SCOPZOMERUS. | 539 
joint a good deal longer than the second, but much shorter than the terminal joint. 
The prosternum appears to be constructed in a similar manner to that of Scopus. 
‘The mandibles are peculiar, consisting of a stout basal part which is bidentate, and an 
elongate slender apical portion. 
All four species were found on the shady banks of streams, beneath decaying leaves. 
1. Scopzomerus chiriquensis. (Tab. XIV. fig. 2.) 
Elongatus, angustatus, parallelus, omnino subtilissime punctulatus, fuscus, antennis rufis, pedibus elytrisque 
testaceis, his ad apicem et circa suturam fuscescentibus. 
Long. 4 millim. 
Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion). 
Antennz rather stout; first joint thick, not equal to the three following ones in 
length, the third joint a good deal longer than the second, the tenth about as long: as 
broad. Head oblong, with the eyes a little prominent, very finely and densely punc- 
tured, dull. ‘Thorax slightly longer than broad, a little narrowed behind, the punc- 
tuation even more indistinct than that of the head. Elytra a good deal longer than 
the thorax, extremely finely and indistinctly punctured. The male has the penultimate 
ventral segment broadly but feebly impressed on the middle, ‘while the terminal 
segment bears an elongate very narrow excision. 
The unique example is no doubt immature. 
2. Scopeomerus guatemalenus. 
Angustulus, subparallelus, omnino subtilissime vix visibiliter punctulatus, rufus, capite elytrisque fuscis, his 
circa humeros vage flavescentibus, antennis pedibusque testaceis. 
Long. 33 millim. 
Hab. GuatTEMALa, near the city (Champion). 
This insect appears to be very closely allied to 8. chiriquensis, but is a smaller insect, 
with much feebler antenne ; the oblong head is distinctly emarginate behind. A single 
female only has been obtained. 
3. Scopzomerus palmatus. 
Angustulus, subparallelus, omnino subtilissime vix visibiliter punctulatus, rufescens, supra fuscescens, elytris 
circa humeros, pedibus antennisque testaceis, his medio fuscescentibus ; capite oblongo, angulis posterioribus 
rotundatis. 
- Long. 34 millim. 
Hab. Panama, Bugaba, San Feliz (Champion). 
This species is very closely allied to S. guatemalenus, but has a rather broader head, 
with more rounded hind angles, and the middle joints of the antenne infuscate. The 
male has a slight broad depression on the middle of the terminal portion of the penul- 
timate ventral segment, and a deep very narrow excision on the terminal segment. 
3 ZZ 2 
