6 . PSELAPHIDA. 
the maxillary palpus (resembling in this respect H. tritomus), and a rather more 
slender club to the antenna. 
The example has no mark which would lead me to believe it to be a male. 
6. Hamotus monachus. 
Hamotus monachus, Reitter, Deutsch. ent. Zeit. xxvi. p. 181°. 
Rufus, elytris dilute sanguineis, pube depressa minus dense vestitus ; antennarum clava triarticulata, elongata ; 
elytris plica intrahumerali sat abbreviata; abdomine segmento secundo dorsali quam segmentum basale 
paullo minore. 
Long. 24 millim. 
Hab. Mexico, Yucatan!; Guaremata, El Reposo, Zapote (Champion). 
This insect presents the closest resemblance to H. vicinus and H. tritomus; from the 
latter it is readily distinguished by the definite thoracic fovea; from the former it 
presents the following distinctions:—The terminal joint of the maxillary palpus is 
rather more elongate, the intrahumeral depression on the elytra is prolonged to form a 
short but definite plica, and the first dorsal segment is more elongate and evidently 
longer than the second. 
The unique example transmitted to me by Herr Reitter is a female, and is remark- 
able from the elongation of the apical segments of the hind body. ‘This was the only 
sex known to Reitter. Mr. Champion met with only two examples, both males, the 
whole of the ventral plates being rather broadly and deeply impressed along the middle. 
The typical example received from Herr Reitter and the individual found at El Reposo 
by Mr. Champion are both darker in colour than I have described above; but this, I 
believe, is chiefly due to their imperfect preservation. 
7. Hamotus latipalpis. 
Rufus, elytris dilute sanguineis, pube subtili depressa vestitus; antennarum clava triarticulata, elongata ; 
elytris plica intrahumerali abbreviata; abdominis segmento basali dorsali quam segmentum secundum 
minore. 
Long. 24 millim. 
Hab. Guatemata, Zapote (Champion). 
Extremely similar to H. vicinus, but with very important distinctions :—The pubes- 
cence of the surface much finer and shorter; the eyes larger, and placed quite at 
the hinder part of the head; the terminal joint of the maxillary palpus remarkable on 
account of its very short broad form, being in fact nearly as broad as long, so that its 
extremity is not acuminate; and the basal dorsal segment is abbreviate. 
Only one example, of uncertain sex, was found. 
8. Hamotus curtipalpis. 
Rufo-brunneus, elytris sanguineis, pube subdepressa vestitus ; antennarum clava triarticulata, elongata; elytris 
