50 RHYNCHOPHORA. 
bisinuate base, the elytra with somewhat differently arranged markings and deeper 
punctures, and the metasternum wholly black *. 
ARNITICUS. 
Arniticus, Pascoe, Trans. Ent. Soc. Lond. 1881, p. 96. 
Parameleus, Faust, Stett. ent. Zeit. 1892, p. 33. 
In the species referred to this genus the anterior opening of the scrobes is visible 
from above, the scrobes. themselves extending forwards at the base of the rostrum 
beneath, so as to receive the first joint of the funiculus, being, in fact, W-shaped in 
both sexes. The antenne are inserted near the apex of the rostrum in both male and 
female. The tibie are more or less distinctly mucronate at the inner apical angle (at 
least in the females), the claw arising from about the middle of the apical margin in 
the female, and from at or near the inner angle in the male. 
Arniticus includes several South-American forms described by Pascoe and Faust, as 
well as Hilipus lituratus and H. perturbatus, Boh., H. arrogans, Pasc., and others. 
Two are now added from within our limits. 
1. Arniticus cingulatus, sp. n. (Tab. IV. figg. 9, ¢; 9a, profile of head 
and rostrum; 9 4, front tibia, ¢ ; 10, front tibia, 2 .) 
Oblong-ovate, black or piceous, the upper surface variegated with ochreous, whitish, and black scales, the 
whitish scales forming two narrow, sinuous, oblique vitte on the prothorax, a triangular spot on the 
scutellum, and an irregular humeral patch and a broad curved, transverse, ante-apical fascia on the 
elytra; the under surface and legs with scattered ochreous or whitish scales. Head rugose, feebly 
foveate between the eyes, which are rather narrowly separated ; rostrum about one-third longer than the 
prothorax, stout, moderately curved, rugose almost to the tip; joint 2 of the funiculus twice as long as 1. 
Prothorax transverse, rounded at the sides anteriorly, slightly constricted before the apex and subparallel 
behind ; rather sparsely granulate, and with a sharply-defined incomplete median carina. Llytra about 
one-half wider than the prothorax, subparallel in their basal half, conjointly rounded at the apex, the 
sutural angles somewhat pointed, the humeri rounded externally and truncate in front; deeply seriate- 
punctate, the interstices more or less convex, each with a somewhat closely placed series of setigerous 
granular elevations. Venter broadly depressed down the middle towards the base in the gd. Tibi 
with the claw arising from the inner angle in the ¢, mucronate in the 2. 
Length 10-134, breadth 4-6 millim. (¢ 2.) 
Hab. Guatemata, El Tumbador, Cerro Zunil, San Isidro, Panajachel, Mirandilla 
(Champion) ; Panama, Volcan de Chiriqui, Caldera (Champion). 
Found in abundance at Cerro Zunil and sparingly elsewhere, all the localities being 
on the Pacific slope. The coloration is somewhat variable, four of the specimens 
(from Panajachel, Mirandilla, San Isidro, and Chiriqui respectively) having the light 
markings pale ochreous, instead of white. A. cingulatus is extremely like the 
Colombian A. lituratus (Boh.), but that insect has a much broader prothorax, and the 
elytral setee shorter and less conspicuous. | 
* Erratum:—lIn the description of H. belti (anted, p. 15)—For “ side-pieces of the metasternum rufous,” 
read “ metasternum, the side-pieces excepted, rufous.” 
