488 STAPHYLINIDA. 
on them is a sutural and a discoidal series of rather obsolete but setigerous punctures ; 
their colour is not so beautiful as that of the head and thorax. Hind body with the 
terminal segment and part of that preceding it bright red. In the male the head is. 
much broader, and behind the eyes at the sides the surface is somewhat depressed and 
finely strigose so as to give it a silky opacity; the whole of the underside, except the 
proximity of the gular suture, is similarly strigose and opaque. 
I have a series of eight examples of this brilliant insect before me; they vary in the 
extent of red colour at the extremity of the hind body; and the example from Costa 
Rica has the anterior parts of a greenish instead of a violaceous hue, but I do not see. 
any grounds for treating them as more than one species. Xantholinus erythropygus, 
Chevr. MS., is an allied species. The example figured is a female taken on the Volcan 
de Chiriqui. Found in dung in the forests. 
2. Hymeneus splendens. 
Nitidissimus, niger ; capite, thorace elytrisque leete cyaneis, abdominis segmento ultimo rufo; capite ad angulos: 
posteriores denticulato. 
Long. 16 millim. 
Hab. Nicaragua, Chontales (Janson). 
I have seen only a single female of this species; and the only important characters 
by which it is distinguished from H. godmani are that the space between the frontal 
grooves is depressed behind, the hind angles of the head are denticulate, and the 
punctures on the vertex less numerous; probably the male will show more marked 
distinctions. 
3. Hymeneus divisus. 
Nitidissimus, niger; capite thoraceque violaceo-cyaneis ; elytris cyaneis, fere impunctatis; capite ad angulos. 
posteriores fortiter denticulato. 
Long. 16 millim. 
Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 
Of this species also only a single female has been procured ; it has the frontal grooves 
finely sculptured and opaque, and the posterior part of the space between them separated 
from the anterior; the hind body is entirely black; in other respects it agrees with 
H. splendens. 
4. Hymeneus cephalotes. (Tab. XIII. fig. 2.) 
Nigerrimus, nitidus; elytris elongatis, viridibus; abdominis apice rufo-testaceo. 
Long. 20 millim. 
Hab. Nicaracua, Chontales (Belt). 
This is a remarkable species, of which only a single male example has been obtained, 
and the description of the head of this sex will probably only partially apply to the 
