Macrophya lishuii Li, Liu & Wei, 2020

Liu, Mengmeng, Li, Zejian & Wei, Meicai, 2020, Key to the Macrophya zhaoae group (Hymenoptera, Tenthredinidae) with description of a new species from China, Alpine Entomology 4, pp. 65-72 : 65

Macrophya lishuii Li, Liu & Wei sp. nov. Figure 1

Type locality.

China: Zhejiang.

Type material.

Holotype. ♀ (LSAF19027), China, Zhejiang Province, Lishui City, Suichang County, Mt. Jiulong, Jiulong Hotel, 28°23.640'N, 118°50.700'E, alt. 482 m, 24.V.2019, Zejian Li leg., ethylacetate; Paratypes. 2♀, same date as holotype.

Diagnosis.

The new species is similar to M. nigrospuralina in external morphological characters, i.e. the apical antennomeres 6-9 of antenna entirely yellowish-white; hind femur entirely orange-brown; apical parts of fore and middle coxae and apical 1/3 of hind coxa with yellowish-white maculae; posterior margins of abdominal terga 1-8 with long maculae, distinct yellowish-white; lancet with 20 serrulae, sub-triangularly protruding, middle serrulae with 1 proximal and 3-6 distal teeth.

Description.

Female. Body length 15 mm. Body mostly black. The following parts are yellowish-white: palp mostly, center of mandibles, labrum, clypeus, postocellar area, narrow macula on outer margin of eyes, antennomeres 6-9 except base of antennomere 6 with some black macula, posterior margin and large maculae on lateral corners of pronotum, apical half of tegula, double triangular maculae on bottom of prescutum, lateral round maculae on mesoscutellum, post tergite mostly, metascutellum except a black macula, cenchrus, narrow macula on posterior margin of anepimeron, a large macula of katepimeron, narrow macula on posterior margin and a small macula on posterior corner of metepimeron, a row of lateral maculae on abdominal terga 1-8 (the widest macula of abdominal tergum 1, the narrowest macula of abdominal tergum 8), posterior margins of abdominal terga 1-8 with long maculae (macula full between posterior margins and lateral maculae of abdominal terga 1-2, the narrowest macula with long macula of abdominal tergum 8), long triangular macula on posterior margin of abdominal tergum 10. Legs mostly orange-brown; fore and middle coxae except bases with black maculae, apical 1/3 and outer surface with an oval macula of hind coxa and all trochanters yellowish-white; apical dorsum of hind femur, apical parts of hind tibia (black macula on inner surface 1/4 length of hind tibia) and claw of hind tibia black. Body hairs dense and short, mostly silver; setae on ovipositor sheath curved and long, blackish-brown. Wings hyaline, apical 1/3 of fore wing smoky roundishly below pterostigma, most veins and pterostigma blackish-brown. (Figure 1a, b )

Vertex less shiny than in M. nigrospuralina ; frontal area shallowly and sparsely punctured, smooth interspaces distinct and smooth, microsculpture weak (Figure 1c ); labrum and clypeus less shiny, punctures on its surfaces sparse and shallow, microsculpture weak (Figure 1d ). Mesonotum less shiny, punctures on mesonotum smaller and denser than punctures on head, interspaces distinct and smooth; center of mesoscutellum with some large punctures, interspaces broader than diameter of a puncture; mesoscutellar appendage mostly and metascutellum entirely smooth and shiny, but bottom of mesoscutellar appendage with weak microsculpture and sparse shallow punctures; metascutellum dull, without distinct punctures, but with weak microsculpture. Mesopleuron less shiny, mesepisternum with dense and coarse punctures, upper half with punctures large and interspaces broad, lower half with punctures small and interspaces narrow; anepimeron dull, with coarse wrinkles; anterior margin of katepimeron very smooth and shiny, without punctures or microsculpture, posterior area of katepimeron with some shallow large punctures, dorsal half with some deep punctures; metepisternum dull, with minute and dense punctures; metepimeron less shiny, depressed area with some punctures and weak microsculpture, interspaces broader than diameter of a puncture, without metepimeronal appendage (Figure 1e ). Abdominal tergum 1 shiny, laterally abdominal tergum 1 with some shallow punctures, nearly smooth submedially, basal 1/3 of abdominal tergum 1 punctured and 2/3 smooth; other abdominal terga less shiny, anterior 2/3 with some shallow punctures and weak microsculpture, posterior 1/3 smooth, abdomen in lateral view as shown in Figure 1h . Outer surface of hind coxa with somewhat dense and coarse punctures, outer surface of hind femur with sparse shallow punctures and fine microsculpture. Surface of ovipositor sheath coriaceous, with indistinct punctures and fine microsculpture.

