Meotica exillima, Sharp, 1915

Assing, Volker & Vogel, Jürgen, 2019, The mother of synonyms: on the Meotica species of the Palaearctic Region (Coleoptera, Staphylinidae, Aleocharinae, Oxypodini), Linzer biologische Beiträge 51 (2), pp. 731-772: 752

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Meotica exillima


Meotica exillima  SHARP, 1915 ( Figs 18-28View Figs 18-28)

Meotica exillima  SHARP, 1915: 215; lectotype designation by MUONA (1991).

T y p e m a t e r i a l e x a m i n e d: Lectotype ♂: " Syntype / H. exillima  / New Forest,

ix.1914, M. A. Sharp / D. Sharp Coll. B.M. 1932-166 / Lectotype " ( BMNH).

A d d i t i o n a l m a t e r i a l e x a m i n e d: SPAIN: 1♀, Pontevedra , Montes del Testeiro, 800-900 m, leg. Franz (cVog)  . FRANCE: 1♀, Lozère , 2 km S Villefort, 8.IV.1980, leg. Löbl ( MHNG)  . GERMANY: N i e d e r s a c h s e n: 1♀, N Hannover, Bissendorfer Moor , 22.X.1988, leg. Assing (cAss)  ; 1♀, NW Hannover, Helstorfer Reiterheide , heathland, soil extraction, XII.1981, leg. Melber (cAss)  ; 1♂, Lüneburger Heider , Schneverdingen env., heathland, soil extraction, XII.1984, leg. Melber (cAss)  ; 1♂, Lüneburger Heider , Schneverdingen env., Tütsberg, sparsely vegetated heathland, pitfall trap, V.1994, leg. Melber (cAss)  ; 1♂, Gifhorn env., NSG "Heiliger Hain", heathland, soil extraction, VII.1985, leg. Assing et al. (cAss)  ; 2♀♀, same data, but VIII.1985 (cAss)  ; 7♂♂, 4♀♀, same data, but IX.1985 (cAss)  ; 2♂♂, 1♀, same data, but XII.1985 (cAss)  ; 1♂, same data, but I.1986 (cAss)  ; 1♂, 2♀♀, same data, but II.1986 (cAss)  ; 1♂, 2♀♀, same data, but III.1986 (cAss)  ; 4♂♂, 8♀♀ [5 with mature eggs in ovaries], same data, but IV.1986 (cAss)  ; 2♂♂, 1♀, same data, but V.1986 (cAss)  ; 4♂♂, 3♀♀, same data, but VI.1986 (cAss)  ; 1♂, same data, but VII.1986 (cAss)  ; 1♂, same data, but X.1986 (cAss)  ; 1♂, 2♀♀, same data, but XII.1986 (cAss)  ; 1♂, same data, but pitfall trap, V:1985 (cAss)  ; 1♂, Gifhorn env., Wesendorf , Talpa nest, 14.IV.1984, leg. Assing (cAss). N o r d r h e i n - W e s t f a l e n: 1♂, 1♀, Mönchengladbach, Gerkerath, 25.III.1989, leg. Wunderle (cVog)  ; 1♂, 1♀, Wesel , NSG Schwarzes Wasser, 30 XII.1974, leg. Hozman (cVog)  .

C o m m e n t: The original description is based on numerous syntypes from "Anglia mer." collected in " Sphagnum in the spring and autumn" ( SHARP 1915). MUONA (1991) designated a lectotype.

D i a g n o s i s: Wing-polymorphic species.

♂: sternite VIII ( Fig. 18View Figs 18-28) strongly transverse, posterior margin obtusely produced in the middle; median lobe of aedeagus approximately 0.23-0.24 mm long and shaped as in Figs 19-22View Figs 18-28; apical lobe of paramere blackish.

♀: posterior margin of sternite VIII convex, in the middle truncate or weakly concave ( Fig. 23View Figs 18-28); spermatheca comma-shaped, very stout and short ( Figs 24-28View Figs 18-28).

Although very similar in external characters and in the morphology of the aedeagus to M. exilis  , M. exillima  is reliably distinguished by the shape of the male sternite VIII and by the much shorter and stouter spermatheca.

C o n f i r m e d d i s t r i b u t i o n: South England, Spain, France, Germany. Note that, aside from the type material, MUONA (1991) had seen only a single specimen from North Germany.

N a t u r a l h i s t o r y: The type material from South England was collected from Sphagnum, where it "though local is by no means rare" ( SHARP 1915). The material listed above was found in sandy Calluna heathlands, partly also in very sparsely vegetated plots, primarily by extracting soil. One specimen was collected in a bog and one was extracted from a mole nest. The ovaries of five dissected females collected in April contained mature eggs.



Museum d'Histoire Naturelle














Meotica exillima

Assing, Volker & Vogel, Jürgen 2019

Meotica exillima

SHARP D 1915: 215