Macrophya yunnana, Li, Zejian, Liu, Mengmeng & Wei, Meicai, 2019

Li, Zejian, Liu, Mengmeng & Wei, Meicai, 2019, Three new species of the Macrophyamaculitibia group (Hymenoptera, Tenthredinidae) with a key to known species from China, Zoosystematics and Evolution 95 (1), pp. 37-48 : 43-46

Macrophya yunnana sp. n. Figures 37-44

Diagnosis.

This new species is very similar to M. jiuzhaina Chen & Wei, 2005 in general morphological characteristics: body and legs mainly black; basal 2/3 of fore wing hyaline, apical 1/3 of below stigma with smoky macula; metepimeronal appendage usually broad and shallow, less shiny, with somewhat dense fine punctures and long hairs; mesoscutellum as high as top of mesonotum; lancet narrow and long, serrulae somewhat oblique, almost linear, middle serrulae each with 2 proximal and 6-13 distal teeth, subbasal teeth somewhat small and clear in both, but can be distinguished from the latter by the following: postocellar area 1.9 × broader than long; metepimeronal appendage 3 × as long and twice as broad as diameter of median ocellus; apical margin of ovipositor sheath somewhat rounded and acute in lateral view; middle serrulae of lancet in female each with two proximal and 6-11 distal teeth. M. jiuzhaina : postocellar area 2.3 × broader than long; metepimeronal appendage 4 × as long and 3 × as broad as diameter of median ocellus; apical margin of ovipositor sheath rounded and slightly obtusein lateral view; middle serrulae of lancet in female each with two proximal and 10-13 distal teeth.

Description.

Holotype: female. Body length 9.5 mm. Body and legs black; following parts white: basal half of mandibles, apical half on anterior surface of fore femur, anterior surface largely of fore tibia, subbasal part of dorsal side of hind tibia. Body hairs pale brown; setae on sheath black-brown. Wings largely hyaline, apical 1/3 of fore wing with smoky macula, stigma, and veins black-brown. (Fig. 37)

Dorsum of head somewhat shiny, frons rugose with dense punctures, interspaces with fine microsculpture (Fig. 38); labrum and clypeus somewhat shiny, punctures on labrum sparse, punctures on clypeus more dense, punctures largely shallow and flat, microsculpture fine. Dorsum of mesonotum somewhat shiny, punctures on mesonotum minute and dense, interspaces with fine microsculpture; mesoscutellum rugose with somewhat large punctures; mesoscutellar appendage somewhat shiny, with indistinct punctures and weak microsculpture; metascutellum dull, with distinct microsculpture; mesepisternum somewhat shiny, with minute and shallow punctures, interspaces with fine microsculpture; anepimeron dull, wrinkles rugose; anterior 1/5 of katepimeron smooth and shiny, without punctures or microsculpture; posterior 4/5 of katepimeron with distinct punctures and microsculpture; lateral region of metepisternum somewhat shiny, with fine punctures and microsculpture; metepimeron someahat shiny, depressed area of metepimeron with sparse and fine punctures, microsculpture faint; metepimeronal appendage somewhat shiny, with fine punctures and indistinct microsculpture, anterior with a smooth and obtuse carina (Fig. 41). All abdominal terga shiny, center of abdominal tergum 1 with fine microsculpture, lateral sides with distinct punctures; other abdominal terga with very sparse and distinct punctures, microsculpture fine but distinct. Hind coxa and outer side of hind femur somewhat shiny, with slightly dense and minute punctures, interspaces between punctures with fine microsculpture. Surface of sheath with fine punctures and indistinct microsculpture.

Anterior margin of labrum more or less truncate; clypeus slightly elevated in lateral view, broader than distance between the shortest distance between lower inner orbits; lateral sides convergent forwards, anterior margin shallowly incised to approximately 1/5 × length of clypeus; lateral corner of clypeus subquadrate, apical margin of lateral lobes short and obtuse (Fig. 39); malar space 0.6 × diameter of median ocellus; frons flat, as high as top of eyes in lateral view; median fovea shallow and fine; lateral foveae slightly deep, furrow-like; interocellar furrow distinct, postocellar furrow indistinct; POL: OOL: OCL = 3: 7: 4; postocellar area slightly elevated, not higher than top of eyes, approximately 1.9 × broader than long (15: 8), lateral furrows deep and divergent backwards; head narrowed behind eyes in dorsal view, occipital carina complete. Antenna slender, 1.3 × longer than head and thorax together, 0.9 × longer than abdomen; antennomere II 1.3 × longer than broad (23: 18), antennomere III 1.7 × as long as antennomere IV (92: 55), as long as antennomeres IV and V together (92: 105), subapical antennomeres slightly dilated and broader than pedicel, weakly compressed, the ratio of antennomeres IV–IX = 55: 50: 36: 32: 30: 33 (Fig. 40). Mesoscutellum elevated, rounded, posterior with a faint peak, lateral sides and center with indistinct carina, as high as top of mesonotum; mesoscutellar appendage with a high and acute median carina, metascutellum with a low and short middle carina; dorsal-posterior platform of mesepimeron as broad as diameter of median ocellus; metepimeronal appendage somewhat broad and shallow, apical margin round, approximately 3 × as long and 2 × as broad as diameter of median ocellus;mesopleuron and metapleuron as in Fig. 41; distance between cenchri 2 × as broad as a cenchrus. Inner spur of hind tibia 0.7 × length of metabasitarsus (20: 29); metabasitarsus slender, 1.1 × length of following four tarsomeres together (29: 26); claw with inner tooth slightly shorter than outer tooth. Ovipositor sheath slightly shorter than metabasitarsus (55: 58), apical sheath slightly longer than basal sheath (31: 21), apical margin somewhat narrow and rounded in lateral view (Fig. 42). Fore wing with vein cu-a joining cell 1M in basal 1/4, vein 2r joining cell 2Rs in apical 1/3, cell 2Rs slightly longer than cell 1Rs, vein 2r-m slightly oblique, anal cell with a short long spot-like vein; petiole of anal cell in hind wing as long as vein cu-a. Lancet with 21 ser rulae (Fig. 43), serrulae oblique and flat, middle serrulae each with two proximal and 6-11 distal teeth, subbasal teeth slightly small, annular spine bands narrow, the 8th -10th middle serrulae as in Figure 44.

Male. Unknown.

Type material.

Holotype, ♀, China: Yunnan Province: Mt Yulongxueshan, Lijiang City, 2700~3100 m, 25.vii.2004, leg. Wei Xiao. Paratypes, Yunnan Province: 1♀, Xiaozhongdian, Xianggelila City, 3000 m, 19.vii.2004, leg. Wei Xiao; Yunnan Province: 1♀, Mt Baimaxueshan, Deqin County, 28°443'N, 98°950'E, 3471 m, 19.vi.2009, leg. Yihai Zhong; Yunnan Province: 1♀, Mt Daorenshan, Yunlong County, 25°32.893'N, 99°11.267'E, 2265 m, 03.vi.2009, leg. Zejian Li.

Host plants.

Unknown.

Distribution.

China (Yunnan).

Etymology.

The specific name is derived from the locality of the new species which is Yunnan Province in Southwest China.