Macrophya pseudofemorata Li, Wang & Wei, 2014

Li, Ze-Jian, Lei, Zhen, Wang, Jun-Feng & Wei, Mei-Cai, 2014, Three new species of sanguinolenta-group of the genus Macrophya (Hymenoptera: Tenthredinidae) from China, Zoological Systematics 39 (2), pp. 297-308 : 302-304

4.2 Macrophya pseudofemorata Li, Wang & Wei , sp. nov. ( Figs 14–27 )

Female. Body length 9 mm. Body black, palp largely pale brown, a small triangular macula of apical margin of labrum dark brown, following parts white: basal half of mandibles, posterior margin of postocellar area, posterior margin of pronotum, outer margin of tegula, apical margin of all coxae, apical half of the anterior side of fore femur, anterior fore tibia, ventrally most of the fore tarsus, apex of the middle tibia anteriorly, ventrally most of the middle tarsus, hind coxa with a large oval macula on the outer side, hind trochanter, posterior margin with narrow maculae and lateral corners with broad transverse maculae of abdominal tergite 1; hind femur largely dark reddish brown, base with narrow ring and apex black. Body hairs silver, setae on sheath black brown. Wings hyaline, without smoky macula, stigma, and veins black brown ( Fig. 14 ).

Dorsal head less shiny, frons with distinctly dense and coarse punctures and microsculptures, without smooth interspaces between punctures ( Fig. 16 ); labrum and clypeus less shiny, labrum with sparse and shallow punctures, clypeus with slightly dense and large punctures, microsculptures fine. Thorax less shiny, punctures on mesonotum smaller and denser than punctures on head, interspaces with fine microsculptures between punctures; mesoscutellum dim, apex with dense and coarse punctures; mesoscutellar appendage dim, with distinct punctures; metascutellum slightly coarsely punctured; mesepisternum less shiny, with dense and rugose punctures, interspaces narrow and smooth; anepimeron with rugose punctures and microsculptures; anterior 1/5 of katepimeron smooth and shiny, without puncture or microsculpture, posterior 4/5 of katepimeron with distinct punctures and microsculptures; metepisternum less shiny, lateral region of metepimeron minutely and densely punctured, microsculptures fine; ventral region of the metepimeron with a few punctures; metepimeron less shiny, with distinct punctures, interspaces with distinct microsculptures ( Fig. 19 ). Abdominal tergite 1 shiny, laterally with some shallow punctures, medially with fine microsculptures; remainder of abdominal tergites less shiny, slightly densely and minutely punctured, microsculptures fine but distinct. Hind coxa and outer side of hind femur less shiny, slightly minutely and densely punctured, interspaces with fine microsculptures. Surface of sheath with some fine punctures and indistinct microsculpture.

© Zoological Systematics, 39 (2): 297–308

© Zoological Systematics, 39 (2): 297–308

Middle of labrum slightly elevated, anterior margin truncated; clypeus flat, slightly broader than the distance between lower corner of eyes; lateral sides convergent forward, anterior margin deep and arcuate, incised to approximately 2/5 length of clypeus, lateral lobes slightly longer and acute ( Fig. 17 ); malar space 0.5 times the diameter of the middle ocellus; frons flat, ocellus slightly higher than the top of the eyes in lateral view; middle fovea shallow, long punctiform; lateral foveae slightly deep, furrow like; interocellar furrow distinct, postocellar furrow indistinct; POL:OOL:OCL = 5.5:11:6.5; postocellar area slightly elevated, 2.4 times broader than long, lateral furrow slightly broad and deep, divergent backward; head strongly narrowed behind the eyes in dorsal view, occipital carina complete. Antenna slender, 1.3 times longer than the head and thorax combined, 0.9 times as long as the abdomen; antennomere 2 as long as broad; antennomere 3, 1.6 times as long as antennomere 4 (25:16), 0.8 times as long as antennomeres 4 and 5 combined (25:31); antennomeres 4 to 8 weakly dilated and not compressed ( Fig. 18 ). Mesoscutellum distinctly elevated, with a tapered apex, without carina, slightly higher than the top of the mesonotum in lateral view; mesoscutellar appendage with lower and obtuse carina; metascutellum without distinct carina; dorsal-posterior platform of mesepimeron as broad as the diameter of the middle ocellus; post corner of metepimeron round and without appendage; mesopleuron and metapleuron as shown in Fig. 19 ; the distance between the cenchri thrice the breadth of a cenchrus. Inner tibia spur of hind leg approximately 0.6 times the length of the metabasitarsus (11:18); metabasitarsus slender, slightly longer than following 4 tarsomeres combined (9:8); claw with inner tooth shorter than the outer tooth. Ovipositor sheath approximately 0.86 times as long as the metabasitarsus (31: 36), apical sheath slightly longer than basal sheath (17:14), apical margin slightly acute in lateral view ( Fig. 20 ), setae on sheath strongly curved and dense in dorsal view ( Fig. 21 ). Fore wing with vein cu-a joining cell 1M at basal fifth, vein 2r joining cell 2Rs at apical 3/7, vein 2r-m oblique, cell 2Rs slightly longer than cell 1Rs, petiole of anal cell as long as vein 1r-m, approximately 0.5 times as long as vein cu-a; petiole of anal cell in the hind wing approximately 1/3 times as long as vein cu-a, vein cu-a distinctly oblique. Lancet short, with 17 serrulae ( Fig. 24 ), middle serrulae flat and each with 1 proximal tooth and 3 to 4 distal teeth, subbasal tooth very fine, annular spine bands broad, spine sparse, 8th to 10th serrulae as shown in Fig. 25 .

