PHILONTHUS. 405 
I am not acquainted with any other speciesat all like this; the middle coxe are con- 
tiguous and the lateral lines of the thorax are not joined till the hind margin of the pro- 
sternum is reached. Mr. Flohr found it in ants’ nests at Jalapa. The male is figured. 
22. Philonthus scintillans. 
Philonthus scintillans, Solsky, Hor. Soc. Ent. Ross. v. p. 1817. 
Hab. Mexico 1, Puebla (Sallé). 
23. Philonthus apheles. 
Philonthus apheles, Solsky, Hor. Soc. Ent. Ross. v. p. 182, 27. 
Hab. Mexico}, Las Vigas (Flohr), Jalapa (Hoge). 
In the male of this species the front tarsi are very broadly dilated, in the female they 
are moderately broad, and in both sexes of a sordid flavescent colour. The individuals 
are similar to those of P. feralis and might easily be passed over for that common 
species. I have seen only five examples of P. apheles, four of which were found at 
Las Vigas by Mr. Flohr. 
24. Philonthus melanopus. 
Angustulus, nigerrimus; antennis sat elongatis, prothorace elongato, antrorsum minus angustato, abdomine dense - 
subtilissimeque punctato. 
Long. 9-10 millim. 
Hab. Mexico, Jalapa (Mohr); Costa Rica, Volcan de Irazu 6000 to 7000 feet 
(Rogers); Panama, Volcan de Chiriqui, between 2500 and 4000 feet (Champion). 
Antenne entirely black, third joint slightly longer than second, tenth rather longer 
than broad. Head rather small. Thorax longer than broad, slightly narrowed in 
front. Elytra longer than the thorax, quite black, rather closely punctate. 
The front tarsi of the male are very broadly dilated, and the tibize also are a little 
dilated. 
This insect is extremely similar to P. feralis, Er., but, independently of the number 
of punctures in the thoracic series, is distinguished by other good characters, the form 
being rather narrower and more parallel, the head less ovate, and the male anterior 
tarsi more dilated. It is almost equally similar to P. apheles, from which it differs by 
the rather longer antennz, more elongate thorax, and the darker front tarsi. It is 
apparently uncommon, only six specimens having been obtained. 
25. Philonthus stygialis. 
Nigerrimus; antennis elongatis, extrorsum haud ecrassioribus, capite thoraceque oblongis, abdomine dense 
subtiliter punctato. 
Long. 11 millim. 
