Homalictus nabanensis, Niu, Ze-Qing, Oremek, Pia & Zhu, Chao-Dong, 2013

Niu, Ze-Qing, Oremek, Pia & Zhu, Chao-Dong, 2013, First record of the bee genus Homalictus Cockerell for China with description of a new species (Hymenoptera: Halictidae: Halictini), Zootaxa 3746 (2), pp. 393-400 : 394-399

publication ID	https://doi.org/ 10.11646/zootaxa.3746.2.9
publication LSID	lsid:zoobank.org:pub:A0E533F2-955B-48C2-AFE9-487935534187
DOI	https://doi.org/10.5281/zenodo.6147360
persistent identifier	https://treatment.plazi.org/id/4D02F10B-FF9F-500B-FF38-BD826B41FA34
treatment provided by	Plazi
scientific name	Homalictus nabanensis
status	sp. nov.

Treatment

Homalictus View in CoL (H.) nabanensis sp.n.

( Figs 1 View FIGURE 1 a–f, 2a–h, female; 3a–h, 4a–d, male)

Diagnosis. Homalictus nabanensis sp.n. belongs to Homalictus s. str. by its carinate propodeum. It is ended to H. behri (Cockerell, 1910) following the key of Walker (1986), but it can be distinguished from H. behri by the following combination of characters: Body with metallic greenish reflexions, propodeum, metasoma and legs black, tarsi yellowish brown in female, tarsi and tibias yellowish brown in males; female scutum superficially reticulate, not distinctly punctuate ( Fig 2 View FIGURE 2 b); dorsal surface of propodeum with strong rugae reaching rim of propodeum ( Fig 2 View FIGURE 2 c); disc of S2–S5 with brown hairs; and male genitalia with uniquely shaped penis valve.

Description. Female, flagellum 10–segmented, metasoma with five segments exposed, prepygidial fimbria separated by a longitudinal median specialized area of T5 ( Fig 2 View FIGURE 2 h). BL=5.0–5.5mm (holotype: 5.5mm) ( Fig 1 View FIGURE 1 a); first recurrent vein meets second submarginal crossvein, second recurrent vein enters third marginal cell ( Fig 1 View FIGURE 1 b); fore basitarsal comb fan shaped ( Fig 1 View FIGURE 1 d); hind basitibal plate complete and angulate apically ( Fig 1 View FIGURE 1 e); hind inner tibial spur with three teeth ( Fig 1 View FIGURE 1 f); outer undersurface of hind tibia concave ( Fig 2 View FIGURE 2 f); head broader than long, HW: HL = 47: 38, UOD: MOD: LOD: IOD: OOD = 22: 35: 25: 7: 7 ( Fig 2 View FIGURE 2 d); antenna geniculate; clypeus slightly convex, broader than long, width as nearly three times as its length, supraclypeal area obviously convex, antennal sockets separated by distance equal to diameter of socket ( Fig 2 View FIGURE 2 a), gena slightly narrower than eye, GW: EW = 9: 11; malar area absent; metasoma broader than that between tegulae, MtW: TW =56: 51. Frons and paraocular area with vertical striate, clypeus and supraclypeal area finely reticulate, no punctuate ( Fig 2 View FIGURE 2 a); scutum reticulate ( Fig 2 View FIGURE 2 b), without distinct punctuations; dorsal surface of propodeum sparsely reticulate, with strong rugae reaching rim of propodeum ( Fig 2 View FIGURE 2 c); metasomal terga no punctuate, shiny and transversely fine lineolate ( Fig 2 View FIGURE 2 d). Clypeus brassy with metallic reflection, supraclypeal area greenish blue with metallic reflection ( Fig 2 View FIGURE 2 a); scutum greenish blue intermixed with brassy metallic reflection ( Fig 2 View FIGURE 2 b); antennal flagellum ventrally dark blackish brown; distal 2/ 3 part of mandible reddish brown, basal 1/3 part black; tarsi yellowish brown, other parts of all legs black; frons, paraocular area, pronotum, scutellum, metanotum, propodeum and metasomal terga black. Clypeus, paraocular area, vertex, and scutum with yellowish white plumose hairs; gena, pronotal lobe and posterior surface of propodeum with white long plumose hairs; disc of T2–T3 with brown short simple hairs; ventrolateral parts of T1– T3 with numerous large yellowish brown plumose hair branches ( Fig 2 View FIGURE 2 e); plumose hair series of S2–S5 brown ( Fig 2 View FIGURE 2 g).

