Cylloceria ebbae Liu & Reshchikov sp. nov.

(Figs 1–6)

Material examined. Holotype, 1♀, THAILAND, Chiang Mai, Chomthong, Fang, Doi Pha Hom Pok National Park, Route to summit, trap2, 20°03’08.0"N 99°08’36.2"E, 2059 m., Malaise trap, 30.iv.–29.v.2014, leg. W. Srisuka, R. Sawkord, T. Somboonchai, S. Suriya (QSBG).

Paratypes: THAILAND: 1♂, Chiang Mai, Doi Phahompok, N.P., Kiewlom 1/montane forest, 20°3.549′N, 99°8.552′E, 2174 m., 14–21.x.2007, Malaise trap, leg. P. Wongchai, T6180, (QSBG) ; 3♂♂, same as the Holotype, (QSBG);. 1 ♂, Chiang Mai, Chomthong, Fang, Doi Pha Hom Pok National Park, Route to summit, trap1, 20°03’01.5"N 99°08’38.6"E, 2036 m, Malaise trap, 30.iv.–29.v.2014, leg. W. Srisuka, R. Sawkord, T. Somboonchai, S. Suriya (QSBG) ; 1 ♂, the same as previous Paratye, NHRS-HEVA000008366 (NHRS); 1 ♂, Chiang Mai, Chomthong, Fang, Doi Pha Hom Pok National Park, Route to summit, trap3, 20°03’17.7"N 99°08’32.6"E, 2105 m, Malaise trap, 1–30.iv.2014, leg. W. Srisuka, R. Sawkord, T. Somboonchai, S. Suriya, NHRS-HEVA000008365 (NHRS) ; MYANMAR: 3♂♂, Kachin state, Kambaiti, 2000 m, 25.v.1934, leg. René Malaise, NHRS-HEVA000008355–8357 (NHRS) ; 2♂♂, Kachin state, Kambaiti, 2000 m, 28.v.1934, NHRS- HEVA000008358–8359, NHRS ; 1♂, same data except 1.vi.1934, HEVA000008360, NHRS; 2♂♂, same data except 8.vi.1934, HEVA000008361–8362, NHRS; 2♂♂, same data except 11.vi.1934, HEVA000008363–8364, NHRS .

Diagnosis. This species differs from other species in the genus by a combination of the following characteristics: first flagellomere (in female) 10.8× as long as its medial width; frons with irregular wrinkles on lower half above antennal sockets; epomia strong (Fig. 2D); mesoscutum rugose-punctate, densely setose; lateral carina of scutellum present at basal 0.4; hind wing of female with Cu & cu-a intercepted at middle (Fig. 3D); mesopleuron with transverse wrinkles below speculum (Fig. 2D); posterior area of propodeum with a medial carina (Fig. 2C); T2 coriaceous (Figs 3E, 6D); T3–7 polished; hind leg dark brown (female) or blackish brown (male) with tarsus testaceous.

Description. Holotype female (Figs 1–3) Body length 9.5 mm, fore wing length 7.8 mm. Head (Figs 2A, 2B). Face 1.7× as wide as high, punctate and pubescent, centrally rugose-punctate, dorsal margin between antennal sockets with a small tubercle; with two shallow longitudinal depressions between antennal sockets and tentorial pits. Clypeus with basal 0.2 transversely convex, rest of clypeus flattened, sparsely and superficially punctate. Mandible with both teeth equal in length, but with upper tooth wider than lower tooth. Malar space 0.8× as long as basal width of mandible, finely granulate. Frons with irregular wrinkles above antennal sockets, a short medial carina between antennal sockets, and punctulate on dorsal half. Gena obliquely narrowed behind eyes, 0.4× as long as eye in dorsal view, moderately densely setose and punctulate. Vertex weakly sloping behind posterior ocelli, densely punctulate. POL:OD:OOL = 7:10:8. Antenna with 27 flagellomeres, first flagellomere (Fig. 3A) 10.8× as long as its medial width, second flagellomere 7.0× as long as its medial width, third flagellomere 5.8× as long as its medial length. Occipital carina strong and complete, meeting hypostomal carina distinctly above the base of mandible by 0.67× basal mandibular width.

Mesosoma (Figs 2D, 2E). Pronotum centrally rugose, with short transverse wrinkles along posterior margin, upper lateral corner with scattered minute punctures, its anterior lower corner with a small polished area. Epomia strong, subvertical. Mesoscutum densely punctate, centrally coarsely rugose. Notaulus deep on anterior 0.6 of mesoscutum, gradually replaced by wrinkles centrally; medial lobe of mesoscutum normally convex anteriorly in lateral view. Scutellum superficially punctate centrally with some larger punctures on anterior lateral corners, polished between punctures, lateral carina present on basal 0.3 of scutellum. Epicnemial carina strong, reaching upper 0.7 of mesopleuron. Mesopleuron (Fig. 2D) with anterior half densely rugose-punctate, with transverse wrinkles below speculum, posterior lower part rugose. Speculum polished. Metapleuron (Fig. 2D) strongly rugose and setose. Submetapleural carina strong, roundly convex anteriorly. Propodeum (Figs 2C, 2F) strongly rugose, medial longitudinal carinae with basal half distinct and subparallel, the apical half wrinkled; lateral and pleural carinae complete; apical transverse carina complete; posterior area polished, with a medial longitudinal carina (Fig. 2C). Spiracle oval.

