Leptusa (Dysleptusa) pusio ( Casey, 1906 )

Gusarov, Vladimir I., 2003, Revision of some types of North American aleocharines (Coleoptera: Staphylinidae: Aleocharinae), with synonymic notes, Zootaxa 353 (1), pp. 1-134: 115-116

publication ID

http://doi.org/ 10.11646/zootaxa.353.1.1

publication LSID

lsid:zoobank.org:pub:104E9C0B-B207-41E6-816C-E91FC1C7DBA0

DOI

http://doi.org/10.5281/zenodo.5103086

persistent identifier

http://treatment.plazi.org/id/03F387B2-FFF2-533F-CD24-503BFC5EA3E9

treatment provided by

Felipe

scientific name

Leptusa (Dysleptusa) pusio ( Casey, 1906 )
status

 

Leptusa (Dysleptusa) pusio ( Casey, 1906)  

(Fig. 578 in Pace 1989; Figs. 157–160 View FIGURES 157–160 , this paper)

Ulitusa pusio Casey, 1906: 348   .

Leptusa (Eucryptusa) pusio: Bernhauer & Scheerpeltz, 1926: 556   (as valid species).

Leptusa (Dysleptusa) pusio: Pace, 1989: 107   (as valid species).

Type material. Lectotype of Leptusa pusio   (here designated): ♂, “Cin.[cinnati] O.[hio] 5.19.6 [19.v.1906]”, “ pusio Csy.   ”, “TYPE USNM 39595” (red label), “CASEY bequest 1925”, “ vidit R. Pace 1981” ( NMNH)   . Paralectotype: “Cin.[cinnati] O.[hio] 4.18.6 [18.iv.1906]”, “ pusio Csy.   ”, “ pusio   ­ 2 PARATYPE USNM 39595” (red label), “CASEY bequest 1925”, “ vidit R. Pace 1981” ( NMNH)   .

Diagnosis. See Pace (1989).

Discussion. In his list of examined type material Pace (1989) listed a single male specimen as the holotype of U. pusio   . However, in the Casey collection U. pusio   is represented by two specimens from the type locality. One specimen (the lectotype) was dissected by Pace and illustrated in Figs. 579–582 ( Pace 1989). The second specimen (the paralectotype) was dissected by me. My examination of the genitalia preparations of both specimens demonstrated that the illustrations by Pace (1989; Figs. 579, 582) are incorrect. The distal of the two projections on the parameral side of the median lobe illustrated by Pace in Figs. 579 and 582 does not exist. Pace mistook a small piece of dirt encased in the Canada balsam for a projection of the aedeagus. The correct drawing of the median lobe is given in Figs. 157–158 View FIGURES 157–160 . The basal of the two projections illustrated by Pace (cf. Fig. 579 in Pace 1989 and Fig. 157 View FIGURES 157–160 in this paper) does exist. This projection is shared by two other Nearctic species of the subgenus Dysleptusa Pace, 1982   (Le. carolinensis Pace, 1989 and Le. smetanaiella Pace, 1989) (see Figs. 1686, 1691) but not by the Palaearctic species included by Pace in Dysleptusa   . The type species of Dysleptusa   is Leptusa fuliginosa (Aubé, 1850)   , a Palaearctic species without a projection. Therefore, the three Nearctic species placed by Pace (1989) in this subgenus may belong to a different lineage of Leptusa   .

Distribution. Leptusa pusio   is known from Ohio.

NMNH

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Leptusa

Loc

Leptusa (Dysleptusa) pusio ( Casey, 1906 )

Gusarov, Vladimir I. 2003
2003
Loc

Leptusa (Dysleptusa) pusio: Pace, 1989: 107

Pace, R. 1989: 107
1989
Loc

Leptusa (Eucryptusa) pusio:

Bernhauer, M. & Scheerpeltz, O. 1926: 556
1926
Loc

Ulitusa pusio Casey, 1906: 348

Casey, T. L. 1906: 348
1906