Labrum elevated medially, anterior margin slightly truncate; clypeus roundishly elevated, base clearly broader than distance between lower corners of eyes, lateral sides distinctly convergent apically, anterior margin shallowly incised to approximately 1/4 of its length, lateral corners somewhat short and broad, margins of lobe obtuse (Figure 1d ); malar space linear, approximately 0.5 × as broad as diameter of middle ocellus; frontal area and face clearly depressed, lower than top of upper margin of compound eye in lateral view; middle fovea weak, pot-shaped, lateral foveae clear, furrow-like; interocellar furrow shallow, postocellar furrow weak; POL: OOL: OOCL = 31: 56: 43; postocellar area weakly elevated, approximately 1.5 × broader than long; lateral furrow somewhat broad and shallow, divergent posteriorly; head narrowed behind eyes in dorsal view, occipital carina complete. Antenna slender (Figure 1f ), approximately 1.64 × length of head and thorax together (11.5: 7), approximately 1.15 × length of abdomen (11.5: 10); antennomere 2 approximately 1.3 × as long as breadth; antennomere 3 approximately 1.25 × length of antennomere 4 (25: 20), approximately 0.7 × length of antennomeres 4 and 5 together (25: 35), middle antennomeres weakly inflated, subapical antennomeres weakly compressed, ratio of antennomeres 6: 7: 8: 9 as 11: 11: 10: 9. Mesoscutellum elevated, bottom of it with peak, weak median ridge or carina, higher than top of mesonotum in lateral view; mesoscutellar appendage with middle longitudinal carina; metascutellum with short and low carina; posterodorsal platform of mesepimeron as broad as diameter of middle ocellus; metepimeronal appendage with a small platform-shaped area; distance between cenchri 2.5 × breadth of a cenchrus; mesopleuron and metapleuron as shown in Figure 1e . Inner tibial spur of hind leg 0.6 × length of metabasitarsus (26: 43); metabasitarsus slender, approximately 1.3 × length of following four tarsomeres together (43: 34); claw with inner tooth slightly longer and clearly broader than outer tooth, hind tarsus as shown in Figure 1i . Ovipositor sheath shorter than metabasitarsus (35: 43), apical sheath as long as basal sheath, setae on ovipositor sheath curved and long in dorsal view, apical margin roundish in lateral view (Figure 1g ). Fore wing with cross-vein cu-a joining cell 1M in basal 1/3 , cross-vein 2r joining cell 2Rs in apical 1/4, cell 2Rs clearly longer than cell 1R1, petiole of anal cell slightly shorter than cross-vein 1r-m; petiole of anal cell in hind wing 1/4 length of cross-vein cu-a. Lancet narrow and long, with 20 serrulae (Figure 1j ), slightly oblique and sub-triangularly protruding, middle serrulae with 1 proximal and 3-6 distal teeth, subbasal teeth distinct and small, annular spine bands somewhat narrow, annuli 2 × breadth of annular spine, the 7th-9th serrulae as shown in Figure 1k .

Male. Unknown.

Host plants.

Unknown.

Distribution.

China (Zhejiang).

Etymology.

The specific name " lishuii " is derived from Lishui City belonging to Zhejiang Province where the holotype specimen was collected.

Figures

Figure 1. Macrophya lishuii sp. nov., ♀, holotype. a. Female adult, dorsal view; b. Female adult, lateral view; c. Head of female, dorsal view; d. Head of female, frontal view; e. Mesopleuron and metapleuron of female; f. Antenna of female, lateral view; g. Ovipositor sheath, lateral view; h. Abdomen, lateral view; i. Hind tarsus and claw of female, lateral view; j. Lancet; k. The 7 th- 9 th serrulae. Scale bars: 2 mm (a); 200 µm (j); 50 µm (k).