Baring 403 



elytra acutely parabolic, at the swollen humeri distinctly wider than the 

 prothorax, three-fourths longer, the apex narrowly rounded; grooves 

 moderate but deep; intervals flat, with moderate, confused and well 

 spaced punctures; claws slender and well separated at base. Length 

 (9) 3.3 mm.; width 1.7 mm. Cuba (Guantanamo). 



Recognizable easily by the long slender beak, deep emargination 

 of the basal thoracic lobe and sparse vestiture above; the surface 

 is less coarsely sculptured than in either hasinotata or pugnax. 



The following group comprising Centrinus penicellus Hbst., 

 capillatus and falsus Lee, and Jiospes, globifer, nubeculus and 

 cUentulus Csy., as well as the Mexican tonsilis Boh., and scutatus, 

 gaumeri and bicriiciatus Chmp., resembles the preceding very 

 closely, though the body is usually more rhomboidal and the male 

 never has any trace of spines before the anterior coxae; this diversity 

 or inconstancy of the species occurs in other genera, as will be noted 

 under Centrinopus, which is as unequivocally defined by the man- 

 dibles as is the present genus. 



The species which I described under the name Centrinus acumi- 

 natiis, proves to be merely the male of hospes, but I am now of the 

 opinion that nubeadus is different from capillatus, with which it 

 was united some years ago. The female of the latter is much 

 narrower than that of nubeculus, with feebler pronotal punctures 

 and with complete absence of the sutural condensation of broader 

 scales just behind the middle of the elytra characterizing nubeculus. 

 In the case of falsus Lee, its characters must be admitted to be 

 somewhat aberrant, the beak being relatively shorter and much 

 thicker than usual, the elytra less acuminate and the base of the 

 prothorax without the usual small median lobe, but it may be 

 included in Centrinaspis for the present. 



The following two species are allied to penicella: 



*Centrinaspis tomentosa n. sp. (Klug, i. litt.). — Rhomboidal, shorter 

 and relatively stouter than penicella, blacker, the legs and antennae black 

 or nearly so; vestiture white in color throughout, shorter and more even 

 above and not concealing the integuments, having on the elytra similar 

 but more developed black quasi-denuded areas, the scales of the under 

 surface more oval and denser, less elongate than in penicella; beak (cf ) 

 distinctly shorter, but little over half as long as the body, with the 

 antennae inserted at about the middle, or (9) a little longer though 

 scarcely at all thinner and very nearly as long as the elytra, with the 

 antennae inserted barely visibly behind the middle; prothorax nearly as 

 in penicella but still shorter, a third or more wider than long; scutellum 



