Hartigia fuscicosta, Niu & Xiao & Wei, 2015

Niu, Geng-Yun, Xiao, Wei & Wei, Mei-Cai, 2015, Two new species of Hartigia Schiødte from China (Hymenoptera: Cephidae), Zoological Systematics 40 (2), pp. 223-227 : 224-226

3.1 Hartigia fuscicosta sp. nov. ( Figs 1–10 )

Female. Body length 15–18 mm. Body and legs black, basal 0.65 of mandibles, lower half of inner orbit, a reversed V-shape macula on supraclypeal area (sometimes separated at middle), a minute dot on upper orbit, a short stripe on latero-posterior corner of second tergite, a large and curved stripe on lateral of tergites 3–4, shiny yellow; anterior side of fore femur near apex, anterior side of fore tibia, yellow brown; fore and middle tibiae black brown. Wings hyaline, extreme narrow apical margin dark brown, vein C and posterior margin of pterostigma fuscous, anterior margin of pterostigma black brown. Body hairs black brown.

Hairs on dorsum of head and upper half of mesopleuron about as long as diameter of lateral ocellus. Ocellar area, upper half of inner orbit, lower 0.4 of postorbit impunctate and without microsculpture, strongly shiny; supraclypeal area weakly rugose and sparsely punctured, shiny; lower half of inner orbit and upper 0.6 of postorbit microsculptured, less shiny; frons coriaceous, feebly shiny; postocellar area and temple minutely and sparsely punctured, interspaces polished; dorsum of pronotum minutely and sparsely punctured, more densely punctured laterally; mesonotum including most part of mesoscutellum densely punctured, interspaces between punctures coriaceous, less shiny, posterior margin of mesoscutellum smooth, shiny; metapostnotum and first abdominal tergum densely microsculptured, very weakly shiny; mesepisternum densely and minutely punctured, interspaces strongly microsculptured, almost dim; mesepimeron densely microsculptured, dim; abdominal tergites 2–10 minutely and densely punctured, interspaces polished, shiny.

Malar space 0.85 times as long as scape and 2 times as long as diameter of middle ocellus ( Figs 4, 5 ); occipital carina extending to top of postorbit; area between toruli weakly and roundly elevated; distance between toruli 1.1 times as long as distance between torulus and inner margin of eye ( Fig. 3 ); middle fovea obscure, frons without middle furrow; interocellar furrow absent, postocellar furrow very shallow; POL: OOL= 7: 8; postorbit 0.8 times as long as eye in dorsal view and weakly narrowed backwards, posterior margin of head distinctly but not strongly concave ( Fig. 3 ). Antenna with 27–28 antennomeres, pedicellum slightly broader than long, third antennomere 1.2 times as long as fourth antennomere, flagellum slightly incrassated beyond sixth antennomere. Pronotum as long as posterior breadth, middle longitudinal furrow indistinct, anterior margin feebly carinate and weakly incised with depth about 1/9 length of pronotum, posterior margin deeply and triangularly incised. Cell 1Rs about as long as 2Rs. Metabasitarsus 1.15 times as long as following three tarsomeres together, claw with inner tooth shorter than apical tooth. Ovipositor sheath slightly longer than metabasitarsus, apical sheath distinctly broadened toward base and about 0.85 times as long as basal sheath, dorsal margin roundish ( Fig. 6 ); in dorsal view sheath slightly broadened toward base and about 3 times as long as cercus ( Fig. 7 ). Lance slender, apical 0.55 with acute dorsal teeth ( Fig. 8 ); lancet distinctly broadened at middle with 18 annuli, annular sutures distinctly teethed, two large annular teeth of middle sutures far remote to each other, serrulae narrowly rounded toward apex ( Fig. 10 ).

Male. Body length 15 mm. Body color and structure similar to female except for: supraclypeal area largely, inner margins of propleura, a large macula on ventral side of fore and middle coxae, small apical dot on ventral side of hind coxa and each trochanter, anterior side of fore and middle femora and tibiae, shiny yellow; posterior margin of abdominal sternites 7–8 straight, sternite 9 much shorter than sternite 8, apical margin obtusely truncate; harpe narrow, about 2.2 times as long as broad, apical margin round.

Distribution. China (Jilin).

Etymology. The specific epithet refers to the dark brownish costal vein of the new species.

Holotype ♀, Jilin , Baihe , Mt . Changbai, Bingshuiquan (42 °09′00′′N, 128 °11′30′′E; elev. 1 240 m), 24 July 2012, coll. Ze-Jian Li, Meng-Meng Liu. Paratypes: 6♀, same data as the holotype (CSCS); 1♀, Jilin, Mt. Changbai , Canyon Stone Forest, (42°11′02′′N, 128°11′01′′E; elev. 1 135 m), 8 July, 2014, coll. Biao Chu; 3♀, Jilin, Mt. Changbai, fire tower, (42°04′ 58′′N, 128°13′43′′E; elev. 1 400 m), 9 July, 2014, coll. Biao Chu; 1♂, China, Jirin [Jilin], Yanbian, Housihe (42°32′13′′N, 128°16′33′′E;elev. 590 m), 23 July 2010, coll. Jong-Wook Lee (YUK) .

Remarks. This new species is close to H. etorofensis Takeuchi, 1955 from Sakhalin Island of northeastern Asia but differs from it by antenna with 27–28 antennomeres; temples and postocellar area shiny, without distinct microsculpture; the posterior side of fore tibia and entire fore tarsus dark brown in female, and the anterior side of middle femur and middle tibia shiny yellow in male; the vein C dark brown. In H. etorofensis Takeuchi antenna with 30 antennomeres; temples and postocellar area dull and strongly coriaceous; the fore tibia and fore tarsus yellow in female, and the anterior side of middle femur and middle tibia black in male; the vein C and base of pterostigma yellow.

Figures

Figs 1–10. Hartigia fuscicosta sp. nov. 1. Female, adult, dorsal view. 2. Male, adult, dorsal view. 3. Female, head, dorsal view. 4. Female, head, front view. 5. Male, head, front view. 6. Ovipositor sheath, lateral view. 7. Ovipositor sheath, dorsal view. 8. Lance. 9. Lancet. 10. 5th– 8th annuli of lancet.