Melitaea latonigena (Eversmann, 1847) (Table 4, Fig. 2g –i). SEM material examined. 5 eggs collected in nature; Tara riv. valley, Altay Republic, Russia; 2150 m a.s.l.; 18–19 July 2021; 49º46’ N, 87º25’ E; 5 eggs extracted from dried female; West Sayan Mts, vicinities of Mondy, Buryat Republic, Russia; 1500 m a.s.l.; 29 June 2023; 51º41’ N, 100º58’ E; EDMSU. The eggs are oval in shape and large. The eggs height varies from 932.18 to 975.70 μm. The width ranges from 809.99 to 831.56 μm. The average height-to-width ratio is 1.15. The micropile area includes from 10 to 12 primary cells. The length of the primary cells varies from 12.12 to 42.55 μm, the width ranges from 6.36 to 20.07 μm. The average diameter of the micropile is 9.61 μm. Lateral ribs in the number of 18.

Published as part of Kolesnichenko, K. A., Kovalenko, M. G. & Kotlobay, A. A., 2025, New data on the biology of Melitaea interrupta Kolenati, 1846 fritillary (Lepidoptera: Nymphalidae) with an analysis of its preimaginal stages features diagnostic value, pp. 326-342 in Russian Entomological Journal 34 (3) on page 337, DOI: 10.15298/rusentj.34.3.04, http://zenodo.org/record/20161951