Hartigia maculothoracica, 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 : 226-227

3.2 Hartigia maculothoracica sp. nov. ( Figs 11–18 )

Female. Body length 14 mm ( Fig. 11 ). Body and legs black, a band near base of mandible, four short vertical facial bands below toruli, a large rhomb like macula on upper orbit, a small macula on middle of postorbit, narrow posterior margin of pronotum, a central spot on mesoscutellum, dorsal corner of mesepisternum ( Fig. 12 ), lateral posterior corner of abdominal tergites 2 and 6, broad posterior band on tergites 3, 4, 7 and 8, shiny yellow; a large oval macula on outer side of hind coxa, a long stripe on anterior side of fore femur, basal third of each tibia shiny yellow, apical 2/3 of each tibia and each tarsus yellow brown, apical tarsomeres of each tarsus dark brown. Wings hyaline, vein C yellow, pterostigma brown and clearly darker than vein C, other veins dark brown. Body hairs dark brown.

Hairs on frons slightly longer than diameter of middle ocellus, hairs on postocellar area and thorax as long as diameter of lateral ocellus. Clypeus very densely punctured; supraclypeal area and lower inner orbits shallowly and sparsely punctured, shiny; interspace between toruli, frons, ocellar area and middle of inner orbits densely coriaceous, dim; depressed area of upper inner orbit and anterior of lower postorbit polished, shiny; postocellar area, postorbit largely and temple distinctly and evenly punctured, interspaces between punctures very weakly microsculptured, shiny; dorsum of pronotum moderately punctured, shiny, lateral more densely punctured; scutum densely punctured, interspaces between punctures feebly coriaceous, shiny; dorsum of mesoscutellum very weakly punctured, strongly shiny, lateral side sparsely punctured; metapostnotum and first abdominal tergum densely microsculptured, very weakly shiny; mesepisternum densely and minutely punctured, interspaces microsculptured, almost dim, upper corner of mesepisternum smooth; mesepimeron densely microsculptured, dim; abdominal tergites 2–10 densely punctured at middle, anterior and posterior margin smooth, shiny; sternites densely punctured.

Malar space 0.8 times as long as scape and 1.8 times as long as diameter of middle ocellus ( Fig. 13 ); occipital carina extending to middle of postorbit; area between toruli very weakly elevated; distance between toruli 1.1 times as long as distance between torulus and inner margin of eye ( Fig. 14 ); middle fovea shallow, frons flat, without middle furrow; interocellar furrow and postocellar furrow broad and shallow; POL= OOL; postorbit 0.85 times as long as eye in dorsal view and very weakly narrowed backwards, posterior margin of head roundly concave ( Fig. 14 ). Antenna with 26 antennomeres, pedicellum slightly broader than long, third antennomere 1.4 times as long as fourth antennomere, flagellum slightly incrassated beyond sixth antennomere. Pronotum about 0.8 times as long as its posterior breadth, middle longitudinal furrow distinct, anterior margin feebly carinate and deeply incised with depth about 1/5 length of pronotum, posterior margin shallowly and triangularly incised. Cell 1Rs clearly longer than 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 (ovipositor sheath lost after dissection). Lance slender, apical 0.35 with small dorsal teeth ( Fig. 15 ); lancet very weakly broadened at middle with 16 annuli, middle annular sutures each with 2 larger teeth and many minute teeth, two large annular teeth close to each other ( Figs 17–18 ), middle serrulae triangular ( Figs 16–17 ).

Male. Unknown.

Distribution. China (Xinjiang).

Etymology. The specific epithet refers to the yellow macula on the top of mesepisternum.

Holotype ♀, Xinjiang, Bole, Xia’erxili (82°04′33′′E, 45°13′17′′N; elev. 1 263 m), 19 July 2007, coll. Yi-Hai Zhong ( CSCS).

Remarks. This new species is close to H. xanthosoma (Eversmann, 1847) and H. linearis (Schrank, 1781) from Europe. The three species can be separated by the following key.

1. Pterostigma clearly darker than vein C; posterior margin of head clearly concave in dorsal view; pronotum with a deep longitudinal furrow, anterior margin deeply incised to a depth about 1/5 length of pronotum; frons and first abdominal tergum densely coriaceous and dim; postocellar area and temple distinctly and evenly punctured; POL=OOL. China... H. maculothoracica sp. nov. Pterostigma yellow brown and not darker than vein C; posterior margin of head almost straight in dorsal view; pronotum with an indistinct longitudinal furrow, anterior margin shallowly incised to a depth about 1/8 length of pronotum; frons and first abdominal tergum feebly coriaceous and distinctly shiny; postocellar area and temple minutely and very sparsely punctured; POL distinctly shorter than OOL. Europe ....................................................................................................................................................................2

2. Third antennomere about 1.5 times as long as fourth antennomere; face usually entirely black, at most with a small yellow mark; face with sparse punctures; middle fovea obscure; host plant: Filipendula ulmaria (L.) Maxim .......................................................... .................................................................................................................................................... H. xanthosoma (Eversmann, 1847) Third antennomere about 1.3 times as long as fourth antennomere; face usually with a large yellow mark; face withthout distinct punctures; middle fovea distinct, about as large as middle ocellus; host plant: Agrimonia eupatoria L. ............................................... ................................................................................................................................................................. H. linearis (Schrank, 1781)

Figures

Figs 11–18. Hartigia maculothoracica sp. nov. 11. Female, adult, dorsal view. 12. Female, adult, lateral view. 13. Female, head, front view. 14. Female, head, dorsal view. 15. Lance. 16. Lancet. 17. 5th – 9th annuli of lancet. 18. Middle of 9th annulus.