Bathanthidium Niu, Wu & Zhu, 2012, sp. nov.
Creators: name: Niu, Ze-Qing
name: Wu, Yan-Ru
name: Zhu, Chao-Dong
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Bathanthidium

description: Key to the species of Bathanthidium
(Males of B. (B.) hainanense, sp. nov., B. (B.) emeiense, and B. (S.) circinatum unknown.)
1. Fovea behind propodeal spiracle rounded, delimited by a strong carina (Fig.7, 25, 33, 41); T7 of male trilobed, with median lobe longest; basal zone of propodeum not distinct, without row of pits except laterally (Fig.8); T6 of male simple (oriental)................................................................................. 3 B. (Bathanthidium s.str.)
-. Fovea behind propodeal spiracle elongate, weakly delimited (Fig.18, 48, 54); T7 of male simple or with slightly produced median lobe; basal zone of propodeum and pits variable; T6 of male with elevated median section or surface convex...... 2
2. Basal zone of propodeum distinct laterally, with regular, shiny, nearly horizontal pits (Fig.18, 47); T6 of male with surface convex (eastern palearctic)............................................................... 8 B. (Stenanthidiellum)
-. Basal zone of propodeum not distinct, with irregular, sculptured, sloping pits laterally; T6 of male with elevated median section and concave lateral sections (oriental) (INDIA: Assam; BURMA: Tenasserim; MALAYSIA)...................................................................................................... B. (Manthidium) binghami
3. Flagellum 11-segmented, male........................................................................... 4
-. Flagellum 10-segmented, female......................................................................... 5
4. Clypeus, mesoscutum without yellow marks; paraocular area with dull red marks; T2-T5 with broken yellow bands; T6 black (CHINA: Fujian, Gansu)..................................................................... B. (B.) atriceps
-. Clypeus (Fig.38), mesoscutum (Fig.40) with yellow marks; paraocular area with roughly triangular yellow marks (Fig.38); T1- T2 with lateral marks (Fig.36); T3-T5 with entire yellow bands (Fig.37); T6 brown (CHINA: Zhejiang, Anhui, Fujian, Hubei, Hunan, Guangxi, Yunnan, Taiwan)......................................................... B. (B.) bifoveolatum
5. Clypeus black, without lateral yellow marks (Fig.2, 23); paraocular area with little yellow mark (Fig.2, 23).............. 6
-. Clypeus with lateral yellow marks (Fig.31); paraocular area with large striate-like yellow margin, reaching to apex of eye (Fig.31) (CHINA: Zhejiang, Anhui, Fujian, Hubei, Hunan, Guangxi, Yunnan, Taiwan)................ B. (B.) bifoveolatum
6. Scutellum with two broad yellow marks apically (Fig.27); T1-T3 with lateral yellow marks (Fig.21); T4-T5 with broken yel- low bands (sometimes bands not broken) (Fig.21) (CHINA: Sichuan)................................ B. (B.) emeiense
-. Scutellum without yellow mark apically (Fig.4); T1 without lateral yellow marks (Fig.12); T2-T5 yellow bands variable... 7
7. Mandible 3 teeth; third flagellum slightly longer than second one; T2-T5 with lateral oval yellow marks, not entire yellow bands (CHINA: Fujian, Gansu)................................................................ B. (B.) atriceps
-. Mandible 4 teeth; third flagellum as long as second one (Fig. 2); T2 with pair of small, median, stripe-like yellow marks (Fig.12), T3-T5 with broader entire yellow bands (Fig.12) (CHINA: Hainan)................. B. (B.) hainanense, sp. nov.
8. Flagellum 11-segmented, male........................................................................... 9
-. Flagellum 10-segmented, female........................................................................ 10
9. T7 without teeth; gonostylus only with a small notch at the proximal end (CHINA: Beijing, Heilongjiang, Jilin, Neimenggu, Hebei, Zhejiang, Sichuan; RUSSIA: eastern Siberia)............................................. B. (S.) sibiricum
-. T7 with teeth; gonostylus with a deep notch at the proximal end (SOUTH KOREA)..................... B. (S.) malaisei
10. Clypeus yellow, middle with circle black mark (Fig.15).......................................... B. (S.) circinatum
-. Clypeus black, middle without circle black mark (Fig.44).................................................... 11
11. Metasoma terga shiny; mandible 2 teeth (CHINA: Beijing, Heilongjiang, Jilin, Neimenggu, Hebei, Zhejiang, Sichuan; RUS- SIA: eastern Siberia)...................................................................... B. (S.) sibiricum
-. Metasoma terga dull, not shiny; mandible 4 teeth (SOUTH KOREA)................................. B. (S.) malaisei
description: Published as part of Niu, Ze-Qing, Wu, Yan-Ru & Zhu, Chao-Dong, 2012, A new species of Bathanthidium Mavromoustakis (Hymenoptera: Megachilidae: Anthidiini) from China, with a key to the species, pp. 59-68 in Zootaxa 3218 on pages 60-61, DOI: 10.5281/zenodo.280216