Atheta (Tetropla) nigritula ( Gravenhorst, 1802 )

Gusarov, Vladimir I., 2003, Revision of some types of North American aleocharines (Coleoptera: Staphylinidae: Aleocharinae), with synonymic notes, Zootaxa 353 (1), pp. 1-134: 60-61

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.5103054

persistent identifier

http://treatment.plazi.org/id/03F387B2-FFBB-5370-CD24-51AEFD71A641

treatment provided by

Felipe

scientific name

Atheta (Tetropla) nigritula ( Gravenhorst, 1802 )
status

 

Atheta (Tetropla) nigritula ( Gravenhorst, 1802)  

( Fig. 117 View FIGURES 116–119 in Strand & Vik, 1964; Fig. 7 View FIGURES 5–9 , p. 154 View FIGURES 147–154 in Benick & Lohse 1974)

Aleochara nigritula Gravenhorst, 1802: 85   .

Homalota socialis Erichson, 1839   , var. c: 103 (as valid name for Aleochara nigritula Gravenhorst, 1802   ).

Homalota (Tetropla) nigritula: Mulsant & Rey, 1874a: 529   (as valid species).

Atheta (s. str.) nigritula: Bernhauer & Scheerpeltz, 1926: 646   (as valid species).

Atheta (s. str.) nigritula: Strand & Vik, 1964: 331   (as valid species).

Atheta (Tetropla) nigritula: Benick & Lohse, 1974: 154   (as valid species).

(Other references are omitted)

Type material. Lectotype of Aleochara nigritula   (here designated): ♀ (with the head and pronotum missing), “var. c. A. nigritula Gr.   ”, “ nigritula Gr.   ” ( ZMHB).  

Additional material. UKRAINE: Crimea: Simferopol’ distr.: 10 specimens, Krasnoles’ye , 400 m, in rotting wood and on mushrooms, 27.v.1990 (V.I.Gusarov) ( SPSU)   ; Ivano­Frankovsk Reg.: 7 specimens, Nadvornaya, on polypore mushrooms, 6.viii.1978 (S.Mosyakin) ( SPSU)   .

Diagnosis. See Benick & Lohse (1974).

Discussion. The types of Ale. nigritula   were examined to clarify the status of At. frosti   and At. nigritula   . The historic collection at ZMHB which contains the Gravenhorst types has several specimens arranged as Aleochara nigritula   in the following order: the label at the bottom of the drawer “var. c. A. nigritula Gr.   ” is followed by 11 specimens: 1) ♀ (with the head and pronotum missing), labeled “ nigritula Gr.   ”; 2) ♀, without labels; 3) ♀, without labels; 4) ♂, without labels; 5) ♀, without labels; 6) a specimen labeled “ fungicola Kraatz”; 7) a specimen without labels; 8) a specimen labeled “var. d”; 9) a specimen without labels; 10) a specimen labeled “Sard. Géné”; 11) a specimen labeled “Ural Er.”. These 11 specimens complete the row. The next row starts with a label at the bottom of the drawer “var.?” which is followed by 7 specimens: 12–15) four unlabeled specimens, 16) a specimen labeled “Aust. …[illegible]”; 17–18) two specimens mounted on the same card labeled “Pallau H. socialis var. nigra Gve.   ”. Apparently, the specimens listed above had been arranged by Erichson, who described Homalota socialis Erichson, 1839   and listed Aleochara nigritula Gravenhorst   as “Var. c” of H. socialis   . Therefore only the specimens (Nos. 1–7) which follow the label “var. c” qualify as potential syntypes of Aleochara nigritula   . My examination of these seven specimens demonstrated that only specimen No. 1 belongs to At. nigritula   in the commonly used sense (e. g., Strand & Vik 1964; Benick & Lohse 1974); specimens No. 2 and No. 5 belong to At. pallidicornis ( Thomson, 1856)   ; specimen No. 3 belongs to Dalotia coriaria ( Kraatz, 1856)   ; specimen No. 4 belongs to At. gagatina (Baudi, 1848)   ; specimen No. 6 is not conspecific with At. nigritula   and has the pronotal pubescence of type I; specimen No. 7 is not conspecific with At. nigritula   and has the pronotal pubescence of type II. Specimen No. 1 was selected as the lectotype of Aleochara nigritula   . The spermatheca of that specimen matches the illustrations by Strand and Vik (1964: Fig. 117 View FIGURES 116–119 ) and Benick and Lohse (1974, p. 154: Fig. 7 View FIGURES 5–9 ).

Atheta nigritula ( Gravenhorst, 1802)   is the types species of the subgenus Tetropla Mulsant & Rey, 1874a   (by subsequent designation, fixed by Blackwelder (1952)).

Distribution. Atheta nigritula   is a common European species associated with fungi. It has been reported from North America ( Bernhauer 1907; Bernhauer & Scheerpeltz 1926) but, to the best of my knowledge, does not occur there. The examined North American specimens formerly identified as At. nigritula   turned out to be At. frosti Bernhauer, 1909   , a closely related but separate species.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Atheta

Loc

Atheta (Tetropla) nigritula ( Gravenhorst, 1802 )

Gusarov, Vladimir I. 2003
2003
Loc

Atheta (Tetropla) nigritula:

Benick, G. & Lohse, G. A. 1974: 154
1974
Loc

Atheta (s. str.) nigritula:

Strand, A. & Vik, A. 1964: 331
1964
Loc

Atheta (s. str.) nigritula:

Bernhauer, M. & Scheerpeltz, O. 1926: 646
1926
Loc

Homalota (Tetropla) nigritula:

Mulsant, M. E. & Rey, C. 1874: 529
1874
Loc

Aleochara nigritula

Gravenhorst, J. L. C. 1802: 85
1802