76 ‘ MALACODERMATA. 
but has not the breast fuscous, nor the narrow, even thorax, with a broad black vitta, 
of that species. 
Section II. b. Elytra parallel or narrowed towards the apex ; not shortened, nor 
lancet-shaped. 
24. Chauliognathus terminalis. 
Niger ; pectore, abdominis basi, prosterno, prothoracis angulis posticis, et elytris (triente apicali excepto) 
flavis. Long. 12-14 millim. 6 9. 
Hab. Nicdracva, Chontales (Belt); Costa Rica, Cache (Rogers). 
Somewhat resembling C. dimidiatus, but narrower and more parallel. The head is 
very long, black, piceous beneath. Thorax with the upperside of the pronotum black, 
but more or less indeterminately fulvous at the base. Breast and first three segments 
of the abdomen yellow; but the centre of the metasternum is black in some examples, 
and in one the underside has all the paler parts fuscous, possibly owing to dis- 
coloration. | 
I have only seen three specimens, with the exception of an old one in my own | 
collection. 
25. Chauliognathus collaris. 
Niger; prothorace rufo, suborbiculari, nitido, punctis duobus nigris; antennis corporis longitudine. Long. 
12 milliim. ¢. 
Hab. Muxico, Cordova (Sal/é). 
Readily distinguished from any other species of the genus by the nearly totally black 
colour, with the exception of the thorax the only parts which are not so being the 
lateral edges of the ventral segments, which are yellow, especially the ones near the 
base and their margins, which are extremely narrowly yellow. ‘The legs are long, and 
the tarsi are longer than usual; the claws are yellow. 
A single specimen in Sallé’s collection is all that I have seen. 
26. Chauliognathus aterrimus. 
Ater; tuberculis antenniferis, maculis minutis singulis in coxis anterioribus, et limbo ventrali anguste flavis. 
Long. 11 millim. ¢. 
Hab. Muxico, Puebla (Sailé). 
A narrow parallel species, with the head moderately elongate, black, with the 
exception of the spot at the insertion of the antennew. The thorax has the sides and 
base margined and a little reflexed, the front nearly plain; in the two male examples 
before me it is a little longer than wide, the margin scarcely shining. Flytra dull deep 
black. Underside and legs totally black, the lateral margins of the abdominal plates 
alone excepted ; the apical valvular one is quite black. 
