Angarotipula rubzovi ( Savchenko, 1961 )

Paramonov, N. M. & Pilipenko, V. E., 2021, New synonym and new records of craneflies (Diptera: Tipuloidea) in China, Russian Entomological Journal 30 (2), pp. 182-188 : 183-187

Angarotipula rubzovi ( Savchenko, 1961)

Figs 1–19.

Tipula (Angarotipula) rubzovi Savchenko, 1961: 358–360 . Type locality: Irkutskaya oblast, r.Belaya (White river).

Other references: Savchenko, 1964: 184; Liu, Yang, 2010: 61; Brodo, 2017: 12–34.

Angarotipula heilongjiangana Yang et Yang, 1995: 335 . syn.n. Type locality: Heilongjiang, inv. Jiamusi. Other references: Liu, Yang, 2010: 61; Brodo, 2017: 14.

TYPE MATERIAL EXAMINED: HOLOTYPE 1 male: Russia, Irkutskaya oblast , «[river] Belaya, V.S. [Vostochno-Sibirskiy] Kray, 13.vi.1935 (Rubtsov)» . PARATYPUS: Russia, Irkutskaya oblast, 4 males, «st. Novo-Chunka, Irk. obl., 116 km ot Tayshet po Lene, 5.vi.1957 (K.B. Gorodkov)», «koshenie po osoke vdol pridor. kanavy». Amurskaya oblast , 1 male, 1 female, «rr. M. Pera i B. Ergel, mezhdur., Amur. obl., 25.vii.1957 (Zinoviev)». Respublika Buryatiya, 2 females, «Dureny, lev.b. Chikoy, Zabayk., 25.vii.1925, 5.viii.1925 (Mihno)» ( ZIN) .

ADDITION MATERIAL EXAMINED: China, province Heilongjiang: western border of the “Honghe” nature reserve, 47°44.998´N, 133°35.046´E, h= 52 m. a.s.l., meadow vegetation on the banks of water bodies among willow thickets and small-leaved trees, 9 males, 18.v.2018 (A.A. Averin) ( ZIN). Russia, Khabarovsky kray, Imeni Poliny Osipenko District, 5 km N settlement Briakan, 1 male, 21.vii.2006 (S. Holin) ( ZMUM). Primorsky kray, Khasansky District, Lake Khasan , 2 females, 12.vii.1962 (E.P. Narchuk); Spassky District , eastern shore of Lake Khanka : 1 male, 19.viii.1963; 20 km. W city Spassk-Dalny, 3 females, 19.viii.1963, sedge swamp (E.P. Narchuk); Ussuriysky Urban Okrug, settlement Gorno-Taezhnoe, 1 male, 09.viii.1963 (E.P. Narchuk). Amurskaya oblast , Svobodnensky District , settlement Klimoutsy, 40 km W city Svobodny, 1 female, 4.vi.1957; 1 female, 13.vii.1957; 2 males, 25.vii.1957 (A.G. Zinoviev). Respublika Buryatiya: Kyakhtinsky District , settlement Dureny, left bank of the river Chikoy , 1 male, 5.viii.1925 (Mihno) ( ZIN); Severo-Baykalsky District , settlement Uoyan, 1 male, 17.vi.1976 (L.B. Volkova) ( ZMUM) .

DISTRIBUTION. The species is found in Russia in the south of Eastern Siberia (Irkutskaya oblast, Respublika Buryatiya) and in the Far East (Amurskaya oblast, Primorsky kray), and in Mongolia (Tov Province) [ Brodo, 2017]. These are the first records for Heilongjiang Province ( China) and for the Khabarovsky kray in Russia.

NOTES ON SYNONYMY. For China, seven species of the genus Angarotipula Lundstrom, 1907 are indicated [ Liu, Yang, 2010; Oosterbroek 2021]. Angarotipula heilongjiangana Yang et Yang, 1995 , is described from the Heilongjiang province of China. Study of the type material of A. heilongjiangana and of A. rubzovi , as well as additional material from the Heilongjiang province ( China) and the border regions of Russia (Amurskaya oblast, Respublika Buryatiya, Primorsky kray and Khabarovsky kray), revealed the synonymy of these species.

