Tipula (Lunatipula) eleniya, Lantsov & Pilipenko, 2021

Lantsov, Vladimir I. & Pilipenko, Valentin E., 2021, A new Palaearctic species of the subgenus Lunatipula (Diptera, Tipulidae) from the West Caucasus with a survey of the caucasica species group, ZooKeys 1048, pp. 145-175 : 145

publication ID

https://dx.doi.org/10.3897/zookeys.1048.67564

publication LSID

lsid:zoobank.org:pub:578795FD-41BF-4807-B001-6F7B5AC4D4B9

persistent identifier

https://treatment.plazi.org/id/2847C4F8-9727-4FC3-BECD-C552B75382C8

taxon LSID

lsid:zoobank.org:act:2847C4F8-9727-4FC3-BECD-C552B75382C8

treatment provided by

ZooKeys by Pensoft

scientific name

Tipula (Lunatipula) eleniya
status

sp. nov.

Tipula (Lunatipula) eleniya sp. nov.

Figs 3 View Figure 3 , 4 View Figure 4 , 5 View Figure 5 , 13B View Figure 13 , 14B, G View Figure 14

Material examined.

Holotype: Russia • 1 male; Krasnodarskiy Kray , Sochi env. Psekhako Mt., 43°41'28"N, 40°22'E; alt. ~ 2000 m; 14-18 Jun. 2008; K. Tomkovich leg.; ZISP GoogleMaps . Holotype in good condition; however, left antenna, front right and left hind legs missing. Paratypes: Russia • 1 male; same data as for holotype GoogleMaps 2 males; Krasnodarskiy Kray, Kamyshanova Polyana env. [Biological station of Krasnodar State University], 44°16'91"N, 40°04'46"E; alt. 1200 m; 26 Jul. 2018; V.. Pilipenko leg.; ZISP .

Diagnosis.

Male. General coloration grey with silver pruinescence. Tergite 9 with deep rounded notches either side of slightly grooved cone-shaped projection. Sternite 8 with a pair of small appendages, each bearing a long medially curved spine, broad base of appendages with fringe of long whitish hairs. Outer gonostylus small, triangular, slightly thickened distally, covered with long setae. Inner gonostylus with small rod-like outgrowth in middle of outer edge.

General description.

Adult (Fig. 3A View Figure 3 ). Male body length 15.7 mm, wing length 16.2 mm, haltere 2.5 mm, nasus 0.13 mm, rostrum 0.8 mm, scape 0.6 mm, pedicel 0.15 mm, 1st flagellomere 0.5 mm. Length (mm) of leg segments, fore (1), mid (2), and hind (3); successively femur, tibia, 1st and 2nd tarsomeres: 1 (9.7; 10.4; 8.5; 3.8), 2 (9.8; 10.5; 9.0; 4.5) and 3 (10.0; 13.0; 9.0; 4.5). Length (mm) of 3rd, 4th, and 5th tarsomeres of all three pairs of legs, approximately the same: 1.0; 0.6; 0.5 mm, respectively.

Description.

Head (Figs 3 View Figure 3 , 13B View Figure 13 ) grey with silvery pubescence. Rostrum grey dorsally, ventrally yellow-brown with sparse light rusty setae in black sockets. Nasus distinct, appearing triangular in dorsal aspect, covered with long, sparse procumbent setae. Frons and gula bare. Vertex (Fig. 13B View Figure 13 ) framed by rows of sparse setae alongside eye, glabrous in center with indistinct narrow longitudinal dark grey line. Genae, including lateral part of rostrum, with very sparse fine pale bristles. Tempora and postgenae with sparse black setae.

Antennae, bent backwards, reaches base of abdomen. Scape grey with silvery pruinescence, pedicel dirty yellow brown. Flagellomeres dark brown with verticils on slightly thickened bases, longest verticils subequal to length of respective flagellomere.

Thorax (Fig. 3A, B View Figure 3 ) grey with silvery pruinescence, and short sparse whitish hairs. Pronotum dark brown with a weak dark stripe medially, and short sparse whitish bristles. Scutum (Fig. 3B View Figure 3 ) with four brownish grey longitudinal stripes, lateral stripe shorter, medial stripes narrowly separated by dirty yellow area. Katepisternum, anepisternum, katepimeron, anepimeron and meron grey, bare, with silvery pruinescence; scutellum and mediotergite light grey with silvery pruinescence; scutal lobes with wide dark grey stripe, bordered by sparse whitish setae and with long yellow setae anterolaterally at wing base. Scutellum framed anteriorly with brown, with sparse yellow setae laterally, and with vague narrow dark grey medial line. Mediotergite light grey with sparse yellow setae and with silvery pruinescence. Laterotergite grey with silvery pruinescence and sparse erect short brown setae.

