PHDEROMIMUS. 449 
23. Pederomimus confertus. 
Rufus ; capite superne plus minusve nigro-subenescente ; pedibus albidis, femoribus extrorsum antennisque in 
medio fuscis, elytris apicem versus nigricantibus, abdomine ante apicem plus minusve dilute nigro-tincto ; 
prothorace seriebus dorsalibus grosse 6-punctatis; elytris profunde, fortius denseque punctatis. 
Long. 6-64 millim. 
Hab. Panama, David, Volcan de Chiriqui about 4000 feet (Champion). 
Antenne rather stout, a little thickened externally, very pale yellow, the middle five 
joints deeply infuscate, the tenth joint just about as long as broad. Head rather 
narrow, its punctures coarse. ‘Thorax slender; its punctures very coarse, the two 
dorsal series considerably more approximate in front than behind, but not sufficiently 
so to give any appearance of carination of the space between them. Elytra short, their 
hinder half vaguely black; their punctuation very coarse, close, and deep. Hind body 
with the three basal segments much depressed at the base, and in this part with very 
evident crenate punctuation. 
This species varies in the amount to which the upperside of the head and the 
posterior part of the hind body are tinctured with black. There is hardly any 
difference between the sexes, the male having only a scarcely perceptible emargination 
of the last ventral] plate. 
Eight examples were found at David, and two others on the Volcan de Chiriqui. 
24. Pederomimus ornatellus. 
Angustior, rufus; capite nigro #neo-micante » elytris abdomineque ante apicem nigris, illis basi rufa, hoc apice 
flavo; pedibus antennisque testaceis, illis medio atque pectoris lateribus plus minusve infuscatis; thorace 
seriebus dorsalibus fortiter 6-punctatis; elytris crebre punctatis. 
Long. 73 millim. 
Hab. Panama, Bugaba 800 to 1500 feet (Champion). 
This is a narrow insect, with elongate slender antenne, each joint of which, from the 
fourth to the tenth, is evidently shorter than its predecessor, the tenth being, however, 
considerably longer than broad. The head is narrow, and extremely shining, and bears 
rather numerous coarse punctures, which are absent from the middle. The thorax is 
elongate and slender, and the elytra are rather more closely and less coarsely punctate 
than in many of the allied species. The hind body has the penultimate segment black, 
but yellow behind; the segment preceding it is broadly black behind; the terminal 
segment is yellow, its hind margin and the terminal styles slightly infuscate. 
Fight examples have been found; the male differs from the female only by a mode- 
rately deep notch on the last ventral plate. The species presents no salient points of 
distinction from the Amazonian P. aberrans, but has many minor points of difference 
in colour, sculpture, and form. 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, Aprid 1885. 3 MM 
