Sericocampsomeris punctata Liu & Chen, 2022

Chen, Hua-Yan, Liu, Zhen, Wang, Zheng, Yang, Sheng-Jie & Luo, Shi-Xiao, 2022, Review of the genus Sericocampsomeris Betrem, 1941 (Hymenoptera, Scoliidae) from China, Deutsche Entomologische Zeitschrift 69 (2), pp. 125-138 : 125

Sericocampsomeris punctata Liu & Chen sp. nov.

Figs 5C, D , 6A-H

Material examined.

Holotype, male, China: Hainan, Wanning, Xinglong Tropical Botanical Garden , 18°43'52"N, 110°11'30"E, 8.IV-8.V.2020, Malaise trap, Zheng Wang, En-418590 (deposited in SCBG) . Paratypes: 2 males, same data as holotype, but 3.III-8.IV.2020 (HUAS). One male, same data as holotype, but 8.V-8.VI.2020, SCAU3043663 (SCBG) ; 1 male, China: Hainan, Wanning, Xinglong , 18°43'56.87"N, 110°11'40.47"E, 31.III-14.IV.2020, Malaise trap, Chun-Yang Xu, En-418593 (SCBG) ; 1 male, China: Hainan, Wanning, Xinglong , 18°43'54.22"N, 110°11'33.62"E, 15-30.V.2020, Malaise trap, Chun-Yang Xu, En-418592 (SCBG) ; 2 males. Same data as holotype, but 3.III-8.IV.2020 (HUAS) .

Diagnosis.

According to Gupta and Jonathan (1989), this new species can be classified into group III (including S. stygia and S. flavomaculata ), with integument black, T1-T4 with yellow bands and vestiture predominantly white. The new species can be easily separated from S. stygia (distributed in Bhutan, India, Indonesia, Malaysia and Myanmar) by the black clypeus, pronotum, scutellum, metanotum and legs (all of which are more or less yellow in S. stygia ). The new species also resembles S. flavomaculata , but can be distinguished from that species by the following differences: scapula without yellow macula (with yellow macula in S. flavomaculata ); yellow bands on T1-T4 excavated medially, not interrupted, T5 without yellow macula (T1-T5 with wide yellow bands which are narrowly to widely interrupted medially in S. flavomaculata ); punctures on mesosoma denser, nearly touching each other dorsomedially (sparser, intervals between punctures approximately equal to the width of 2-3 punctures in S. flavomaculata ); vein 2r-m on fore-wing distinctly angled medially (slightly arched in S. flavomaculata ); setae denser and longer on 2nd submarginal cell (sparser and shorter in S. flavomaculata ).

Description.

Male (holotype). Body length 28.2 mm, fore-wing length 21.3 mm.

Head. Distinctly wider than high in frontal view (1.4 ×), transverse in dorsal view, 1.1 × wider than mesoscutum (between tegulae). Vertex between eye and posterior ocellus shiny and polished medially, except with sparse punctures posteriorly. Temple obscured by dense pubescence. Clypeus somewhat shiny, largely impunctate medially and basally, with coarse, dense, hairy punctures elsewhere, intervals between punctures smaller than width of a single puncture. Frontal spatium with small punctures, intervals between punctures equal to or less than the width of one puncture. Frontal fissura distinct with obvious cross-furrow. Frons sparsely punctate with intervals between punctures approximately the width of one to three punctures. Ocelli relatively large, posterior tangent line of anterior ocellus not touching posterior ocelli, distance between fore- and hind ocellus slightly shorter than diameter of hind ocellus, POL:OD:OOL = 1.8:1.0:1.1. Antenna slightly shorter than head and mesosoma combined, penultimate antennomere 1.8 × longer than wide.

