sp. — Form, color, sculpture and vestiture 

 throughout almost exactly as in acuminatus, the lustre a little more shining 

 and the rugose punctures of the elytral intervals not quite so dense. Beak 

 in the male thick toward base, arcuate, not quite as long as the head and 

 prothorax, the scape short, gradually clavate, inserted at basal two-fifths, the 

 funicle robust, cylindrical, bristling with long flexible seta?, especially along 

 the anterior or internal side, the second joint but slightly more than twice as 

 long as wide, three-fifths as long as the first and distinctly longer than the 

 third, two to four decreasing in length, five to seven subquadrate, monili- 

 form, the seventh a little wider than long, the club extremely abrupt, robust, 

 elliptical, as long as the preceding four joints together, scarcely one-half longer 

 than w T ide, the sutures fine but deep, the basal joint narrower and shorter 

 than the second, the first two together composing only one-half of the mass, 

 the surface throughout polished and very sparsely pubescent, the first in great 

 part, and the second near the base, completely glabrous. The prosternum is 

 flat, with two deep approximate denuded subapical foveae, and separates the 

 coxae by one-half of their own width. Length 3.7 mm. ; width 1.8 mm. 



Texas (El Paso). 



The extreme resemblance which this species bears to acuminatus 

 in every external feature is very remarkable, in view of the equally 

 striking difference" in antennal structure, and in the more widely 

 separated anterior coxae. The single male before me has the ante- 

 rior trochanters obtusely dentate, the tooth lamelliform. The poste- 

 rior tibiae are nearly as in acuminatus, although a little shorter, the 

 posterior femora are also a little shorter thicker and with more 

 arcuate external outline. 



VI. 



19 Ceil trill lis penicellus Herbst — Kafer, VII, p. 29 (Curculio); 



holosericeus Gryll. : Sch. Cure, III, p. 760 (Centrinus); pubescens Uhler : Proc. 

 Acad. Nat. Sci., Phila., VII, p. 417 (Baridius). 



