Ischnopoda colorata PA–NIK 2006, comb. n.
Creators: name: PA – NIK, GRZEGORZ
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Ischnopoda
Ischnopoda colorata

description: Ischnopodacolorata (Fairmaire, 1859), comb. n. (Figs. 31–33)
Calodera colorata Fairmaire, 1859: 184.
Drusilla exarata Mannerheim, 1830: 85, nomen dubium.
Tachyusa exarata: Erichson, 1839: 72.
Tachyusa (Ischnopoda) exarata: Ganglbauer, 1895: 245.
Ischnopoda (Calischnopoda) exarata: Reitter, 1909: 73.
Tachyusa (Calischnopoda) exarata: Bernhauer & Scheerpeltz, 1926: 584.
Tachyusa (Calischnopoda) colorata: Bernhauer & Scheerpeltz, 1926: 584 (as synonym of T. exarata).
Tachyusa (Calischnopoda) exarata: Lohse, 1974: 70.
Examined material. Austria: Baden, Linke, 1 ex (MTD); Graz, H. Priesner, 1 ex (BMNH); 2 exx (MSNM); 1 ex (NMW); Linz, 1 ex (ZMHB); H. Priesner, 1 ex (NMW); Lobau­Wien, Donau­Auen, 3 exx (NMW); Mannersdorf, 1 ex (FMNH); Spillern, Luze, 5 exx (NMW); Stadlan near Wien, 2 exx (NMW); Stockerau, Bernhauer, 4 exx (CAS); 2 exx (DEI); 7 exx (FMNH); 1 ex (IRSNB); 11 exx (MNHN); 2 exx (ZMHB); 10 exx (NMW); 2 ex (NMPC); 1 ex (NHMB); 6 exx (NMW); Vorarlberg, Bodense, 1 ex (NMW); Wien, Breit, 1 ex (CAS); 1 ex (IRSNB); Milie, 1 ex (MHNG); 1 ex (MNHN); 1 ex (NMW); M. Curti, 1 ex (MTD); “ Austria ” (localities not specified), Reitter, 1 ex (MNHN); 1 ex (NMW); 2 exx (NMPC); 1 ex (SMNS); Linke, 4 exx (MTD). Bosnia and Herzegovina: Hilf Dervent, Apfelbeck, 1 ex (FMNH); Trnovo­Sejmen, Marica, 21.III.1909, Rambousek, 1 ex (NMPC). Czech Republic: "Brandeis" [Brandys], Skalitzky, 1 ex (NMW); Trencsin, 1 ex (NMW). France: Carcassonne, V.1918, 1 ex (MNHN). Germany: München, 6.VI.1910, Ihssen, 6 exx (ZMHB); Wachau, 4 exx (FMNH). Italy: Fiume Po, Valenza, 30.V.1960, Ross, 1 ex (NMW); Lombardia, Ponte della Decca, 25.IV.1964, Ravizza, 1 ex (NMW); Torino, 30.VII.1911, T. Sangone, 3 ex (MNHN). Russia: Kislovodsk, V.1892, Roubal, 2 exx (CAS); 1 ex (ZMHB). Slovakia: Samorin, Laco, 1 ex (NMPC). Ukraine: Dobrowlany, 26.VII.1931, 1 ex (FMNH); Zaleszczyki, 20.VIII.1937, 1 ex (FMNH); 1 ex (MIZ).
Redescription. Body. Length 4.0–4.5 mm, convex, parallel­sided, dull; body colour yellowish red; head brownish red, pronotum and elytra yellowish red, elytra usually infuscate, abdomen black with tergites 3–5 yellowish red, legs reddish yellow, antennae brown with three basal antennomeres red.
Head circular in outline, flattened dorsally, narrowly and shallowly impressed medially in male and without impression in female; eyes large, moderately protruding from lateral contours of head, length of each seen from above subequal to that of
postocular region; surface of head with dense isodiametric mesh microsculpture; puncturation fine and very dense, inconspicuous in microsculpture. Antennae long, slightly increased in width apically, antennomere 3 longer than 2, antennomeres 4–7 longer than wide, antennomeres 8–10 quadrate, antennomere 11 nearly conical.
