Camptomyia drymophila Mamaev et Zaitzev, 1998

Sotnikov, I. V., Vinogradov, D. D., Mazakina, V. V., Tsurikov, S. M. & Krivosheina, M. G., 2024, New report of a rare species of the gall midge from the genus Camptomyia Kieffer, 1894 (Diptera: Cecidomyiidae), Russian Entomological Journal 33 (3), pp. 397-400 : 398-400

Camptomyia drymophila Mamaev et Zaitzev, 1998

Fig. 2 .

MATERIAL. Russia: 2 females, Moscow, village Pervomayskoe, 330 m from Zhiletovka river, spruce forest with hazel near Malinky biological station 55.457554° N, 037.180332° E, 15– 25.07.2022 (D. Vinogradov, A. Zuev, A. Tiunov); holotype, male, Russia, Far East, “Kedrovaya Pad” Reserve, netting, 17.VIII 1962 (O. Kovalev), ZMMU P-Di 0057 ( Fig. 2 ) .

MORPHOLOGY. The species was described from the 3 males caught in “Kedrovaya Pad” Reserve. The description was based on the following characters. Body yellow with brownish notum, length of wing 3.0 mm. Eye bridge 12-14 ommatidia-broad; antennae with 2+19 segments, basal enlargement of middle antennal segments subcylindric, 1.5 times as long as broad; stem almost 1.8 times as long as basal enlargement, base of stem covered with microtrichiae, horse-shoe-shaped sockets in one irregular row and in cluster on the frontal surface of segment; ring-shape sensoriae distinct; ultimate segment variable: cone-shaped or with long finger-shaped appendage; palpi 4-segmented, with ratio 1.0:1.5:2.4:2.4; wing venation of ordinary type, leg 2.1 times as long as wing, hind femur 1.2 times as long as tibia, tarsal claw bifid, empodium thick, protruded dorsally over tarsal claw. Coxites of male genitalia long, triangular with very deep incision separating tegmen; styles long tapering in distal half; with black claw; 9th tergite with shallow triangular incision; parameres short, slightly curved, genital rod weakly sclerotized, T-shaped basally, with transparent cup distally; roots of apodeme short, thick, weakly sclerotized [ Mamaev, Zaitzev, 1998]. The following diagnosis of the new species was given: new species is unique: stem of flagellar segments long, thin, covered with microtrichiae basally, style with entire (not pectinate) black claw, genital rod and roots of apodeme very weakly sclerotized. Similar species, C. corticalis (Loew, 1851) in contrast to new species with yellow notum and bare stems [ Mamaev, Zaitzev, 1998]. However, the authors did not work out some key to Camptomyia species although they described 10 new species in this article. A key to 16 Camptomyia species distributed in Sweden was created by M. & C. Jaschhof [2013]. According to this key C. drymophila can be determined by the following characters: empodia rudimentary, parameres not fused, gonocoxites twice as broad as long, gonostylus elongate and slender, parameres not interlinked basally, apices touching, apices of parameres hidden behind copulatory organ, directed posteriad, pointed; gonocoxal emargination surrounded by setulae with conspicuously large, raised sockets [ Jaschhof, Jaschhof, 2013]. The latter authors offer the following diagnosis: C. drymophila differs from the other species of the corticalis group by that the gonocoxal emargination surrounded by setulae with conspicuously large, raised sockets; paramerers barely reach to the apex of the copulatory organ; the paramere processes are sclerotized, pointed apically and slightly curved ventrolaterad. Moreover all authors [ Mamaev, Zaitzev, 1998; Jaschhof, Jaschhof, 2013] recognize C. corticalis as the closest species to C. drymophila .

PHENOLOGY. Imagoes were active in August in the Far East of Russia [ Mamaev, Zaitzev, 1998] and in June-July in Sweden [ Jaschhof, Jaschhof, 2013]. We collected our material in July in Moscow. The species was captured in spruce forest only.

BIOLOGY. Imagoes reared from litter and deeper soil and were caught using emergent trap. They inhabited soil together with Porricondyla sp. ( Cecidomyiidae ), Scatopsciara atomaria (Zetterstedt, 1851) and Corynoptera inexpectata Tuomikoski, 1960 ( Sciaridae ), Bicellaria intermedia Lundbeck, 1910 ( Hybotidae ), Rhagio lineola Fabricius, 1794 ( Rhagionidae ), Terrilimosina schmidtzi (Duda, 1918) ( Sphaeroceridae ), Megaselia sp. ( Phoridae ).

DISTRIBUTION. The species was described for the Far East of Russia [ Mamaev, Zaitzev, 1998]. Registered in Sweden [Jaschhoff, Jaschhoff, 2013; Gagne, Jaschhoff, 2021]. According to the data in BOLD database the species is also known from the 2 specimens caught in Germany , Munih suburbs and determined by M. Jaschhof. We prove the distribution of the species in European Part of Russia .

Competing interests. The authors declare no competing interests.

Acknowledgements. The investigation was supported by the Russian Science Foundation No 22-14-00363.

Figures

Fig. 2. Camptomyia drymophila Mamaev et Zaitzev, 1998, male holotype specimen. Рис. 2. Camptomyia drymophila Mamaev et Zaitzev, 1998, голотип, самец.