Wings (Fig. 3D). Pterostigma 3.8× as long as wide. Fore wing with 1cu-a slightly basad of Rs & M, 2rs-m 0.4× the length of 1M between 2rs-m and 2m-cu; 3rs-m absent, 2Cu 2.5× the length of 2cu-a; hind wing Cu & cu-a interrupted at middle, distal abscissa of 1Cu distinctly pigmented.

Legs. Hind femur 5.0× as long as its maximum width; ratio of hind tarsomeres: 8.3: 3.7: 2.5: 1.0: 2.3. Claws strongly bent (Fig. 3B).

Metasoma. T1 rugose, with apical 0.2 centrally finely shagreened, 1.85× as long as its apical width, dorsolateral and medial dorsal carinae weakly indicated (Fig. 3E). T2 finely shagreened, 0.7× as long as wide, thyridium present, small. T3–7 subpolished, shortly setose. Ovipositor 2.0× as long as hind tibia, upper valve of ovipositor with a subapical notch.

Colour. Head and mesosoma black (Fig. 1). Mandible with basal 0.4 testaceous and apical 0.6 blackish brown (Fig. 2A). Palpi yellow. Antenna dark brown, ventral side of scape with yellowish brown mark (Fig. 2A), first and second flagellomeres dark brown (Fig. 3A). Fore and middle legs testaceous, with coxae and dorsal sides of trochanters darker; hind leg dark brown, hind tarsus testaceous (Fig. 3B). T1 black with apical 0.2 brown (Fig. 3E), T2 dark brown anteriorly and light brown posteriorly (Fig. 3E), T3 black with apical margin yellowish brown, T4 to T6 blackish brown, T7 brown (Fig. 1). Wings hyaline, tinged with smoky yellow, veins and pterostigma fuscous (Fig. 3D). Ovipositor sheath black (Fig. 1). Setae of body yellowish white.

Paratype male (Figs 4–6). Body length 9.3 mm, fore wing length 8.2 mm.

Head. Face (Fig. 5A) 0.7× as high as wide, densely and closely rugose-punctate, central elevation granulatepunctate, dorsal margin between antennal sockets with a small tubercle; with two shallow longitudinal depressions between antennal sockets and tentorial pits. Clypeus with basal 0.2 transversely convex, the rest of clypeus flattened, shiny, with sparse, minute punctures. Mandible with both teeth equal in length, but with upper tooth wider than the lower tooth, outer surface basally rugose-punctate. Malar space 0.7× as long as basal width of mandible, finely granulate. Frons subpolished, with irregular wrinkles, dorsally with sparse minute punctures. Gena oblique narrowed behind eyes, 0.46× as long as eye in dorsal view, with moderately dense setae and minute punctures. Vertex weakly sloping behind posterior ocelli, with moderately dense minute punctures. POL:OD:OOL = 7:10:9. Antenna with 26 flagellomeres, first flagellomere 7.5× as long as its medial width, second flagellomere 5.6× as long as its medial width, third flagellomere 5.6× as long as width; semicircular notches (Figs 6A, 6B) on third and fourth flagellomeres moderately deep. Occipital carina strong and complete, meeting hypostomal carina distinctly above the base of mandible.

Mesosoma (Figs 5C, 5D). Pronotum with irregular winkles on central depression, with short transverse wrinkles along posterior margin, its posterior upper corner with minute punctures. Epomia strong, subvertical. Mesoscutum (Fig. 5C) densely punctate, central area between tegula rugose, medial lobe weakly convex. Notaulus deep on anterior 0.6 of mesoscutum. Scutellum superficially punctate except for some larger punctures on anterior lateral corner, lateral carina reaching to 0.5 the length of scutellum, but weak. Epicnemial carina reaching to upper 0.7 of mesopleuron, with upper end close to anterior margin of mesopleuron. Mesopleuron (Fig. 5D) with anterior half weakly rugose-punctate, with transverse wrinkles below speculum, lower part shallowly rugose and punctate. Speculum polished. Metapleuron strongly rugose. Submetapleural carina strong, anteriorly roundly convex. Propodeum strongly rugose with medial longitudinal carinae parallel and sharp; lateral and pleural carinae sharp and complete; apical transverse carina complete and sharp; posterior area polished, with a medial longitudinal carina (Fig. 6C). Spiracle oval.

