Dahlica triquetrella (Hübner, 1813)

Volkova, Julia S., Prozorov, Alexey M., Kryuchkov, Sergey N., Pavlov, Pavel O., Yakovlev, Roman V. & Anikin, Vasilii V., 2022, Fauna of Psychidae (Lepidoptera) of the Ulyanovsk Oblast (Middle Volga, Russia), Ecologica Montenegrina 58, pp. 109-121 : 112

4. Dahlica triquetrella (Hübner, 1813)

( Figs 10–11 , 33 )

Material: ♂, Surskoe District , environs of the village Lava, bilberry- ledum marsh, 54.479973N, 46.901823E, 11. V.2019, leg. Ju.S.Volkova, V. V. Zolotuhin ( Fig. 48 , site 2) ; ♂, Surskoe District , environs of the village Lava, bilberry-ledum marsh, 54.479973N, 46.901823E, 11. VI.2019, leg. Ju.S.Volkova, P.O.Pavlov, S.N.Kryuchkov, A.N.Matveev ( Fig. 48 , site 2) ; ♂, Staraya Maina District , village Kryukovka, 54.038038N, 48.001738E, 30.IV.2001, leg. D.Yu.Klevolgin ( Fig. 48 , site 9) ; ♂, Novospasskoe District , environs of the village Surulovka, steppe, 53.089087N, 47.742807E, 23. V.1996, leg. V. V. Zolotuhin ( Fig. 48 , site 13) ; ♂, Radishchevo District , village Solovchikha, 52.947403N, 47.788783E, 10–11. V.1993, leg. V. V. Zolotuhin ( Fig. 48 , site 14) .

Biology. Inhabits xerotherm and beech forests. Caterpillars are found on trunks of coniferous trees and less often on deciduous trees, as well as on rocks, dead wood, grapes, and meadow vegetation. Adults occur from March to April or from June to July, males are found rarer than females.

Distribution in Russia. Recorded from the European Northwestern and Central Regions, and under the question mark (?) from the Kaliningrad Oblast and Western Caucasian region ( Sinev & Lovtsova, 2019). In the Volga Region, it is known from the Ulyanovsk Oblast ( Anikin et al. 2017) and the Republic of Chuvashia ( Lastukhin 2010).

Figures

Figure 48. Collecting sites of Psychidae in the Ulyanovsk Oblast, for details visit https://bit.ly/3DIsqbL. 1–3. Surskoe District. 1. Village Surskoe. 2. Environs of the village Lava. 3. Bolshoi Kuvai. 4–5. Ulyanovsk District. 4. Environs of the village Arskoe. 5. Ulyanovsk city. 6. Staraya Maina District, environs of the village Verkhnyaya Matrosovka, biologic station of UlSPU. 7. Inza District, Yulovo. 8. Veshkayma District, village Beketovka, steppe. 9. Mayna District, village Kryukovka. 10–12. Nikolaevka District. 10. Lake Svetloe. 11. Environs of the village Praskovyino. 12. Kuroedovo. 13. Novospasskoe District, environs of the village Surulovka. 14–18. Radishchevo District. 14. Village Solovchikha. 15. Village Srednikovo. 16. Station Ryabina. 17. Vyazovka. 18. River Dalnyaya Chernava. One asterisk (*) is for the species new for the fauna of the Ulyanovsk Oblast, two (**) for the Middle Volga Region, and three (***) for Russia.

Figures 4–29. Male adults of Psychidae. 4–11. Dahlica spp. 4–5. D. charlottae. 4. MfNB. 5. MWM/ZSM. 6– 7. D. clathrella (MWM/ZSM). 8–9. D. lichenella. 8. MfNB. 9. MWM/ZSM 10–11. D. triquetrella. 10. MfNB. 11. MWM/ZSM. 12. Diplodoma laichartingella (MfNB). 13. Narycia duplicella (MfNB). 14–17. Taleporia spp. 14–15. T. politella. 14. MfNB. 15. ZISP. 16. T. tubulosa (MWM/ZSM). 17–18. Psyche spp. 17. P. betulina (MWM/ZSM). 18. P. casta (MfNB). 19. Epichnopterix plumella. 20. Rebelia nocturnella (MfNB). 21. Reisseronia staudingeri (ZISP). 22. Apterona helicoidella (MfNB). 23. Ptilocephala plumifera (MfNB). 24. Acanthopsyche atra (MfNB). 25. Canephora hirsuta (MfNB). 26–27. Megalophanes spp. 26. M. graslinella (MWM/ZSM). 27. M. stetinensis (MWM/ZSM). 28. Pachythelia vilosella (ZISP). 29. Sterrhopterix fusca (MfNB). One asterisk (*) is for the species new for the fauna of the Ulyanovsk Oblast, two (**) for the Middle Volga Region, and three (***) for Russia.

Figures 30–47. Cases of Psychidae. 30–33. Dahlica. 30. D. charlottae (MWM/ZSM). 31. D. clathrella (MWM/ZSM). 32. D. lichenella (MWM/ZSM). 33. D. triquetrella (MWM/ZSM). 34. Diplodoma laichartingella (MfNB). 35. Narycia duplicella (MfNB). 36–37. Taleporia. 36. T. politella (ZISP). 37. T. tubulosa (UlSPU). 38–39. Psyche. 38. P. betulina (MWM/ZSM). 39. P. casta (MfNB). 40. Epichnopterix plumella (MfNB). 41. Acanthopsyche atra (MfNB). 42. Apterona helicoidella (UlSPU). 43. Canephora hirsuta (MfNB). 44. Megalophanes graslinella (UlSPU). 45. Megalophanes stetinensis (UlSPU). 46. Ptilocephala plumifera (MfNB). 47. Sterrhopterix fusca (MfNB). One asterisk (*) is for the species new for the fauna of the Ulyanovsk Oblast and two (**) for the Middle Volga Region.