270 RHYNCHOPHORA. 
17. Gerxus inornatus, sp. n. (Tab. XIV. figg. 33, 33 4, 2.) 
Subrhomboidal, broad, black, the tips of the tarsi obscure ferruginous ; sparsely clothed with short, decumbent, 
setiform, pallid scales, which are fine and longitudinally arranged on the prothorax, and coarser and 
intermixed with narrow black scales on the elytra, the latter with an ill-defined ochreous patch at the 
base of the second and third interstices ; the vestiture of the under surface and legs sparse and wholly 
white. Head closely punctate, foveate between the eyes; rostrum moderately curved, flattened, very 
long and slender, thickened and punctured at the base, for the rest smooth, the antenne inserted at 
about the basal fourth, the antennal club ovate. Prothorax transverse, rounded at the sides anteriorly, 
constricted and much narrowed in front; densely, rugosely punctate, and with an incomplete smooth 
median line. FElytra rather long, subtriangular, flattened on the disc; punctate-striate, the interstices 
flattened and rugosely punctate. Beneath closely, coarsely punctate, smoother along the middle. 
Prosternum with a transverse impression in front limited on each side by a short ridge. Anterior cox 
widely separated. 
Length 71, breadth 32 millim. ( 2.) 
Hab. Guatemaa, Sinanja in Vera Paz (Champion). 
One female. Larger than G. scabrosus (2), the elytra relatively longer, the 
prothorax and mesosternum without dense patches of ochreous ‘scales, the prothorax 
with a smooth median line, the rostrum longer, &c. 
18. Gereeus lineellus. (Tab. XV. figg. 1, 1a, 3.) 
9. Centrinus lineellus, Lec. Proc. Acad. Phil. 1859, p. 79‘; Proc. Am. Phil. Soc. xv. p. 3127; 
Casey, Ann. N. York Acad. Sci. vi. p. 592°; Canad. Ent. 1904, p. 323‘. 
&. Centrinus dolus, Schauf. Rev. Zool. 1866, p. 418°. 
3. Prosternum armed with two porrect spines, which are sometimes nearly as long as the rostrum, and more 
or less sulcate; first ventral segment depressed down the middle ; anterior tibie slightly hollowed towards 
the apex within and sharply unguiculate; antenne inserted beyond the middle of the rostrum. 
Hab. *Norta America, Tejon in California!?*.—Mexivo, Motzorongo (Flohr), 
Atoyac in Vera Cruz (H. H. Smith), Playa Vicente (Sallé), Cordova (U.S. Wat. 
Mus.), Teapa (Sallé, Hoge, H. H. Smith); British Honpuras, Belize, Rio Hondo 
(Blancaneaux); GuavEMaLa*, Senahu, Sabo, San Juan, Chiacam, and San Gerdnimo in 
Vera Paz, Guatemala City, Zapote (Champion), Coban (Conradt), Trece Aguas (U.S. 
Nat. Mus.) ; Nicaragua, Chontales (Janson) ; Costa Rica, Higuito, Reventazon, San 
José, Surubres (Biolley), Tucurrique, Zent, Puerto Limon (U.S. Nat. Mus.); Panama, 
Volcan de Chiriqui (Champion).—CoLoMBIa °. 
One of the commonest Centrinides in Central America, and readily recognizable by 
its sharply vittate prothorax and elytra. ‘The locality ‘‘ California” is doubtful, as 
noted by Casey*. Some of the specimens sent by Biolley are labelled as having been 
found on Polygonum puactatum and Calea axillaris. ‘The prosternal spines are very 
long and porrect in fully-developed males, as described by Schaufuss. The second 
joint of the funiculus is much shorter than the first. The length varies from 
