Mycetophila evanida Lastovka , 1972

Juergenstein, Siiri, Kurina, Olavi & Poldmaa, Kadri, 2015, The Mycetophilaruficollis Meigen (Diptera, Mycetophilidae) group in Europe: elucidating species delimitation with COI and ITS 2 sequence data, ZooKeys 508, pp. 15-51 : 23-25

Taxon classification Animalia Diptera Mycetophilidae

Mycetophila evanida Lastovka, 1972 Figs 8, 21, 22, 39, 40

Material.

ESTONIA. 1♂, Jõgeva county, Pataste, 58°34'52,2"N, 26°46'42,3"E, 5. x– 19.x.2009, Malaise trap, J. Elts leg. (IZBE0200069, in alcohol with terminalia in glycerine, abdomen used for DNA sequence: SJ270); 1♂, Tartu county, Melliste, 58°19'43,8"N, 26°56'25,1"E, 4. x– 18.x.2008, Malaise trap, O. Kurina leg. (IZBE0200070, in alcohol with terminalia in glycerine, abdomen used for DNA sequence: SJ230). ITALY. 1♂, Südtirol, N. Park Stilfser Joch, Unt. Tartscher Tal (S von Trafoi), 46°32'33,9"N, 10°30'17,2"E, 1630m, 27.vi-4.vii. 2005, Malaise trap, C. Lange and J. Ziegler leg. (IZBE0200071, in alcohol with terminalia in glycerine, abdomen used for DNA sequence: SJ53).

Male terminalia.

Posterior margin of gonocoxite ventromedially with clear convexity, and with abrupt and blunt projections laterally. Posterior impression rather wide. Anterior impression with anteriorly evenly divergent narrow arms. Ventral branch of gonostylus with semicircular posterior process which bears minute warts and few setae; spine 1 slender, evenly tapering and sharply pointed; spine 2 shorter, thicker and rather blunt; spines 3 and 4 much smaller than spine 1, sharply pointed and close to each other. Dorsal branch of gonostylus steeply tapering; lateral margin with shallow concavity; distal posterior process about half as high as proximal posterior process, both separated by shallow concavity. Distal posterior process with few setae; proximal posterior process bare with 2-3 setae deviating from other setosity on its base. Posterior margin proximally from medial bristle with 6 gradually diminishing bristles; internal surface with one somewhat stronger seta next to the medial bristle. Basal angle right-angled, basal margin with setae. Ejaculatory apodeme with subquadrate base and very wide rim. Aedeagus widened apically, apical margin slightly convex. Aedeagal guides with wide lateral impressions; apically narrow and rounded, not extending upper margin of aedeagus. Aedeagal apodemes laterally angular.

Intraspecific variation.

In some cases the base of the ejaculatory apodeme resembles Mycetophila idonea , because of having its basal margin somewhat concave. The holotype has an additional small spine on the ventral branch of the gonostylus close to spines 3 and 4 (cf. Laštovka (1972: fig. 12). In studied material this spine was not observed.

Hosts and distribution.

Mycetophila evanida has been reared from species of Russula , Lactarius , and Tubaria ( Yakovlev 1994). The species is widely distributed in Europe extending also to the Eastern Palearctic ( Laštovka 1972, Chandler 2013, Jakovlev 2014). The material from Estonia represents a new country record.