Тип публикации: статья из журнала

Год издания: 2026

Идентификатор DOI: 10.3390/life16030398

Аннотация: <jats:p>The Siberian moth, Dendrolimus sibiricus Tschetverikov, is one of the most destructive conifer pests in Northern Asia, causing severe ecological and economic losses. In Russia, its range overlaps with that of the closely related pine-tree lappet Dendrolimus pini (L.), and this raises the potential for hybridization and compПоказать полностьюlicates accurate identification, particularly in the context of the potential westward expansion of D. sibiricus. Here, we present the first comprehensive morphometric analysis of male genitalia aimed at distinguishing these two major forest pests and their hybrids. The study was based on D. sibiricus and D. pini specimens collected during the last 130 years (1894–2024) across Europe and Asia, including their hybrids reared indoors by crossing D. pini females with D. sibiricus males in 1956 and preserved in the collection of the Zoological Institute of the Russian Academy of Sciences (St. Petersburg, Russia). Overall, 70 permanent genitalia slides were prepared (33 D. sibiricus, 33 D. pini, and 4 hybrids), and the following genital structures were measured: valva and harpe length, aedeagus width and length, and cornuti length. Dendrolimus sibiricus had significantly larger genital structures compared to D. pini: 74% longer harpe, 32% longer valva, and a 28% wider and longer aedeagus. In contrast, in D. sibiricus cornuti were 21% shorter than in D. pini. Hybrids displayed intermediate values for valva, harpe, and aedeagus lengths, and for these parameters, they significantly differed from both parental species. The following diagnostic indices were suggested to distinguish between the two species and their hybrids: Harpe Length/Valva Length Index (HL/VL) and Cornuti Length/Aedeagus Length Index (CL/AL). Decision-tree analysis identified HL/VL as the strongest predictor for separating the parental species and the Combined Genital Proportion Index (CGPI), which integrates harpe, valva, aedeagus, and cornuti lengths, as the strongest predictor for identifying hybrids. The morphometric criteria developed here have practical applications for monitoring programs and quarantine diagnostics, particularly in sympatric zones and regions at risk of D. sibiricus expansion.</jats:p>

Журнал: Life

Выпуск журнала: Т.16, №3

Номера страниц: 398

ISSN журнала: 20751729

• Ryazanova Maria A. (Institute of Ecology and Geography, Siberian Federal University, Krasnoyarsk 660041, Russia)
• Ageev Alexander A. (All-Russian Research Institute of Forestry and Forestry Mechanization (VNIILM), “Forest Pyrology Center”, Krasnoyarsk Branch, Krupskoy St. 42, Krasnoyarsk 660062, Russia)
• Sinev Sergey Yu. (Zoological Institute of Russian Academy of Sciences, 1 Universitetskaya Emb., St. Petersburg 199034, Russia)
• Matov Alexey Yu. (Zoological Institute of Russian Academy of Sciences, 1 Universitetskaya Emb., St. Petersburg 199034, Russia)
• Gomboc Stanislav (Independent Researcher, Gančani 110, 9231 Beltinci, Slovenia)
• Kovalenko Margarita G. (All-Russian Plant Quarantine Center (VNIIKR), Pogranichnaya Str. 32, Moscow 140150, Russia)
• Akulov Evgeny N. (Krasnoyarsk Branch of Centre for Agriproducts Quality Assurance, Zhelyabova Str. 6/6, Krasnoyarsk 660020, Russia)
• Demidko Denis A. (Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk 660036, Russia)
• Musolin Dmitrii L. (European and Mediterranean Plant Protection Organization, 21 Boulevard Richard Lenoir, 75011 Paris, France)
• Kirichenko Natalia I. (All-Russian Plant Quarantine Center (VNIIKR), Pogranichnaya Str. 32, Moscow 140150, Russia)

• Ядро РИНЦ (eLIBRARY.RU)