DISCUSSION. Savchenko [1961] suggested that this species could be found in northeastern China; he suggested that “the findings of T. tumidicornis in Harbin by Mannheims (1953) should be attributed to T. rubzovi ”. Meantime, the inaccurate drawing of the terminalia of a male of A. rubzovi in the original description and the variability of the structural coloration served as bases for the description of a new species, A. heilongjiangana Yang et Yang, 1995 . In the original description of A. rubzovi , on the illustration of the terminalia of the male [ Savchenko 1961: p. 359, Fig. 213], the denticles of tergite IX were directed outward, but the written description made no mention of the direction of the apical denticles. The illustrations were made from a pinned dry type specimen, without detaching the terminalia and making the preparation. The terminalia were compressed and partially separated, so the tergite IX and its denticles were distorted. However, the apical denticles are directed straight back and do not bend outward on the specially prepared slides of male terminalia (Fig. 10).

In the description given by Savchenko [1961], it was indicated that the abdominal tergites had a smudgy brown central stripe. This was reflected as well in the taxonomic key by Liu and Yang [2010, p. 61]: “Tergites of abdomen with black or brown central stripe” ( A. rubzovi ) and “Tergites of abdomen uniform in color” ( A. heilongjiangana ). When analyzing the additional material ( China, province Heilongjiang), we have found that the stripe on the abdomen may be poorly expressed or completely absent in the local population of some species (Figs 4–5). According to the taxonomic key proposed by Savchenko (ibid.), “…the first segment of flagellum is longer threefold than the first main antenna segment” ( A. rubzovi ); according to that of Liu and Yang [2010], “Antenna with the first flagellomere is much longer than second flagellomere” ( A. heilongjiangana ). The study of additional material gives evidence that in certain populations there may be specimens that differ not only in the coloration of the antennal segments, but also in their length (Figs 1–2).

The material from Heilongjiang Province ( China) was compared with the type specimen A. rubzovi , and they were found to be identical. Mr. Jinlong Ren ( China Agricultural University, Beijing, China) kindly sent us the photographs of A. heilongjiangana from the same province, as well as photographs of the male terminalia of the type specimen of A. heilongjiangana . In turn, we sent Figures 6–14 (present study) of the male genitalia of A. rubzovi to Mr. Jinlong Ren for comparison with the type of A. heilongjiangana stored in the collection of China Agricultural University. It was determined that A. rubzovi Savchenko, 1961 and A. heilongjiangana Yang et Yang, 1995 were identical, therefore, the latter is a junior synonym.

The original photographs of the head, antennae, abdomen, and parts of the terminalia of both male and female of A. rubzovi are published for the first time in the present paper (Figs 1–19).

As indicated by Savchenko [1961], the antennae of A. rubzovi females are shorter and lighter colored than the males, they do not extend beyond the base of the wings, and the segments of the flagellum are cylindrical (Fig. 3). Terminalia of the female (Figs 15-19) are typical for the genus Angarotipula ; they have short hypogynial valves and lanceolate cerci rounded at the end. The postero-lateral edge of sternite VIII has a large obtuse projection (lobe). The lateral side of sternite IX has a similarly shaped obtuse crest forming a lateral lobe of sternite IX.

19

Prionocera pubescens Loew, 1844

MATERIAL EXAMINED: China, province Heilongjiang, eastern border of the “ Honghe ” nature reserve, 47°51.154´N, 133°46.375´E, h= 51 m. a.s.l., meadow vegetation on the banks of water bodies among willow thickets and forests of small leaved trees, 1 male, 19.v.2018 (A.A. Averin) .

DISTRIBUTION. A widespread Holarctic species; in the southeast Palearctic it is known from the Amurskaya oblast ( Russia) and North Korea. The genus Prionocera and the species P. pubescens are reported from China for the first time.

REMARKS. The world fauna of the genus Prionocera includes 21 species, among which there are species both with a wide Holarctic distribution and those known from local habitats [Oosterbroek, 2021]. Previously, the genus Prionocera was not recorded for China, although it was known from Mongolia, Japan, North Korea, and the regions of Russia bordering on China.