Male. Body length 7.5 mm ( Fig. 15 ); body color and structure similar to female, following parts white: palp largely, labrum, apical 4/5 of clypeus ( Fig. 22 ), tibiae and tarsi of fore and middle legs entirely and all trochanters; outer side of the hind coxa entirely black; antenna slightly setiform, antennomere 2 slightly broader than long ( Fig. 23 ); subgenital plate longer than broad, apical margin rounded; inner side of base of the harpe roundly extruded, weakly narrowed toward the apex ( Fig. 26 ); penis valve as shown in Fig. 27 .

Holotype female, China, Hubei, Yichang, Mt. Shennongjia, Guitouwan (31º28′N, 110º08′E; elev. 2 150 m), 25–28 May 2011, Ze-Jian Li leg. CSCS11022 . Paratype 1 male, China, Hubei, Yichang, Mt. Shennongjia, Guitouwan (31º28′N, 110º08′E; elev. 2 150 m), 19 May 2012, Ze-Jian Li leg., CSCS12054 .

Distribution. China (Hubei).

Etymology. The specific epithet of the new species is composed of pseudo and femorata because the new species is closely related to M. femorata .

Remarks. The new species is a member of the tongi- subgroup of the sanguinolenta -group and is similar to M. femorata Marlatt, 1898 from China (Shandong) and Japan. Compared with M. femorata , M. pseudofemorata is characterized by dorsal head dim, frons densely and coarsely punctured, without interspace between punctures; mesoscutellum distinctly elevated, with tapered protuberance, higher than the top of the mesonotum; posterolateral tergite 1 with distinct white maculae, connected and narrower toward the middle; sheath distinctly shorter than the metabasitarsus, not extended to the apex of the abdomen; lancet short, serrulae flat, subbasal teeth very fine. In M. femorata , dorsal head shiny, frons sparsely and shallowly punctured, interspaces between punctures obvious, mesoscutellum roundly elevated, without protuberance, as high as the top of the mesonotum; posterolateral tergite 1 with small white maculae, not connected toward the middle; sheath slightly shorter than metabasitarsus, distinctly extended to apex of abdomen, setae on sheath slightly curved in dorsal view; lancet slightly longer, serrulae clearly protruded, subbasal teeth clear.

Figures

Figs 14–27. Macrophya pseudofemorata Li, Wang & Wei, sp. nov. 14. Adult female, dorsal view. 15. Adult male, dorsal view. 16. Female head, dorsal view. 17. Female head, anterior view. 18. Female antenna. 19. Female mesopleuron and metapleuron. 20. Ovipositor sheath, lateral view. 21. Ovipositor sheath, dorsal view. 22. Male head, anterior view. 23. Male antenna. 24. Lancet. 25. 8th–10th serrulae of lancet. 26. Gonoforceps. 27. Penis valve. Scale bars: 14, 15 = 1 mm, 25, 27 = 50μm, 24, 26 = 100μm.