Pronotum subquadrate, lateral sides narrowed in straight line to obtuse hind angles; before base with broad and shallow transverse impression, broadly and shallowly impressed medially, more distinct in male than in female; surface with isodiametric mesh microsculpture; puncturation fine, very dense and asperate; pubescence at midline directed entirely posteriorly.
Elytra subquadrate, at suture shorter than pronotum at midline; surface without microsculpture; puncturation fine, dense and asperate.
Abdomen parallel­sided, bases of tergites 3–5 each with deep transverse impression, impressions coarsely and densely punctuate, tergal puncturation fine and dense, tergite 8 with isodiametric mesh microsculpture.
Male. Aedeagus as in Figs. 31–32.
Female. Spermatheca as in Fig. 33.
Taxonomic notes. Drusilla exarata was originally described by Mannerheim (1830) from “Willnäs” in Finland. In 1839, Erichson transferred D. exarata to the genus Tachyusa and provided the first redescription of the species based on the specimens from Austria. Since then, some subsequent authors considered Erichson to be the author of T. exarata (e.g. Ganglbauer 1895, Reitter 1909, Lohse 1974). Moreover, since the original description this species has not been recorded from Scandinavia. The currently known area of distribution of Ischnopoda exarata is restricted to the central and south Europe. The type of Drusilla exarata was not located in the Mannerheim collections housed in the Zoological Museum, University of Helsinki, and Zoological Institute, St. Petersburg, so that it seems safe to assume that type is lost. However, as mentioned above, the species (except original description) has never been found and recorded from Scandinavia. This situation may be caused by a mistake in the type locality of the Drusilla exarata described by Mannerheim or, more likely, by misinterpretation of D. exarata by subsequent authors. In the second case, the name Drusilla exarata should be reinterpreted and central European species would become Calodera colorata Fairmaire, the species treated so far as junior synonym of D. exarata. The original description of Drusilla exarata does not allow without doubt characterizing this species with confidence. Unfortunately, the type of C. colorata was also not located in the collections of Fairmaire housed in the Institut Royal des Sciences Naturelles de Belgique in Bruxelles. However, I. colorata is a name currently used for distinct European species. The species here treated as I. colorata is in agreement with the original description of Fairmaire (1859). Therefore, for the sake of nomenclatural stability and in order to avoid taxonomic confusion a neotype should be designated for C. colorata to fix the identity of the species. According to the ICZN (Art. 75.3.6.) the neotype should came from as near the original type locality as practicable. Calodera colorata was originally described by Fairmaire (1859) from Bordeaux in France. In the study material only one specimen of I. colorata came from France: “ France: Carcassonne, V.1918, ♀ (MNHN) ”. Unfortunatelly, this locality is far away from type locality, and moreover, the specimen is in bad condition does not allow for designation of neotype. From this reason the neotype is not designated in the present paper.
Remarks. Externally, Ischnopoda colorata is similar to I. leucopus, but it can be easy distinguished by the pronotal pubescence at midline directed entirely posteriorly, the yellowish red body colouration, the elytral length at suture shorter than pronotal length at midline and by the shape of genitalia.
Distribution. Based on the revised records, the distribution of this apparently rare species, ranges from France and Italy in the west to Kislovodsk in the Caucasus region in the east. The most northern known occurrence of this species is in München, Germany.
description: Published as part of PA – NIK, GRZEGORZ, 2006, Taxonomy and phylogeny of the World species of the genus Ischnopoda Stephens, 1837 (Coleoptera, Staphylinidae: Aleocharinae), pp. 1-96 in Zootaxa 1179 (1) on pages 40-42, DOI: 10.11646/zootaxa.1179.1.1, http://zenodo.org/record/10087166