680 BYRRHID#. 
This species is readily distinguished from the others having abbreviated series of 
large punctures on the elytra by its smaller size. We have only two specimens, and 
they are in a bad state of preservation, so that the condition of the pubescence cannot 
very well be made out, but it appears to be more scanty and less upright than in the 
other forms, except C. olibroides. The antenne are extremely slender and fragile, not 
at all clavate, the terminal joint not being larger than the preceding one. The 
surface is shining, the punctuation being scanty and excessively fine. The elytra, 
also, are extremely finely punctate, but there are four very abbreviated series of 
large punctures on the basal part, nearer to the suture than to the outside; these 
series are irregular, the punctures not being of equal size nor quite symmetrically 
placed. The under surface, except along the middle of the thoracic segments, is made 
dull by extremely minute punctuation and pubescence. Two specimens. 
2. Cyphonichus olibroides, sp. n. 
Ovalis, subdepressus, ferrugineus, antennis pallidis, sordide testaceis ; subtiliter parce punctatus et pubescens. 
Long. 23 millim. 
Hab. GuatEMALA, Paso Antonio (Champion). 
Distinguished from its allies by the more pallid colour, comparatively depressed 
form, and the diminished punctuation and pubescence, there being almost no 
secondary—4. ¢. larger—punctures on the elytra. The antenne are extremely slender 
and fragile, filiform, but with the terminal joint distinctly larger than the tenth. 
The thoracic punctuation is extremely fine; the punctures on the elytra are fine and 
rather numerous, and careful observation shows that one or two rather larger impres- 
sions on the disc of each elytron exist to represent the serial punctures that are found 
in the other species of the genus. The under surface is pale red and dull, being 
extremely densely and finely punctured and minutely pubescent, except along the 
middle of the sterna. I have hesitated as to whether the two examples on which I 
describe the species may be immature individuals of the following one, but I do not 
think this is the case. 
8. Cyphonichus celatus, sp. n. 
Ovalis, parum convexus, niger, pube nigro-fusca subtili subdepressa vestitus, antennis pedibusque testaceis, 
femoribus fuscis; elytris crebre punctulatis, seriebus valde abbreviatis, duabus vel tribus, perparum 
conspicuis punctorum majorum. 
Long. 24 millim. 
Hab. Guatemaa, Paso Antonio (Champion). 
This insect is of a slightly narrower oval form than C. olibroides, and, besides 
differing strongly in colour, has the punctuation and pubescence of the elytra more 
distinct ; the serial punctures are but small, fine, and few, and this character distin- 
guishes C. celatus from the following species. One specimen. 
