BOTHRIDERES. 489 
smooth ; on the front margin there is also a smooth space. Elytra rather elongate, 
flat, a little narrowed behind, deeply striate ; the interstices very unequal in width, the 
broader of them serially punctate, the narrower resembling coste, but not more 
elevated than the others; the shoulders are a little rounded, and, curving inwards, pro- 
ject a little at the base. Under surface very shining, sparsely punctate. 
This is apparently a very variable species in size, and also, though to a less extent, 
in colour and in the punctuation of the thorax and elytra. The unique type of B. sim- 
plex, Pascoe, is extremely closely allied, but has a broader thorax, and the interstices 
of the elytra are less unequal, the alternate ones being, therefore, not like coste. 
2. Bothrideres depressus, sp. n. 
Piceus, depressus, sat nitidus, piliferus; prothorace medio denticulato, dorso obsolete impresso ; elytris striatis. 
Long. 33 millim. 
Hab. Guatrmata, Mirandilla, Pantaleon (Champion). 
Very closely allied to B. setiger, but readily distinguished by the comparatively slight 
inequalities of the alternate interstices of the elytra. . depressus, also, is darker in 
colour and more depressed in form. The thorax is very coarsely punctate, the disc 
vaguely depressed ; a larger puncture or fovea exists at the basal part of the depression ; 
there is a smooth space on the front margin. The elytra are flat, rather long, and 
distinctly striate, the strie being punctured; the interstices are a little unequal, the 
alternate. ones being slightly narrower, but not costate; the broader interstices are 
seriately punctate, but there are no punctures on the first, third, and fifth interstices. 
Under surface flattened and polished, with distant very distinct punctures (closer 
towards the extremity) and scanty setosity. Four specimens. 
3. Bothrideres parvulus, sp. n. (Tab. XV. fig. 20.) 
Testaceo-ferrugineus, subopacus, subtiliter setosus, elytrorum limbo setis erectis ornato; prothorace medio 
quadratim-impresso, impressione longitudinaliter divisa; elytris interstitiis alternis costatis. 
1 7 +114 : 
Long. 14-17 millim. 
Hab. Guatemata, El Reposo (Champion). 
This minute Bothrideres is of short form, and very distinct on account of the costate 
elytra. The antenne are small, but the club is large. The head is obsoletely punctate, 
feebly longitudinally bi-impressed. The thorax is quadrate, but a little narrowed 
behind; the angles are obtuse; the surface is densely obscurely punctate, with a large 
depression on the disc, in which there is a longitudinal elevation; there are also two 
short obscure longitudinal elevations in front of the scutellum. ‘The elytra are short ; 
the alternate interstices are elevated so as to form costz, the outer one continued ehind 
so as to form, with its fellow, a continuous margin to the apical part of the body; and 
the margin of the after-body in front has very distinct outstanding sete. Under surface 
minutely setose, very obsoletely punctate. 
BIOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 1, January 1899. 3 R* 
