278 RHYNCHOPHORA. 
Five males and three females are somewhat doubtfully referred to this species, a 
N.-American specimen of which has been sent me by Casey under the name C. perscitus. 
The males have a conical tubercle in front of each anterior coxa, the anterior coxe 
separated by about their own width, the anterior tibie rather broad and very feebly 
unguiculate, the first ventral segment without a barer space in the middle. The 
vestiture is dense and uniformly coloured. 
35. Gerzeus picumnus. 
Curculio picumnus, Herbst, Kafer, vii. p. 30, t. 99. fig. 9°. 
Baridius picumnus, Say, Descr. N. Am. Cure. p. 17°; ed. Leconte, i. p. 281°. 
Centrinus picumnus, Schénh. Gen. Cure. viii. 1, p. 221°. 
Centrinus olivaceus, Gyll.in Schénh. Gen. Cure. iii. p. 763°; Lec. Proc. Am. Phil. Soc. xv. p- 311°; 
Casey, Ann. N. York Acad. Sci. vi. pp. 575, 5817. 
Centrinus sutor, Harris, Trans. Hartford Nat. Hist. Soc. i. p-. 81°. 
Hab. Norvn Amzrica !~6 8, New York to Florida and Arizona?.—MeExico ( Truqui), 
San Rafael Jicaltepec (U.S. Nat. Mus.), Teapa (H. H. Smith), Yucatan (Gaumer) ; 
GuatemaLa, San Gerdnimo, Chiacam, Senahu, and San Juan in Vera Paz (Champion) ; 
Nicaragua, Chontales (Janson), Managua (Solari); Costa Rica, Reventazon (Biolley) ; 
Panama, Tabernilla (U.S. Nat. Mus.), Taboga I. (Champion). 
Specimens from the above-quoted localities agree with others from the United States 
sent me by Casey and Wickham as G. picumnus. They have the flanks of the pro- 
thorax excavate behind the eyes; the vestiture close, fine, and uniformly coloured ; the 
males with the prosternum deeply excavate and armed with two curved slender spines, 
the anterior tibiee without visible uncus at the apex, and the first ventral segment with 
a large, rounded, sparsely squamose space in the middle. The mandibles are toothed 
at the base beneath. 
36. Gereeus managuensis, sp. n. 
Subelliptic, piceous, the rostrum, antenne, and legs obscure ferruginous; somewhat thickly and uniformly 
clothed with small, hair-like, yellowish-white scales, which are arranged in two rows down each elytral 
interstice, the first with one line only ; the vestiture of the under surface closer and pure white. Head 
closely punctate, faintly foveate between the eyes ; rostrum rather slender, strongly arcuate, a little 
longer than the head and prothorax, the basal half closely, and the rest more finely and sparsely, punctate, 
smoother inthe 9, the antenne inserted near the middle in the g and at about the basal third in the 
2, the club ovate. Prothorax short, conical, feebly constricted in front, the basal lobe entering the 
scutellar cavity ; densely, finely punctate. Scutellum very small, squamose. 
the humeri not prominent ; finely and sharply striate, the interstices rugulosely punctate. Beneath 
densely punctate. Prosternum of the 3 shallowly sulcate and armed with two very small conical tubercles, 
which are almost hidden by the vestiture. Anterior coxe distant. Legs short; anterior tibise without 
visible uncus in either sex. 
Length 13-2, breadth jy-1 millim. (5 9.) 
Elytra rounded-triangular, 
Hab, Nicaragua, Managua (Solari). 
One pair. Smaller than G. picumnus, the vestiture of the elytra sparser, the 
