(Figs. 19, 20)
Camptocladius trilineatus Lundström, 1915: 15.
Paralimnophyes arcticus Brundin, 1956: 130, syn. n.
Type material examined. RUSSIA: New Siberian Islands, south coast, "Holzgebirge”, lectotype ɗ, here designated, 22 vi 1903, M. I. Brussnew; paralectotypes 2 ɗ, 1 Ψ, 3 & 16 vi 1903, M. I. Brussnew.
MALE IMAGO (n = 1–3)
Total length 3.10–3.55 mm. Wing length 1.65–1.80 mm. Total length/wing length 1.83–1.98. Wing length/length of profemur 2.55–2.65. Coloration totally brownish black.
Head. AR 0.86. Ultimate flagellomere 459 m long. Temporal setae 8, including 1–2 inner verticals, 4–5 outer verticals, and 1–3 postorbitals. Clypeus with 18–23 setae. Tentorium 169 m long, 30–38 m wide. Stipes 150–169 m long, 41 m wide. Palpomere lengths (in m): 53, 60–71, 94–109, 86– 98,124. Third palpomere with 1–2 lanceolate sensilla clavata 15–23 m long.
Thorax. Antepronotum with 2 setae. Acrostichals 7–8 (scalpellate, in centre of scutum), dorsocentrals 13–14, prealars 3–4. Scutellum with 8–10 setae.
Wing. VR 1.22–1.33. Costal extension 64 m long. Brachiolum with 1 seta, R with 13–15 setae, R 1 with 1–2, R 4 + 5 with 5 setae. Squama with 5–6 setae.
Legs. Spur of front tibia 60–68 m long, spurs of middle tibia 26–30 and 23 m long, of hind tibia 45–56 and 19–26 m long. Width at apex of front tibia 45–53 m, of middle tibia 45–60 m, of hind tibia 56– 60 m. Sensilla chaetica 8–11 on ta 1 of mid leg, about 10 on ta 1 of hind leg. Lengths (in m) and proportions of legs:
Hypopygium (Fig. 19). Tergite IX reticulate, with 16–20 setae; laterosternite IX with 8 setae. Anal point parallelsided, 34–41 m long, on 94 m long, 113 m wide triangular base. Phallapodeme 113–143 m long, with rounded phallapodeme lobe; transverse sternapodeme 143–169 m long, oral projections well developed. Gonocoxite 300–341 m long. Gonostylus 105–131 m long, parallelsided, crista dorsalis long and low, megaseta 15 m long. HR 2.60–2.86, HV 2.71–2.95.
FEMALE IMAGO (n = 1)
Total length about 3.0 mm. Wing length 1.85 mm. Total length/wing length about 1.6. Wing length/length of profemur 3.27. Coloration as in male.
Head. AR 0.51. Length of flagellomeres (in m) as: 75, 60, 68, 41, 135. Temporal setae 8, consisting of 2 outer verticals; 4 inner verticals, and 2 postorbitals. Clypeus with 18 setae. Tentorium 169 m long, 23 m wide; stipes 139 m long, 30 m wide. Palpomere lengths (in m): 49, 56, 75, 83, Pm 5 lost.
Thorax. Antepronotum with 2 lateral setae. Acrostichals 12 (scalpellate), dorsocentrals 18, prealars 4. Scutellum with 12 setae.
Wing. VR 1.21. Costal extension 49 m long. Brachiolum with 1 seta, R with 14, R 1 with 9, R 4 + 5 with 7 setae. Squama with 7 setae.
Legs. Spur of front tibia 41 m long, spurs of mid tibia 30 m and 23 m long, spurs of hind tibia 26 m and 24 m long. Width at apex of front to hind tibiae (in m) as: 45, 49, 56. Comb of 11 setae; shortest seta 26 m long. longest seta 41 m long. Sensilla chaetica 14 on ta 1 of front leg, 13 on ta 1 of mid leg, and 8 on ta 1 of hind leg. Lengths (in m) and proportions of legs:
Abdomen. Tergite I with 22 setae, T II–VII each with 25–32 setae, T VIII with 22 setae. Setae on sternites I–VIII as: 0, 6, 11, 15, 19, 19, 20, 15.
Genitalia (Fig. 20). Tergite IX apparently undivided, with 20 setae. Gonocoxite with 13 setae. Cercus 135 m long. Seminal capsule 98 m long, 83 m wide; with wide, long, curved neck. Spermathecal ducts with very long loops. Gonapophysis VIII divided, with large ventrolateral lobe and narrow dorsomesal lobe. Notum 150 m long.
Remarks
All details of this easily recognisable species are in accordance with those given by Brundin (1956: 130) as well as the few details given by Lundström (1915: 15).