Linnean Species of Staphylinus. 53 
Sp. 21. Staph. chrysomelinus is a species of Tachyporus, closely 
allied to Staph. obtusus, Linn., respecting the specific identity of 
which there appears to be no diversity of opinion, although the 
label in the Linnzan Cabinet is in the handwriting of the younger 
Linneus. The Oxyporus melanocephalus of Fabricius, and Staph. 
merdarius of Marsham, are to be considered as varieties of it. 
Sp. 22. Staph. flavipes appears to have been lost sight of, or 
doubtfully treated by, subsequent Entomologists. Fabricius 
indeed gave this name and reference to a species which is identical 
with the Omalium planum of Gravenhorst, according to Dr. Erichson, 
who has carefully examined the Fabrician Collections (who 
observes on this synonym, “In Fabricius Sammlung befindet sich 
dieser Kafer als Staph. flavipes: ob der Linneische wirklich 
derselbe sei, geht aus Linne’s Beschreibung nicht hervor, wenn 
dieselbe auch nichts enthalt was dem entgegen ware,” Col. March, 
p- 637); whilst Mr. Kirby in his manuscripts gave it doubtingly 
as a species of Falagria of Leach, (which reference Mr. Stephens 
—Catal. p. 260—and Mr. Hope—Col. Man. 3, 20—have also 
adopted). The Linnzean specimen (ticketed by the younger 
Linnzus) is however a species of Yachyporus, identical with the 
T. hypnorum, Fabr. (of which 7. marginatus and nitidulus are 
evidently varieties). It is a line and a half long. The lateral 
and posterior margins of the thorax are pale, the pale colour 
being dilated at the posterior angles. The Linnzan description 
is silent as to these pale margins of the thorax. 
Sp. 23. Staph. fuscipes is another species which, from the in- 
sufficient description given of it by Linnzus, has been hitherto 
overlooked or doubtfully treated by subsequent authors. By 
Fabricius a species of Aleochara was described under that name, 
reference being also made by that author (Syst. Eleuth. 2, p. 598) 
to Panzer’s F. I. G. 27, fig. 12. The latter figure however repre- 
sents a species of Tachyporus (T. fimetarius, Grav.). Hence the 
Fabrician species was also rendered doubtful; but Dr. Erichson 
has satisfactorily proved that the latter is that species of Aleochara 
known under that name. The Linnzan insect is however quite 
distinct from either of the above, upon which Erichson observes, 
** Staph. fuscipes, Linn., species dubia quidem est, at certe distincta 
anostra. Thorace, capite et maxillis insignibus forte ad Oxytelum 
vel potius Platystethum quendam spectans.” The Linnzean specimen, 
however, belongs to the genus Gyrohypnus, Kirby, (Xantholinus, 
Dahl.); and although Linnzeus describes it as ‘ pediculo fere 