Mesosoma. Length:width:height = 7.7:5.8:5.7. Disc of mesonotum slightly shiny, with independent punctures (intervals between punctures usually smaller than width of one puncture), without medial impunctate area. Tegula narrowly polished apically, with sparse punctures anteriorly. Scutellum less shiny with finer punctures, except with a small impunctate area dorsomedially. Metanotum with coarser punctures, intervals between punctures usually smaller than width of one puncture. Propodeum densely punctate on dorso-median area, posterior declivity and dorso-lateral area, intervals between punctures smaller than width of one puncture. Pronotal callosity coarsely punctate anteriorly, impunctate posteriorly; scapula finely evenly punctate. Mesopleuron densely punctate anteriorly, intervals between punctures equal to the width of one puncture, gradually sparser to impunctate medio-posteriorly. Upper plate of metapleuron largely polished, except irregularly punctate above, lower plate covered with obscure shallow punctures hidden in thick setae. Lateral panel of propodeum covered with same punctures hidden in thick setae as dorso-median area; lateral carina far from spiracle level; hairy without distinct punctures on spiracular angle.

Legs. Hind femur 3.1 × longer than wide. Hind coxa shiny, largely polished, except with independent punctures laterally, intervals between punctures approximately equal to the width of one to two punctures. Inner spur of hind tibia 1/4 length of hind basitarsus, outer spur 2/5. Basitarsus of hind leg 0.9 × length of tarsomeres 2-4 combined, claws moderately developed.

Wings. Surface of fore-wing setose, densely so in all cells, except submedian cell, second discoidal cell and hind part of third discoidal cell nearly bare. Fore-wing with two submarginal cells and two recurrent veins. Marginal cell small, with marginal vein basally forming an acute angle with the costal. Vein 2r-m distinctly angled medially. 1st:2nd:3rd: 4th cubital vein = 1.0:1.7:1.0:1.3.

Metasoma. 2.4 × longer than mesosoma. T1 with irregular punctures, becoming liner-like, becoming smaller and shallower apicad, area behind gradulus polished with whitish fringe, T4 0.8 × length of T3. T2 and following tergites with minute punctures to nearly polished anteriorly and posteriorly, with coarser and denser punctures elsewhere.

Colour & vestiture. Body black, except T1-T4 and S1-S4 with yellow bands which are distinctly excavated medially. Wings dark brown, distinctly darker anteriorly and apically. Vestiture white, except apex of T5 and following tergites with black setae and setae on distal of hind tibia and each tarsal segment.

Male genitalia. Paramere robust, 2.9 × longer than wide, apically tapered, hairs thin and yellow. Base of volsella covered with sparse pubescence. Squama polished in dorsal view.

Variation. Body length 26.5-28.5 mm, fore wing length 19.0-21.8 mm.

Female. Unknown.

Etymology.

The specific name " Sericocampsomeris punctata " derives from the Latin, referring to the propodeum densely punctate on dorso-median area.

Biology.

Based on the examination of the pollen grains attached on the mouthparts of a specimen (En-418593, Fig. 7 ), this species is most likely a pollinator of Elaeocarpus sp. ( Elaeocarpaceae).

Distribution.

China (Hainan).

Figures

Figure 5. Male genitalia. A, B. Sericocampsomeris flavomaculata Gupta & Jonathan, 1989 (SCAU 3043664); C, D. Sericocampsomeris punctata Liu & Chen, sp. nov. (En- 418590); E, F. Sericocampsomeris rubromaculata (Smith, 1855). (A, C, E dorsal view B, D, F ventral view).

Figure 6. Sericocampsomeris punctata Liu & Chen, sp. nov., holotype, male (En- 418590). A. Lateral habitus; B. Head, anterior view; C. Head, dorsal view; D. Head and mesosoma, dorsal view; E. Head and mesosoma, lateral view; F. Wings; G. Propodeum and T 1, dorsal view; H. Metasoma, dorsal view.

Figure 7. A. Sericocampsomeris punctata Liu & Chen, sp. nov., paratype, male (En- 418593), mouthpart with pollens; B. Pollen grain of Elaeocarpus sp. (Elaeocarpaceae).