448 STAPHYLINIDA. 
in a very fragmentary and decayed condition, but appear to possess the same extra- 
ordinary sexual characters that I have described in P. insolitus. It is very remarkable 
that these should have escaped Erichson’s notice, as he leaves us to infer, by stating 
that the tarsi are simple in both sexes, that he had really distinguished the sexes. The 
species is, I think, however, really the one Erichson intended, and was so determined 
in the Sallé collection, the original type being in Chevrolat’s collection. 
The four examples found in Guatemala are all females, but appear truly conspecific 
with those from Mexico. 
21. Pederomimus cribricollis. 
Philonthus cribricollis, Er. Gen. et Spec. p. 487°. 
Hab. Mexico (coll. Chevrolat)!.—Soutn AMERICA, Colombia !. 
I can give no information about this species, which would appear to be extremely 
closely allied to P. angusticollis; but I have considerable doubt whether it ought to 
be included in our list, as it is extremely questionable to me whether any species of 
Pederomimus, especially a rare one, occurs both in Colombia and Mexico.* 
22. Pederomimus contractus. 
Rufus ; capite superne nigro-snescente ; antennis pedibusque testaceis, illis medio subobscuratis, his femoribus 
extrorsum late fuscis; elytris (basi excepta), abdominis postico pectoreque nigricantibus; abdomine ante 
apicem flavo-cingulato; prothorace seriebus dorsalibus grosse 6-punctatis; elytris profunde fortius 
denseque punctatis. 
Long. 7 millim. 
Hab. Guatemaua, San Gerdénimo, Cubilguitz, Cahabon, Chacoj (Champion); Nica- 
RAGUA (coll. Sallé). 
Antenne rather stout, yellow, with the four or five middle joints brownish, the 
penultimate joint not quite so long as broad. Head rather narrow, extremely shining, 
brassy black, its punctures very large. Thoracic punctures excessively large, the dorsal 
series closely approximate in front, so as to give rise frequently to the appearance of 
the space separating them being carinate, each puncture separated from the next only 
by a very small space. Elytra very densely and coarsely punctate, but the hind margin 
shining; a rather broad band at the base red. The apex of the hind body black, the 
black colour being divided just before the extremity by a broad yellow space. Legs 
pale yellow, each of the femora broadly dilute black outwardly. 
Mr. Champion met with a large series of examples of this species, exhibiting but 
little variation ; only one or two examples were met with in each of the other localities. 
The example from Nicaragua has the antenne darker in the middle than in the others, 
The male can scarcely be distinguished from the female by external characters. 
* The species figured under the name of P. cribricollis (Tab. XI. fig. 24) should be referred to P. cribratus. 