Wings (Fig. 3A View Figure 3 ) with typical venation for the subgenus, transparent with brownish tin, (viewed in transmitted light). Stigma dirty yellow. Oblique lunule proximal to stigma. Setae on costal and subcostal veins; group of short black macrotrichia distally on R and base of R1. Distal section of Rs, R4 + 5, r-m, base of pentagonal discal cell lighter and weakened. Stem of cell m1 approximately half length of cell. Apex of vein Cu 1 sharply curved at wing margin.

Halteres . Stem grey with base covered with short white setae, knob dark grey.

Legs. Coxae light grey with silvery pruinescence; laterally with long sparse whitish yellow setae; medially with very short yellowish setae. Trochanters yellow with long yellow setae. Femora brown, narrowly yellow at base, covered with adpressed short brown setae; tibiae brownish; tarsal segments dark brown with short, adpressed brown setae. Tibial spur formula 1-2-2. Tarsal claws with a small tubercle at the base (magnification 10 × 4.5); with short but clearly visible arolium between ones.

Abdomen (Figs 3A View Figure 3 , 4A View Figure 4 ). Tergites and sternites grey with silvery pruinescence, and sparse fine short golden setae. Tergites with lateral dark grey intermittent stripe, no distinct dorsal stripe. Tergites laterally and distally edged with whitish-yellow, proximal segments with thinner distal edge, becoming wider on caudal segments.

Terminalia (Figs 4 View Figure 4 , 5 View Figure 5 , 14B, G View Figure 14 ). Hypopygium grey to dark grey, moderately thickened, with silvery pruinescence (Fig. 4A-C View Figure 4 ). Tergite 9 with two deep rounded notches flanking a median cone-shaped projection, the apex of which has a small groove (Figs 4E, F View Figure 4 ; 5G-L View Figure 5 , 14B View Figure 14 ). The dorsolateral edges of the tergite 9 convex, curved inward. Sternite 8 (Fig. 4D View Figure 4 ) with a pair of small appendages bearing long medially curved spine, base of appendages with fringe of long whitish hairs not obscuring gap between. Appendages of sternite 9 (Fig. 4K, L View Figure 4 ) abundantly pubescent. Outer gonostylus (Figs 4G View Figure 4 , 5A-F View Figure 5 , 14G View Figure 14 ) small, triangular, slightly thickened distally, covered with long bristles. Inner gonostylus (Figs 4G, H View Figure 4 ; 5A-F View Figure 5 , 14G View Figure 14 ) with small rod-shaped outgrowth in middle of outer edge (Figs 4G View Figure 4 , 14G View Figure 14 ), twice as long as wide at base, slightly narrower medially, tip obliquely truncate. Posterior part of inner gonostylus a wide triangular plate with short sparse brown bristles in inner surface, long whitish setae in outer one. Gonocoxite (Figs 4G View Figure 4 , 5A-C View Figure 5 ) with two wide dentate outgrowths, ventral one longer, pointed, dorsal one rounded; long yellowish setae laterally on gonocoxite. Gonocoxal fragment (Fig. 4I View Figure 4 ) with short forked extension at base. Semen pump and aedeagus as in Figure 4J View Figure 4 .

Female unknown.

Variation.

Three variants exist of the small rod-like outgrowth of the inner gonostylus: variant I (holotype - Sochi env., Psekhako Mt, alt. 2000 m) (Fig. 5A, D View Figure 5 ), variant II (paratype) (Fig. 5B, E View Figure 5 ) and variant III (paratype) (Fig. 5C, F View Figure 5 ). (variants II and III from Kamyshanova polyna env., alt. 1200 m). There are also some differences in the shape of tergite 9 (Fig. 5G-L View Figure 5 ). Given the paucity of material, and the minor differences observed, the authors consider this to be intraspecific variability.

Comparisons to similar species.

The new species is readily separable from all other species of the subgenus by the presence of an outgrowth medially, on the outer edge of the inner gonostylus (Figs 4G View Figure 4 ; 5A-F View Figure 5 ; 14G View Figure 14 ).

Elevation.

Adults were collected at altitudes ranging from 1200-2000 m.

Flight period.

Adults are active from middle of June through the end of July.

Habitat.

Mixed moderately moist mesophytic plants, shady communities that include common hornbeam ( Carpinus betulus ), oriental beech ( Fāgus orientālis), Nordman fir ( Abies nordmanniana ), ash vulgaris ( Fraxinus excelsior ), field maple ( Acer campestre ), colchis holly ( Ilex colchica ), etc.

Distribution.

Endemic to the Caucasus: currently known from the West Caucasus.

Etymology.

Tipula (Lunatipula) eleniya sp. nov. is named after the mother of the first author, Elena Nikolaevna Lantsova.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Tipulidae

Genus

Tipula