Wings. Pterostigma 4.2× as long as wide. Fore wing with 1cu-a opposite Rs & M, 2rs-m 0.5× the length of 1M between 2rs-m and 2m-cu; 3rs-m absent, 2Cu 2.0× the length of 2cu-a; hind wing with Cu & cu-a interrupted slightly above middle, distal abscissa of 1Cu distinctly pigmented.

Legs. Hind femur 4.4× as long as its maximum width; ratio of hind tarsomeres: 6.1: 2.8: 1.9: 1.0: 1.9. Claws strongly bent.

Metasoma. T1 rugose (Figs 6D, 6E), with apical 0.3 finely shagreened, 2.0× as long as its apical width; dorsolateral carina weakly indicated. T2 finely shagreened (Fig. 6D), 0.8× as long as its apical width, thyridium small. T3–7 subpolished, shortly setose. Parameres (Fig. 5F) 2.5× as long as medial width, apically rounded.

Colour. Head and mesosoma black (Fig.4). Mandible with basal half yellow, apical half dark brown (Fig. 5A). Palpi testaceous (Fig. 5D). Antenna fuscous, with scape, pedicle, and first to third flagellomeres yellowish-brown (Fig. 6A). Fore and middle legs testaceous; hind leg blackish-brown, with trochanters dark testaceous, hind tarsus testaceous (Fig. 4). T1 dark testaceous with basal part before spiracle blackish (Fig. 6D); T2 dark testaceous (Fig. 6D); T3 to T7 dark brown with apical margins orange (Fig. 4). Wings hyaline, tinged with smoky yellow, veins and pterostigma blackish-brown (Fig. 4). Setae on body yellowish brown.

Variations. Body length 9.0– 9.3 mm. Posterior area of propodeum usually with a medial longitudinal carina, (sometimes missing in specimens from Myanmar). Hind legs with femur and tibia from dark brown to blackishbrown. T1 testaceous to dark brown, or sometimes brown with basal 0.3 testaceous.

Comments. We compared C. ebbae sp. nov. with the original description of C. tipulivora (type specimen is lost), and our species differs by the following character states: face densely and closely rugose-punctate (distance between punctures about 2.0× of their diameters in C. tipulicora). Mesopleuron strongly rugose-punctate, with some transverse wrinkles below speculum (mesopleuron polished, with scattered minute punctures in C. tipulivora). Hind wing with 1Cu & cu-a interrupted at its middle (interrupted above its middle in C. tipulicora).

Cylloceria ebbae sp. nov. differs from Palaearctic species C. ano Uchida, 1928, C. ussuriensis Humala, 2002, C. orientalis Humala, 2002 and C. koreensis Choi & Lee, 2016 in having the hind leg dark brown with tarsus testaceous (hind leg of the latter four species entirely black). It differs from C. invicta Rossem, 1987 by having tarsal claw strongly bent (tarsal claws weakly bent in C. invicta) and frons with irregular wrinkles (frons with regular longitudinal striation in C. invicta). It differs from C. caligata (Gravenhorst, 1829) in having mesopleuron rugose-punctate anteriorly (mesopleuron polished, entirely weakly punctate in C. caligata). It differs from C. orientalis Humala, 2002 by subapical notch in ovipositor (ovipositor without a subapical notch in C. orientalis) and antenna with 26 flagellomeres (antenna with 19–21 flagellomeres in C. orientalis).

Compared with C. imperspicua Rossem, 1987 and C. sylvestris (Gravenhorst, 1829), the new species can be distinguished from the latter two species in having mesopleuron rugose-punctate anteriorly and with transverse wrinkles below speculum (mesopleuron polished in the latter two species) and its hind femur dark brown (hind femora orange brown in the latter two species).

It differs from C. melancholica by having its first flagellomere 10.8× as long as wide (first flagellomere 7– 9.5× as long as wide in C. melancholica) and having hind leg dark brown with tarsus testaceous (hind leg with coxa and femur reddish, tibia and tarsus dark brown in C. melancholica).

It differs from C. brachycera Humala, 2002 in longer ovipositor and first flagellomere 10.8× as long as wide (ovipositor very short and flagellomere 7.0× as long as wide in C. brachyceria).

It also differs from C. fusciventris (Hellén, 1940) by T3 to T6 blackish brown (T2 and subsequent tergites reddish brown in C. fusciventris). It differs from C. occupator (Gravenhorst, 1829) in having frons with irregular wrinkles, T3 to T6 blackish brown and T2 shagreened (frons with rough sculpture, T2 to T4 orange-brown and T2 with coarse longitudinal rugosity laterally in C. occupator).

It can be separated from C. borealis (Roman, 1925) in having the ultimate segment of flagellum not clubshaped, T1 narrow and antenna with 26 flagellomeres (ultimate segment of flagellum club-shaped, T1 very wide and antenna with 17–19 flagellomeres in C. borealis).

Distribution. Northern Myanmar, Northern Thailand.

Etymology. The species named after Ebba Malaise, wife of René Edmond Malaise.