Paraleptomenes setaceus Bai, Chen & Li, 2022

Bai, Yue, Carpenter, James M., Chen, Bin & Li, Ting-Jing, 2022, A review of the genus Paraleptomenes Giordani Soika, 1970 (Hymenoptera, Vespidae, Eumeninae) from China, with descriptions of two new species, Journal of Hymenoptera Research 90, pp. 185-199 : 185

Paraleptomenes setaceus Bai, Chen & Li sp. nov.

Figs 1-10

Material examined.

Holotype, 1♀, China, Yunnan Province, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences , 21°55'2"N, 101°16'25.99"E, 584 m, 2015.iv.11, Chunhong Wang (CNU) ; Paratype, 1♂, China, Yunnan Province, Dai Autonomous Prefecture of Xishuangbanna, Mengla County, Shangyong Town , Moxie Village , 21°20'16.8"N, 101°41'16.8"E, 679 m, 2017.viii.6, Tingjing Li (CNU) .

Description.

Female (Fig. 1 ). Body length 6.3 mm, forewing length 5.7 mm; black, with the following parts orange-yellow: base of mandible, two lateral complete bands along margins of clypeus, longitudinal interantennal spot, scape ventrally, a small spot of ocular sinus, a line behind eye at gena, an anterior interrupted band of pronotum, tegula (except brownish red at middle), parategula, metanotum, apices of fore and mid femora, fore and mid tibiae (slightly dark ventrally) and tarsi (slightly dark apically), apex of hind tibia, hind tarsus, apical bands of T1-T2, and S2 (broader on T2); wings transparent brown, fore wing with an apical dark spot.

Head. Clypeus (Fig. 3 ) about 1.0 times as wide as long, flat in the middle part, indistinctly with lateral longitudinal raised carina from middle to apex, with extremely fine sparse punctures, and punctures at apex larger and deeper, or even longitudinally striate, apical margin somewhat emarginated, clypeal width about 3.1 times its apical width; distance between inner eye margins at vertex about 1.2 times of the distance between inner eye margins at clypeus; interantennal space slightly raised; frons and vertex with dense punctures, punctures sparser than P. darugiriensis (Fig. 3 ); posterior area of hind ocelli with a row of short longitudinal carina along occipital carina in the middle area, occipital carina dorsally not sinuate as P. darugiriensis (Fig. 5 ); distance between posterior ocellus about equal to the distance from posterior ocellus to inner eye margin; punctures of gena sparser than vertex.

Mesosoma. Pronotum coarsely, densely punctate and reticulate, except the middle area, anterior face without obviously depressed fovea in the middle, with dense punctures and somewhat reticulate on both sides, pronotal transverse carina weak, especially absent in the middle (Fig. 5 ); mesoscutum with dense punctures, interspaces reticulate, with two longitudinal furrows of punctures on apical margin (Fig. 7 ); scutellum convex in lateral view (Fig. 10 ), with dense punctures, interspaces reticulate; metanotum weakly convex, sloping down to apical margin, with dense punctures, and apical margin leathery; mesopleuron posterodorsally with obviously raised blunt teeth (Figs 9 , 10 ), punctures mostly similar to pronotum, posteroventrally with fine sparser punctures; metapleuron smooth, sparsely punctate, punctures smaller than other parts of mesosoma; propodeum dorsally with large and deep flat-bottomed punctures, interspaces carinate and reticulate, the boundary between dorsal and posterior surfaces not obvious, punctures on lateral surface dense, interspaces carinate and reticulate, shallower than other parts of mesosoma except metapleuron; posterior surface obviously depressed, margin with dense and shallow punctures, and medially smooth and without punctures, with short oblique striae along median carina on both sides, median carina about 0.8 times of the length of whole propodeum.

Metasoma. Leathery, punctures smaller than head and mesosoma; T1 about 1.9 times as wide as long, narrower than T2, punctures on anterior inclined surface sparse, punctures on dorsal surface dense, without punctures at the end, slightly concave near the end (Figs 1-2 ); T2 about 1.2 times as wide as long, with sparse punctures at base and then punctures gradually denser and larger near the apical margin, and with thin apical lamella; S2 with sparse punctures in the middle, those laterally and apically denser, larger than the base of T2, and with thin apical lamella; T3-T5 with dense punctures; metasomal segment 6 almost without punctures.

Male (Fig. 2 ). Body length 5.8 mm, forewing length 5.5 mm. Sculpture, punctuation, setae, and coloration as in female except as follows: clypeus (Fig. 4 ) yellow except outer margin, with thick white setae, clypeus about 1.2 times as wide as long, apical margin medially deeply emarginate, transparent, laterally forming a sharp tooth, clypeal width about 3.4 times as wide as that of emargination, emargination about 2.7 times as wide as long; distance between inner eye margins at vertex about 1.6 times of the distance between inner eye margins at clypeus; A13 about 1.6 times as long as basal width, small, slender, finger-like and edge almost straight, backward not reaching the base of A11 (Fig. 6 ); punctures of frons sparser (Fig. 4 ); front of mid and hind coxae yellow; metasomal segment 6 with fine sparse punctures; S7 with fine punctures and basally with a row of thick brown setae (Fig. 8 ).

Distribution.

China (Yunnan).

Remarks.

This species resembles P. transfoveolus sp. nov. with the character of mesopleuron posterodorsally with obviously raised blunt teeth (Figs 9 , 18 ), and resembles P. communis with the character of male A13 small, slender, finger-like and almost straight, narrowed at the apex (Fig. 6 ). It differs from the related species and all other members of the genus by the following character combination: female clypeus with indistinct lateral longitudinal raised carina from middle to apex (Fig. 3 ), anterior face of pronotum in female without obviously depressed foveae in the middle (Fig. 5 ); A13 of the male small, slender, finger-like and lateral edge almost straight, backward reaching near the base of A11 (Fig. 6 ), punctures of frons sparser (Figs 3-4 ), mesopleuron posterodorsally with obviously raised blunt teeth (Fig. 9 ) and S7 basally with a row of thick brown setae (Fig. 8 ).

Etymology.

The specific name setaceus is derived from Latin word: setace (= with hair), referring to the base of S7 with a row of thick brown setae.

Figures

Figures 1 - 10. Paraleptomenes setaceus sp. nov. Holotype (♀): 1, 3, 5, 7, 9, 10 paratype (♂): 2, 4, 6, 8. 1, 2 habitus (dorsal view) 3, 4 head (frontal view) 5 vertex and part of pronotum (dorsal view) 6 A 6 - A 13 7 mesosoma (dorsal view) 8 metasoma (ventral view) 9 tegula (dorsal view) 10 mesosoma (lateral view).

Figures 11 - 19. Paraleptomenes transfoveolus sp. nov. Holotype (♀) 11, 13, 15, 16, 18, 19 paratype (♂) 12, 14, 17. 11, 12 habitus (dorsal view) 13, 14 head (frontal view) 15 mesosoma (dorsal view) 16 vertex and part of pronotum (dorsal view) 17 A 5 - A 13 18 tegula (dorsal view) 19 mesosoma (lateral view).