Parameletus minor ( Bengtsson 1909 )

Tiunova, Tatiana M., 2008, Two new species of Parameletus Bengtsson, 1908 (Ephemeroptera: Siphlonuridae), and notes on other species from the Far East of Russia, Zootaxa 1725, pp. 17-26 : 23-25

publication ID

https://doi.org/ 10.5281/zenodo.181200

DOI

https://doi.org/10.5281/zenodo.6232550

persistent identifier

https://treatment.plazi.org/id/406B8781-1353-FFF6-FF6F-FB2F0E7EFD70

treatment provided by

Plazi

scientific name

Parameletus minor ( Bengtsson 1909 )
status

 

Parameletus minor ( Bengtsson 1909) View in CoL

( Figs. 24–30 View FIGURES 24 – 30 )

Remipalpus minor Bengtsson 1908:242 , nomen nudum. Potameis minor Bengtsson 1909:15 .

Parameletus minor: Bengtsson View in CoL : 1930:15.

Material examined. RUSSIA. Southern Yakutia: Ungra River Basin, Yuhktinka stream, mouth, light tributary of Yuhkta River, 28.VII – 1.VIII 2006, T. Tiunova, 1 male imago, 2 male and 1 female subimago. Khabarovskiy Kray: Priochot’e, Ul’ya River Basin, Khetana River, 7 km upper mouth, 13.VIII 1985, V Zherikhin, 1 male imago; same place, 23.VIII 1985, V Zherikhin, 1 male imago; Nikolaevskiy Region, Bolshaya Iski River, about 4 km upper mouth, 28.VI – 3.VII 2005, T Tiunova, 5 male imagines, 1 female imago (reared from larvae); Amur River Basin, Mutii River, near motor-car bridge, line Khabarovsk-Nikolaevsk-on-Amur Town, 30.VI 2005, T Tiunova, 9 male imago, 3 female imagines; same place, stream, right tributary of Mutii River, 30.VI 2005, T Tiunova, 1 male imago, 2 larvae; Tumnin River Basin, Stream Asecta, 100 m upper mouth, light tributary of Tumnin River, 29.VI 1997, T Tiunova, 1 male imago; Chor River Basin, stream near Srednechorskiy Village, 50 m upper mouth, right tributary Chor River, 13.VI 1995, T Tiunova, 4 male imagines.

Male imago. Dimensions: length (mm): body 8.0–10.6; fore wings 8.0–10.1; cerci 11.3–16.7. Total color of living imago dark brown. Head: upper portion of eyes light gray. Thorax: medioscutum and submedioscutum brown; sublateroscutum and posterior scutal protuberance dark brown ( Fig. 30 View FIGURES 24 – 30 ); mesosternum from dark brown to black. Fore legs brown, middle and hind legs light brown. Length (mm) of foreleg segments: femora 1.8–2.2; tibiae 1.5–2.0; tarsal segments 0.9–1.0, 1.0–1.3, 1.0–1.3, 0.8–1.0, 0.5–0.7. The relation of length to the maximal width makes for fore wing – 2.53, hind wing – 1.58. Abdomen: terga dark brown; terga 2–6 partial translucent with dark band on posterior margins; terga 7–9 opaque, tinged with whitish and with pair of elongated dark brown spots in middle part; lateral part in of posterior margins darkening. Sterna 2–6 brown, translucent; sterna 7–9 dark brown, opaque. Gonostyli pedestal, first and basal part second gonostylus segments and styliger dark brown; other gonostylus segments some lighter; posterior margin of styliger with a broad rectangular projection in middle part ( Fig. 29 View FIGURES 24 – 30 ). Penis dark brown, tinged darkish; external lobes at base thinner than at middle part, with apices pointed and curved inside; inner lobes wide and strong, with furcated top ( Figs. 24–25 View FIGURES 24 – 30 ). Ventral processes dark brown, short, pointed, reach ¼ of length of external lobes ( Fig. 24– 25 View FIGURES 24 – 30 ). Cerci brown.

Distribution. Parameletus minor is Palaearctic species, distributed from Fennoscandia to Far East of Russia ( Fig. 8 View FIGURE 8 ) ( Saaristo & Savolainen 1980; Silfverberg 1984; Söderström & Nilson 1986; Tiunova 2007). Larvae of this species are found in small rivers or streams with cool water only.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Ephemeroptera

Family

Siphlonuridae

Genus

Parameletus

Loc

Parameletus minor ( Bengtsson 1909 )

Tiunova, Tatiana M. 2008
2008
Loc

Parameletus minor:

Bengtsson 1930: 15
1930
Loc

Remipalpus minor

Bengtsson 1909: 15
Bengtsson 1908: 242
1908
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