MONOTOMA.—HESPEROBANUS. 565 
Obs.—In M. Sallé’s collection there is a specimen of the female sex of a Monotoma 
labelled “* Mexico,” without other indication of locality. This example does not agree 
satisfactorily with J. munda, but it may be a variety of it. 
3. Monotoma pusilla, sp. n. 
Fusco-ferruginea, opaca, sat elongata, brevius setosa; prothorace suboblongo, minus grosse punctato, basi vix 
perspicue bifoveolata; elytris seriatim sculpturatis. 
Long. 2} millim. 
Hab. Panama, Volcan de Chiriqui 3500 to 4000 feet (Champion). 
Extremely similar to I. munda, and, like it, clothed with short sete; but MW. pusilla 
is of more slender elongate form. The head is moderately long and narrow, not 
impressed. The thorax is slender, a little narrowed in front, and slightly sinuate just 
behind the front angles, which are rectangular. 
The only example found isa male; it has a large deep fovea extending the whole 
length of the last ventral plate. 
HESPEROBAENUS. 
Hesperobenus, Leconte, Classif. Col. N. Amer. ed. 1, p. 86 (1861). 
This genus is doubtfully distinct from Europs. I have placed in it two species in 
which the anterioracetabula are very small and the upper surface strongly pubescent. 
The Rhizophagus capito of Fairmaire, referred to this genus by Horn and placed in it 
in the Munich Catalogue, is a Hurops allied to our E. obtusus and EL, bilineatus. The 
genus Phyconomus—to which Reitter referred one of our Hesperobeni—consists of a 
single N.-American species of maritime habits. 
1. Hesperobzenus subtestaceus. 
Phyconomus subtestaceus (and var. discoideus), Reitter, Deutsche ent. Zeitschr. xx. p. 299 (1876) °. 
Depressus, opacus, rufus; elytris flavo-rufis, marginibus vage fuscescentibus; capite prothoraceque crebre 
fortiter punctatis, hoc dorso planato, medio area elongata, angusta, levigata; elytris subtiliter striatis, 
striis seriatim pubescentibus, 
Long. 24-3 millim. 
Hab. Mexico! (coll. Oberthiir), Guanajuato (Sallé). 
Antenne slender, ninth joint large, tenth with the pubescent apex very minute. 
Thorax about as long as broad, distinctly narrowed behind, the front angles depressed 
and a little rounded, the impunctate area along the middle small and very ill-defined, 
with no transverse impression. Elytra flat, narrow, and parallel, the very narrow strie 
are rather deep and are made conspicuous by their pubescence; seen in one aspect, the 
elytra appear to be almost estriate, but to be conspicuously seriate-pubescent. The 
pygidium clongate, not deflexed. One pair, male and female. 
This species is readily distinguished from H. abbreviatus (Motsch.), which I take 
as the type to the genus, by the obtuse anterior angles of the thorax; the colour is 
