Macrophya zhui Li, Liu & Wei, 2016

Liu, Mengmeng, Li, Zejian & Wei, Meicai, 2016, Two new species of flavomaculata-group of the genus Macrophya Dahlbom (Hymenoptera: Tenthredinidae) from China, Zoological Systematics 41 (3), pp. 300-306 : 303-305

Macrophya zhui Li, Liu & Wei , sp. nov. ( Figs 9–16 )

Female. Body length 10 mm. Body black; palp largely sordid brown; following parts yellowish-white: basal 1/2 of mandibles, labrum, clypeus, posterior margin of postocellar area, narrow maculae on posterior of temple, posterior margin and lateral margin of pronotum, outer margin of tegula, a couple of long triangular maculae on bottom of prescutum of mesonotum, mesoscutellum, posttergite, lateral sides of metascutellum, posterior margin of abdominal tergum 1, transverse maculae on lateral corners of abdominal terga 2–4, center of abdominal terga 7–8 and 10, posterior margins of all sternums, basal margins of fore and middle coxae, apex and a small oval macula on base of outer side of hind coxa, all trochanters, anterior side of fore femur, base and apical margin of middle femur, basal 1/3 of hind femur, fore tibia except for some black stripes on outer side, middle tibia except for base on outer side and apex with black maculae, middle 1/2 on dorsal side of hind tibia, fore and middle tarsomere largely, base largely on dorsal side of metabasitarsus and 2–5 tarsomere of hind leg nearly entire. Body hairs silvery brown, setae on sheath pale yellowish brown. Wings hyaline, without smoky macula, stigma and veins black brown ( Fig. 9 ).

Dorsal head strongly shiny; frons with very sparse and shallow punctures, area largely smooth; inner sides of temple with small smooth area, strongly shiny ( Fig. 10 ); labrum and clypeus shiny, with some minute and shallow punctures, without distinct microsculpture. Pronotum and mesonotum feebly shiny, punctures on mesonotum slightly denser and minuter than punctures on head, not coarse, interspaces clear, with fine microsculpture; mesoscutellum shiny, center with some shallow punctures, without distinct microsculpture; mesoscutellar appendage dull, with some punctures and microsculptures; metascutellum feebly shiny, without distinct punctures, but microsculpture fine. Mesopleuron shiny, mesepisternum densely punctured, interspaces between punctures narrow; upper 1/2 with large punctures, lower 1/2 with minute punctures; anepimeron dull, with coarse wrinkles; anterior margin of katepimeron smooth and shiny, without puncture or microsculpture, middle depressed area of katepimron with distinct microsculptures, posterior area of katepimron with distinct punctures; metepisternum dull, outer side with slightly dense and minute punctures, microsculpture fine, metepimeron less shiny, depressed area with shallow punctures, microsculpture fine but distinct, dorsal margin with some coarse punctures ( Fig. 13 ). Abdominal tergum 1 shiny, lateral sides with some shallow punctures, center nearly smooth; other abdominal terga less shiny, basal 2/3 of abdominal terga 2–5 densely and shallowly punctured, apical 1/3 sparsely punctured; abdominal terga 6–10 densely and minutely punctured, microsculpture fine but distinct. Hind coxa and outer side of hind femur with some minute punctures, interspaces between punctures indistinct, less shiny. Surface of sheath coriaceous, with indistinct punctures and fine microsculpture.

Middle of labrum elevated, anterior margin of labrum truncate; clypeus elevated, base slightly broader than distance between lower corner of eyes; lateral sides distinctly convergent forwards, anterior margin of clypeus half rounded and deeply incised to approximately 1/2 length of clypeus, lateral corners long and obtuse ( Fig. 11 ); malar space 0.4 times as long as diameter of middle ocellus; frons weakly depressed, slightly lower than top of eyes in lateral view; middle fovea shallow and rounded; lateral foveae slightly deep, short furrow-like; interocellar furrow distinct, postocellar furrow indistinct; POL: OOL: OCL = 5: 12: 8; postocellar area elevated, about 2 times broader than long; lateral furrow shallow and divergent backwards; head narrowed behind eyes in dorsal view, occipital carina complete. Antenna slender, 1.3 times longer than head and thorax together (13: 10), 1.2 times longer than abdomen (13: 11); antennomere 2 as long as breadth, antennomere 3, 1.4 times as long as antennomere 4 (10: 7), 0.8 times as long as antennomeres 4 and 5 together (3: 4), middle antennomeres slightly inflated, subapical antennomeres weakly compressed ( Fig. 12 ). Mesoscutellum roundly elevated, without carina or peak, as high as top of mesonotum in lateral view; metascutellum with lower middle carina; dorsal-posterior platform of mesepimeron 0.8 times as broad as diameter of middle ocellus; metepimeron without appendage; distance between cenchri 2 times breadth of a cenchrus; mesopleuron and metapleuron as shown in Fig. 13 . Inner tibial spur of hind leg about 0.6 times length of hind tarsomere 1 (16: 25); hind tarsomere 1 slender, 1.2 times longer than following 4 tarsomeres together (25: 21); claw with inner tooth shorter than outer tooth. Ovipositor sheath clearly shorter than hind tarsomere 1 (19: 25), apical sheath slightly shorter than basal sheath, apical margin roundish in lateral view ( Fig. 14 ). Fore wing with crossvein cu-a joining cell 1M at basal 1/3, crossvein 2r joining cell 2Rs at apical 1/4, cell 2Rs slightly longer than cell 1Rs, anal cell with a long petiole, 2 times longer than crossvein 1r-m; petiole of anal cell in hind wing about 1/3 times longer than crossvein cu-a. Lancet with 21 serrulae ( Fig. 15 ), lancet slightly long and narrow, middle serrulae not protruding and each with 1–2 proximal and 4–5 distal teeth, subbasal teeth large, annular spine bands slightly broad, 8th–10th serrulae at basal as shown in Fig. 16 .

Male. Unknown.

Holotype ♀, China, Hunan, Shimen County, Mt. Huping, Shinianzigou (30°01′N, 110°33′E; elev. 710 m), 1–3 June 2011, CSCS11040 , leg. Chaoyang Zhu.

Distribution. China (Hunan).

Etymology. This new species is named after Mr. Chaoyang Zhu, who collected the holotype of the new species.

Remarks. The new species is similar to M. quadriclypeata Wei & Nie, 2002, it is can be distinguished from other species based on the above key.

Funding This research was supported by the National Natural Science Foundation of China (31172142, 31201736), Hunan Provincial Natural Science Foundation of China (2015JJ2197) and the High Level Talents Projects of Lishui City (2015RC06).

Figures

Figures 9–16. Macrphya zhui Li, Liu & Wei, sp. nov., female, holotype. 9. Dorsal view. 10. Head, dorsal view. 11. Head, anterior view. 12. Antenna. 13. Mesopleuron and metapleuron. 14. Ovipositor sheath, lateral view. 15. Lancet. 16. Serrulae 8th–10th of lancet. Scale bars: 9=1mm, 16=50μm, 15=100μm.