Nomia (Gnathonomia) pieli Cockerell, 1931

Zhang, Dan, Niu, Ze-Qing, Orr, Michael C., Ascher, John S. & Zhu, Chao-Dong, 2020, Chinese species of Nomia (Gnathonomia) Pauly, 2005 (Hymenoptera: Apoidea Halictidae: Nomiinae), Zootaxa 4768 (1), pp. 76-94 : 89-93

publication ID	https://doi.org/ 10.11646/zootaxa.4768.1.5
publication LSID	urn:lsid:zoobank.org:pub:B5409282-6539-4486-8C7A-CF38FE15C955
DOI	https://doi.org/10.5281/zenodo.3795452
persistent identifier	https://treatment.plazi.org/id/E61F577E-8800-C25C-95EE-F93CC95FFEF1
treatment provided by	Plazi
scientific name	Nomia (Gnathonomia) pieli Cockerell, 1931
status

Treatment

( Figs 10–12 View FIGURE 10 View FIGURE 11 View FIGURE 12 )

Nomia pieli Cockerell, 1931a: 9 , ♀. Holotype: ♀, China: Kiangsu (Jiangsu), AMNH.

Diagnosis. Both sexes of this species can be distinguished from other species of subgenus Gnathonomia by T3–4 with stronger basal hair bands and apical margin of T2–4 with translucent bands ( Figs 10e View FIGURE 10 , 12e View FIGURE 12 ). Male. Hind femur weakly developed ( Fig. 10d View FIGURE 10 ); upper lateral surface of propodeum with fine, dense, nearly confluent punctures, without narrow shiny interspaces ( Fig. 10f View FIGURE 10 ); T3–4 with basal hair bands ( Fig. 10e View FIGURE 10 ).

Description. Male (newly described). BL= 8–11 mm, body blackish-brown ( Fig. 10b View FIGURE 10 ). Head. HL: HW=0.81, head broader than long ( Fig. 10a View FIGURE 10 ); GW: EW= 0.71, eye much broader than gena ( Fig. 10a View FIGURE 10 ); upper interocular distance narrower than lower interocular distance; interocellar distance greater than ocellocular distance ( Fig. 10a View FIGURE 10 ); mandible enlarged, blackish-brown, upper margin with one tooth medially ( Fig. 10a View FIGURE 10 ); frons with dense punctures and smooth frontal line medially ( Fig. 10a View FIGURE 10 ); vertex with sparse punctures, bigger than punctures on frons; vertex with rounded posterior margin ( Fig. 10c View FIGURE 10 ); antenna reaching scutellum ( Fig. 10b View FIGURE 10 ); scape nearly equal to F1–3 together in length ( Fig. 10a, 10c View FIGURE 10 ); F1 nearly as long as broad ( Fig. 10a View FIGURE 10 ); F2 nearly 2.2–2.4 times as long as F1 ( Fig. 10a View FIGURE 10 ); F2–10 almost equal in length, nearly 2.2–2.3 times as long as broad; F11 rounded apically ( Fig. 10b View FIGURE 10 ); ocelli normal, not enlarged ( Fig. 10a View FIGURE 10 ). Mesosoma. Mesoscutum, scutellum and metanotum dull, with fine dense punctures ( Fig. 10c, 10f View FIGURE 10 ); upper lateral surface of propodeum with fine dense, nearly confluent punctures ( Fig. 10f View FIGURE 10 ); metapost- notum with narrow longitudinal wrinkles; inclined part of metapostnotum narrowly triangular and dull ( Fig. 10f View FIGURE 10 ); fore wing with three submarginal cells, 1 st submarginal cell almost equal to 3 rd submarginal cell in length, about twice as long as 2 nd submarginal cell ( Fig. 10b View FIGURE 10 ); legs blackish-brown; hind femur slightly developed ( Fig. 10d View FIGURE 10 ); hind tibia normal ( Fig. 10d View FIGURE 10 ). Metasoma. Metasomal terga dull, with dense minute punctures; apical margin of T2–5 with transparent bands and with white hairs beneath ( Fig. 10e View FIGURE 10 ); S5 round apically, apical margin with two hair brushes medially ( Fig. 11c View FIGURE 11 ); S6 deeply thickened apically ( Fig. 11b View FIGURE 11 ); S7 as showing in Fig. 11e; S View FIGURE 11 8 View FIGURE 8 as showing in Fig. 11f View FIGURE 11 ; upper margin of gonostylus rounded, as showing in Fig. 11a View FIGURE 11 (in ventral view) and Fig. 11b View FIGURE 11 (in lateral view). Pubescence. Clypeus, supraclypeal area and frons with dense short yellowish hairs ( Fig. 10a View FIGURE 10 ); mesoscutum, scutellum and metanotum with short yellowish hairs ( Fig. 10c View FIGURE 10 ); upper lateral surface of propodeum with long yellowish hairs ( Fig. 10f View FIGURE 10 ); legs with sparse short hairs ( Fig. 10b, 10d View FIGURE 10 ); metasomal terga with sparse yellowish hairs ( Fig. 10d, 10f View FIGURE 10 ). S3–4 with long yellowish hairs medially ( Fig. 10g View FIGURE 10 ).

Female. BL= 10–11 mm. Similar to male, except follows: clypeus, supraclypeal area and frons with sparse hairs ( Fig. 12a View FIGURE 12 ); mandible and legs normal, not modified ( Fig. 12a View FIGURE 12 ); apical margin of S3–5 with hair bands ( Fig. 12f View FIGURE 12 ). Material examined. China: Shanghai: 26 ♀, 20 ♂, Shanghai (31°06′09″N, 121°07′14″E), 4m, 26.VI.1933, 16.VII.1930, 29.VI.1933, 26.VI.1925, 20.VI.1939, leg. O. Piel; 20 ♂, same locality, 22.VI.1933, leg. A. Savio; Zhejiang: 3 ♂, Jiangshan (28°55′40″N, 118°17′05″E), 816m, 15.VI.1932, leg. T. C. Maa. Distribution. China (Jiangsu, Shanghai, Zhejiang), thus seemingly endemic to eastern China. Floral association. Unknown. Remarks. Male is described for the first time here. This species was described from the female only by Cockerell (1931a) in a paper on many new bee species from China collected by Rev. Octave Piel. We examined the

specimens deposited in IZCAS, including male and female, with matching collection information. The male of this species is very similar to N. radiata ( Pauly, 2009) , and Pauly said the female of that species is difficult to distinguish from the female of N. pieli . As we did not examine specimens of N. radiata ( Pauly, 2009) , future integrative taxonomic studies are needed to assess the status of those two species.