HAMOTUS. 5 
two examples were obtained. The only Mexican exponent I have seen was sent to me 
by Herr Reitter, who obtained it from Hamburg. Judging from this fact and the way 
in which the specimen was mounted, I conclude that it was probably found by Herr 
Hoge at Jalapa. 
This species, though exceedingly similar to those following, is distinguished by the 
fact that the curvate sulcus in front of the base of the thorax has no definite fovea on 
the middle ; the sulcus, however, may be described as subfoveate, as it is deeper in the 
middle and in this part slightly expanded in front, this expansion being somewhat 
concealed by a gibbosity or convexity of the surface of the thorax in front of it. 
4, Hamotus vicinus. 
Rufus, elytris dilute sanguineis, pube depressa minus dense vestitus ; antennarum clava triarticulata, elongata ; 
elytris plica intra-humerali abbreviata; abdomine segmento secundo dorsali quam segmentum basale 
paullo majore. 
Long. 23 millim. 
Hab. GuatEMALA, Capetillo (Champion). 
Antenne with joints 4-8 quite similar to one another, small and transverse; joints 
9-11 forming an elongate club; the ninth joint quadrate, the tenth a little broader 
and slightly transverse, the termina] joint a good deal broader and quite as long as the 
preceding two together. Head rather broad and short, with a moderate fovea on each 
side near the eye. ‘Thorax subglobose; with a large fovea in front of the base in the 
middle connected by a fine sulcus with the lateral fovea. Elytra with a very abbreviate 
intrahumeral depression. 
Although extremely similar to ZH. tritomus, this insect is readily distinguished by the 
definite basal thoracic fovea, and the more abbreviate basal dorsal segment of the hind 
body. The last joint of the maxillary palpus is similar in form to that of H. tritomus, 
but is distinctly broader and shorter. 
Only two examples were obtained; they are quite similar to one another and of 
uncertain sex. 
5. Hamotus difficilis. 
Rufus, elytris dilute sanguineis, pube depressa minus dense vestitus; antennarum clava triarticulata, elongata ; 
elytris plica intrahumerali abbreviata; abdomine minus late marginato, segmentis dorsalibus primo et 
secundo eequalibus. 
Long. 24 millim. 
Hab. GuateMata, Zapote (Champion). 
Although only one example of this insect was obtained, and it is very similar to 
H. vicinus, yet, as 1 have failed to reconcile it therewith, and it will not agree with 
any of the other species, I treat it as distinct. It differs from H. vicinus in possessing 
a narrower hind body with less broad lateral margins, a more slender terminal joint to 
