152 MALACODERMATA. 
the thorax being punctured though very closely, the form of the central fascia, which 
is indented on its basal side, where it narrows to the suture, the projecting angle 
touching, or nearly reaching, the lower subscutellar spot, and the presence of an actual 
white subapical fascia (not merely a fascia of pubescence) ; the elytra are substriate at 
the base, and at the humerus the punctuation is distinct though close and confluent. 
I think these points will distinguish this, with the aid of the figure. The latter is that 
of a Zapote specimen. The base of the elytra is not tuberculate. 
12. Clerus cautus. 
Nigro-piceus, nitidus ; elytris striga basali minuta eburnea elevata, maculaque hamata juxta scutellum sub- 
flava, fascia mediana, ad suturam recurvata, albida, apice cinerea pubescente ; pedibus et antennis piceis 
obscuris. Long. 5-7 millim. 
Hab. Guatemata, San Juan, Panzos, Teleman, Chiacam, Senahu (Champion). 
The elytra are longer than in C. #-album, and the whole insect is more shining; the 
elytra have a faintly raised tubercle, in which the basal striga terminates. The pale 
mark which forms the bottom of the hook curves backwards towards the humerus ; this 
character will always separate this from any of its allies yet known to me. 
13. Clerus bicarinatus. 
Niger, nitidus; prothorace antice valde constricto, elytris striga basali eburnea, valde elevata, fasciis duabus, 
una pone humerum incipiente ad suturam oblique provecta indistincta, altera mediana versus suturam 
retrorsum curvata, paulo elevata, pallidis. Tibiis, palpis antennisque basi apiceque rufis. Long. 7 millim. 
Hab. Nicaracva, Chontales (Belt); Panama, Volcan de Chiriqui (Champion). 
Very close to C. cautus, yet apparently distinct. It differs in being rather more 
shining ; the first fascia is nearly straight, oblique, not united with the basal striga, 
which is longer and more raised than in its allies. The second fascia is a little raised. 
There is no subapical one; and the apex is only narrowly and obliquely clothed with 
ashy pubescence. The legs are usually darker than in C. cautus, yet the tibie and 
trochanters are more or less distinctly red, and two specimens from Chiriqui have them 
entirely red. This species is allied to C. bélobus, Spin., a South-American species. 
14. Clerus cinereus. (Tab. VIII. fig. 5.) 
Niger ; capite prothoraceque subsequalibus, opacis, pube cinerea vestitis, nigro-pilosulis ; elytris subnitidis puncto 
basali eburneo, fascia obliqua alteraque mediana curvata concinne ornatis, apice late brevissime cinereo- 
pubescente ; pedibus, antennis et palpis nigris. Long. 5-7 millim. 
Hab. GuateMa.a, Las Mercedes (Champion); Panama, Volcan de Chiriqui (Champion). 
The figure is taken from a specimen from Las Mercedes. 
Head and thorax very even, the latter with scarcely any impressed transverse line in 
front; the base narrowed, much as in C. zebra, to which it is allied, but than which it 
is less robustly built. The slaty blue pubescence which clothes the apex of this 
