ANTHONOMUS.—DIETZIA. 193 
before the base and feebly constricted in front, densely punctate. Elytra short, not much wider than the 
prothorax, somewhat rounded at the sides, the humeri not prominent; deeply punctate-striate, the inter- 
stices convex and minutely punctate. Femora each with an acute tooth; anterior tibie strongly, and 
the others feebly, sinuate within ; tarsal claws with a long tooth. 
Length 13, breadth 1 millim. (<¢.) 
fab. Guatemaua, San Juan in Vera Paz (Champion). 
One specimen, somewhat abraded. More ovate than A. squwamans, the rostrum 
longer, the squamosity less dense, the femora each with a small acute tooth, that on 
the anterior pair long, the body testaceous. 
LISTRORRHYNCHOUS, gen. nov. 
Rostrum stout and rugose for about one-third of its length, and thence to the tip smooth and slender, the 
scrobes descending to the lower limit of the eyes; antennee inserted at the apex of the incrassate portion 
of the rostrum, the scape clavate at the tip and shorter than the funiculus, the latter 7-jointed, the club 
oblong-ovate and somewhat loosely articulated ; anterior legs much longer than the others; anterior and 
intermediate tibise unguiculate, the posterior pair unarmed; tarsal claws with a long tooth; the other 
characters as in Anthonomus. 
The single species referred to this genus bears much the same relation to Anthonomus 
as Oxystoma does to Apion, except that the abrupt narrowing of the rostrum is more 
pronounced. The specimens obtained appear to be all of the same sex, probably 
females. The peculiar form of the rostrum is a remarkable character, and hitherto 
unknown amongst the Anthonomids. 
1. Listrorrhynchus subulatus, sp. n. (Tab. XI. figg. 11, 11a, o*.) 
Subovate, ferruginous, the rostrum, the outer half of the antenna, the knees, the tarsi, and the upper outer 
half or more of the anterior femora, black or piceous; sparsely, the scutellum densely, clothed with fine 
grey pubescence. Head foveate between the eyes, which are large, prominent, and rather narrowly 
separated ; rostrum moderately curved, about as long as the head and prothorax, the stout basal portion 
opaque, rugosely punctate, and longitudinally wrinkled, the smooth, slender, apical portion cylindrical 
and shining; joint 1 of the funiculus stout and obovate, 2-7 slender, 2 as long as 3 and 4 united, and 
shorter than 1, 3-7 a little longer than broad. Prothorax transverse, rounded at the sides, constricted 
and much narrowed in front, strongly sinuate at the base, densely punctate. LElytra convex, very much 
wider than the prothorax, rather short, subparallel in their anterior third, somewhat lobed at the base, 
the anterior margin a little raised inwards, the humeri rounded; deeply punctate-striate, the interstices 
convex and transversely rugulose. Legs rather slender; anterior femora strongly clavate and sharply 
bidentate, the intermediate and hind femora acutely unidentate ; anterior tibiae much curved in their 
' basal half, sinuate within. 
Length 23-23, breadth 1-13 millim. (2?) 
Hab. Panama, Bugaba, Tolé (Champion). 
Three specimens, from the savana-region of the Pacific slope. 
DIETZIA, gen. nov. 
Head large; rostrum about as long as the prothorax, the scrobes lateral, descending to the lower edge of the 
eyes, the latter large, rounded, and prominent; antennz with a 7-jointed funiculus, and a stout, compact, 
ovate club; prothorax transverse, not constricted in front; elytra broad, subeordate; prosternum very 
* In fig. 110 the relative lengths of the funicular joints is incorrectly shown. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 4, April 1908. 2CC 