Male, flagellum 11-segmented, metasoma with seven segments exposed. BL=4.7–5.0mm ( Fig 3 View FIGURE 3 a); head broader than long, HW: HL = 44: 35, UOD: MOD: LOD: IOD: OOD = 25: 29: 20: 6: 6 ( Fig 3 View FIGURE 3 b); antenna geniculate; gena slightly narrower than eye, GW: EW = 8: 10; malar area absent; clypeus slightly convex, broader than long, width as nearly three times as its length, supraclypeal area convex, antennal sockets separated by distance equal to diameter of socket ( Fig 3 View FIGURE 3 b); metasoma slightly narrower than that between tegulae, MtW: TW =50: 55; wing venation of fore wing as same as that of female, first recurrent vein meets second submarginal crossvein, second recurrent vein enters third marginal cell ( Fig 3 View FIGURE 3 d); fore basitarsal comb fan shaped ( Fig 3 View FIGURE 3 e); hind basitibal plate complete and angulate apically ( Fig 3 View FIGURE 3 f); hind inner tibial spur with three teeth, hind tibia normal, without concave on outer undersurface ( Fig 3 View FIGURE 3 g). Frons and paraocular area with vertical striate, clypeus and supraclypeal area finely reticulate, no punctuate ( Fig 3 View FIGURE 3 b); scutum finely reticulate, sparsely punctate ( Fig 3 View FIGURE 3 h); dorsal surface of propodeum sparsely reticulate, median with a few longitudinal strong rugae reaching rim of propodeum ( Fig 4 View FIGURE 4 a); metasomal terga no punctuate, shiny and transversely fine lineolate ( Fig 4 View FIGURE 4 b); gonobase slightly narrower than gonocoxite ( Fig 4 View FIGURE 4 c), penis valve long, tapering sharp apically and bending ventrally ( Fig 4 View FIGURE 4 d). Clypeus, supraclypeal area, and scutum greenish blue; pronotum, scutellum, metanotum, propodeum and metasomal terga black; antennal flagellum ventrally dark blackish brown; apical 1/3 part of mandible reddish black, middle part yellowish brown, basal part black; tibiae and tarsi yellowish brown, other parts of all legs black. Clypeus covered with denser yellowish white plumose hairs; gena and scutum with sparse white plumose hairs; disc of S2–S5 with sparse yellowish brown branched hairs.

Type material. Holotype, 1♀, China, Yunnan, Xishuangbanna, NRWNNR (100°32′E 22º04′N), 17.VIII.2012, coll. Pia Oremek; Paratypes: 3♀, China, Yunnan, Xishuangbanna, NRWNNR (100°32′E 22º04′N), 6.VIII.2012, coll. Pia Oremek; 1♀, China, Yunnan, Xishuangbanna, NRWNNR (100°32′E 22º04′N), 15.VIII.2012, coll. Pia Oremek; 3♀, China, Yunnan, Xishuangbanna, NRWNNR, Naban (100°67′E 22º16′N), 709m, 16.III.2009, coll. Ling-Ceng Meng; 1♀, China, Yunnan, Xishuangbanna, NRWNNR, Mandian (100°69′E 22º13′N), 753m, 16.III.2009, coll. Ling-Ceng Meng; 1♀, China, Yunnan, Xishuangbanna, NRWNNR, Naban (100°67′E 22º16′N), 729m, 16.VI.2009, coll. Ling-Ceng Meng; 1♀, China, Yunnan, Xishuangbanna, NRWNNR, Mandian (100°67′E 22º13′N), 753m, 16.VI.2009, coll. Ling-Ceng Meng; 4♀, China, Yunnan, Xishuangbanna, NRWNNR, Naban (100°66′E 22º16′N), 732m, 15.VI.2008, coll. A. Weigel; 3♀, China, Yunnan, Xishuangbanna, NRWNNR, Naban (100°67′E 22º16′N), 709m, 14.VII.2007, coll. A. Weigel; 1♀, China, Yunnan, Xishuangbanna, NRWNNR, Naban (100°66′E 22º16′N), 732m, 14.VII.2007, coll. A. Weigel; Allotypes: 1♂, China, Yunnan, Xishuangbanna, NRWNNR, Naban (100°67′E 22º16′N), 729m, 16.V.2009, coll. Ling-Ceng Meng; 1♂, China, Yunnan, Xishuangbanna, NRWNNR, Mandian (100°67′E 22º13′N), 689m, 6.VI.2008, coll. A. Weigel.

Distribution. China (Yunnan) and presumably Thailand (Chiang Mai), see above.

Etymology. The type location Naban ( China, Yunnan) is used to name the species.