Bathanthidium (Bathanthidium) hainanense, Niu, Ze-Qing, Wu, Yan-Ru & Zhu, Chao-Dong, 2012

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, Zootaxa 3218, pp. 59-68 : 60-61

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

Figures

FIGURES 7 – 12. Bathanthidium (B.) hainanense sp. nov., female. 7, Fovea behind propodeal spiracle in frontal view, showing the shape of the fovea and the carina delimited the fovea; 8, Propodeal basal zone lateral pits in frontal view, showing the regular, shiny, nearly horizontal lateral pits; 9, Middle tibia, showing the tibial spine; 10, Distitarsus of front leg, showing the arolium; 11, Metasoma in lateral view, showing the scopa on S 2 - S 5; 12, Metasoma in dorsal view, showing the marks on T 2 - T 5.

FIGURES 21 – 28. Bathanthidium (B.) emeiense Wu, 2004, female, holotype. 21, Body in dorsal view; 22, Body in lateral view; 23, Head in frontal view, showing the paraocular area yellow marks; 24, Mandible, showing the teeth; 25, Fovea behind propodeal spiracle in frontal view, showing the shape of the fovea and the carina delimited the fovea; 26, Pronotal lobe in lateral view; 27, Mesoscutum and scutellum in dorsal view, showing punctures on mesoscutum and scutellum, and the opened scuto-scutellar fovea; 28, T 6 in dorsal view.

FIGURES 29 – 41. Bathanthidium (B.) bifoveolatum (Alfken, 1937). 29 – 35, female, 29, Body in dorsal view; 30, Body in lateral view; 31, Head in frontal view; 32, Mesoscutum and scutellum, showing the opened scuto-scutellar fovea; 33, Fovea behind propodeal spiracle in frontal view, showing the fovea and the carina delimited the fovea; 34, Mandible in frontal view, showing the teeth; 35, Mesosoma in lateral view, showing the pronotal lobe. 36 – 41, male, 36, Body in dorsal view; 37, Body in lateral view; 38, Head in frontal view; 39, Mandible and labrum in frontal view; 40, Mesoscutum and scutellum, showing the opened scuto-scutellar fovea; 41, Fovea behind propodeal spiracle in frontal view, showing the fovea and the carina delimited the fovea.

FIGURES 13 – 20. Bathanthidium (S.) circinatum Wu, 2004, female, holotype. 13, Body in dorsal view; 14, Body in lateral view; 15, Head in frontal view, showing the clypeal middle circle black mark; 16, Head in lateral view; 17, Mesoscutum and scutellum in dorsal view, showing punctures on mesoscutum and scutellum, and the opened scuto-scutellar fovea; 18, Fovea behind propodeal spiracle and basal zone of propodeum in frontal view, showing the lateral pits on propodeal basal zone, the shape of the fovea and the carina delimited the fovea; 19, Pronotal lobe in lateral view; 20, T 6 in dorsal view.

FIGURES 42 – 54. Bathanthidium (S.) sibiricum (Eversmann, 1852). 42 – 49, female, 42, Body in dorsal view; 43, Body in lateral view; 44, Head in frontal view, showing the paraocular area yellow marks; 45, Mesoscutum and scutellum, showing the opened scuto-scutellar fovea; 46, Clypeus in frontal view, showing the dentate margin of clypeus; 47, Basal zone of propodeum in frontal view, showing the lateral pits on propodeal basal zone; 48, Fovea behind propodeal spiracle in frontal view, showing the fovea and the carina delimited the fovea; 49, Metasoma terga in dorsal view, showing the yellow marks on T 1 - T 4. 50 – 54, male, 50, Body in dorsal view; 51, Body in lateral view; 52, Head in frontal view; 53, Mesoscutum and scutellum, showing the opened scuto-scutellar fovea; 54, Fovea behind propodeal spiracle in frontal view, showing the fovea and the carina delimited the fovea.

FIGURES 1 – 6. Bathanthidium (B.) hainanense sp. nov., female. 1, Body in dorsal view; 2, Head in frontal view, showing the mark at the ventral of paraocular area; 3, Head in lateral view, showing the width of gena and eye; 4, Mesosoma in dorsal view, showing punctures on mesoscutum and scutellum, and the opened scuto-scutellar fovea; 5, Mandible in frontal view, showing the teeth; 6, Fore wing in dorsal view, showing the character of the forewing.