Pyratula perpusilla (Edwards, 1913)

Kurina, Olavi, 2021, A contribution towards checklist of fungus gnats (Diptera, Diadocidiidae, Ditomyiidae, Bolitophilidae, Keroplatidae, Mycetophilidae) in Georgia, Transcaucasia, ZooKeys 1026, pp. 69-142 : 69

31. Pyratula perpusilla (Edwards, 1913)

Material.

16♂♂, SJ-4. Total: 16♂♂.

Distribution in Georgia.

Samtskhe-Javakheti.

General distribution.

Europe.

Remarks.

The P. perpusilla species-group includes at least seven closely related species in Europe, separable only by small details of male terminalia ( Chandler and Blasco-Zumeta 2001). The studied Georgian specimens have the ventroapical margin of the gonocoxite with setose lobe (= without asetose protuberance) that is shared by three species, viz. P. perpusilla , P. alpicola Chandler, 2001 and P. oracula Chandler, 1994. The aedeagal complex is considerably short (elongate in P. oracula ) and the aedeagal sheath is interrupted medially on the ventral side (with complete bridge in P. alpicola ). However, the Georgian specimens are slightly different from P. perpusilla as figured by Chandler and Blasco-Zumeta (2001: Figs 9 - 12 ) in having the distal dorsal corner of the aedeagal seath with a blunt protuberance that is otherwise typical to P. alpicola . The material was compared to that of P. alpicola and P. oracula from North Italy (cf. Kurina 2008b) and, pending a further molecular study of this species-group, is considered to be conspecific with P. perpusilla .

Figures

Figure 9. Habitus of Georgian fungus gnats of the families Bolitophilidae (A), Keroplatidae (B) and Mycetophilidae (C-I) A Bolitophila (Bolitophila) basicornis (Mayer, 1951) B Orfelia georgica Kurina & Juergenstein, 2013 C Acnemia nitidicollis (Meigen, 1818) D Monoclona rufilatera (Walker, 1837) E Azana (Azana) anomala (Staeger, 1840) F Phthinia hyrcanica Zaitzev, 1984 G Neoempheria striata (Meigen, 1818) H Neoempheria brevilineata Okada, 1939 I Mycomya (Mycomya) marginata (Meigen, 1818).

Figure 12. Habitus of Georgian fungus gnats of the family Mycetophilidae A Allodiopsis domestica (Meigen, 1830) B Rymosia affinis Winnertz, 1863 C Brevicornu griseicolle (Staeger, 1840) D Cordyla fissa Edwards, 1925 E Anatella longisetosa Dziedzicki, 1923 F Mycetophila magnicauda Strobl, 1895 G Epicypta scatophora (Perris, 1849) H Phronia tenuis Winnertz, 1863 I Sceptonia tenuis Edwards, 1925 J Zygomyia humeralis (Wiedemann, 1817) K Dynatosoma reciprocum (Walker, 1848).