Revision of the bee genus Bathanthidium Mavromoustakis (Hymenoptera: Apoidea Megachilidae: Anthidiini) with description of a new species from China Author Niu, Ze-Qing Author Ascher, John S. Author Griswold, Terry Author Zhu, Chao-Dong text Zootaxa 2019 2019-06-16 4657 1 97 116 journal article 25993 10.11646/zootaxa.4657.1.3 c38b0fde-57c4-46ba-b8cb-2022a08f397f 1175-5326 3370975 3C53B0BB-0C30-49D7-A6AD-4F969FDF816B Key to the known species of Bathanthidium (Females of B. bicolor , B. monganshanense , males of B. fengkaiense , B. hainanense , B. emeiense unknown, not be included in the key) 1 Flagellum 10-segmented, female......................................................................... 2 - Flagellum 11-segmented, male.......................................................................... 11 2 Fovea behind propodeal spiracle rounded, delimited by strong carina....................... 3 B . ( Bathanthidium s. str. ) - Fovea behind propodeal spiracle elongate, weakly delimited................................................... 5 3 Paraocular area with thin and long yellow marking extending along the inner margin to the top of the eye......................................................................... B. ( Bathanthidium s. str. ) bifoveolatum ( Alfken, 1937 ) - Paraocular area near ventral extreme with a small sub-triangle or sub-rectangle dull yellow marking................... 4 4 T1–T2 black, without yellow marking, T3–T5 with broader yellow bands, the band on T3 obviously interrupted medially; paraocular area yellow marking sub-rectangle; the lowest tooth on mandible acute......................................................................................... B . ( Bathanthidium s. str ) fengkaiense Niu & Zhu , sp. nov. - T1 black, T2 medially with a pair of small, stripe-like yellow markings, T3–T5 with broader yellow bands, the bands on T3–T5 entire, not interrupted medially; the lowest tooth on mandible slightly rounded........................................................................................... B. ( Bathanthidium s. str ) hainanense Niu, Wu & Zhu, 2012 5 Basal zone of propodeum not distinct, with irregular, sculptured, sloping pits laterally................. 6 B . ( Manthidium ) - Basal zone of propodeum distinct laterally, with regular, shiny, nearly horizontal pits...............8 B . ( Stenanthidiellum ) 6 T6 yellow or with yellow fasciae basally; paraocular area black or with thin and long yellow marking.................. 7 - T6 black; paraocular area near ventral extreme with dull yellow marking or black.................................................................................................... B . ( Manthidium ) atriceps ( Morawitz, 1890 ) 7 T6 with yellow fasciae basally; paraocular area with thin and long yellow marking extending along the inner margin nearly to the top of the eye..................................................... B. ( Manthidium ) barkamense ( Wu, 1986 ) - T6 yellow; paraocular area black, without yellow marking..................... B . ( Manthidium ) binghami ( Friese, 1901 ) 8 Scutellum with two broad yellow markings apically.......................... B. ( Stenanthidiellum ) emeiense Wu, 2004 - Scutellum black...................................................................................... 9 9 Metasomal terga dull, not shiny; mandible with four teeth.................. B . ( Stenanthidiellum ) malaisei ( Popov, 1941 ) - Metasomal terga shiny; mandible with two or three teeth..................................................... 10 10 Mandible with two teeth; paraocular area near ventral extreme with small yellow marking....................................................................................... B . ( Stenanthidiellum ) sibiricum ( Eversmann, 1852 ) - Mandible with three teeth, 3 rd tooth more than 2x as far from dorsal tooth as from 2 nd tooth; paraocular area black, without yellow marking................................................... B. ( Stenanthidiellum ) rubopunctatum ( Wu, 1993 ) 11 Fovea behind propodeal spiracle rounded, delimited by strong carina; T7 trilobed, median lobe longest and broad, lateral lobe short and acute; paraocular area with thin and long yellow marking extending along the inner margin to the top of the eye............................................................ B. ( Bathanthidium s. str. ) bifoveolatum ( Alfken, 1937 ) - Fovea behind propodeal spiracle elongate, weakly delimited; T7 simple or with slightly produced median lobe (T7 of B . malaisei otherwise); paraocular area black or with different shape yellow marking.................................... 12 12 Basal zone of propodeum not distinct, with irregular, sculptured, sloping pits laterally................ 13 B . ( Manthidium ) - Basal zone of propodeum distinct laterally, with regular, shiny, nearly horizontal pits..............17 B . ( Stenanthidiellum ) 13 Paraocular area yellow marking thin and long, extending along the inner margin to the top or middle of the eye.......... 14 - Paraocular area yellow marking broad and short, only extending to the low margin of antennal socket................. 15 14 Mandible with two teeth; paraocular area yellow marking extending nearly to the top of the eye........................................................................................... B. ( Manthidium ) barkamense ( Wu, 1986 ) - Mandible with three teeth; paraocular area yellow marking extending to the middle of the eye................................................................................................ B. ( Manthidium ) bicolor ( Wu, 2004 ) 15 T6 with yellow marking medially........................................ B. ( Manthidium ) binghami ( Friese, 1901 ) - T6 black........................................................................................... 16 16 Clypeus and with shallow and sparse punctures; apicomedian margin of clypeus nearly straight......................................................................................... B. ( Manthidium ) atriceps ( Morawitz, 1890 ) - Clypeus with deep and dense punctures; apicomedian margin of clypeus strongly extend.............................................................................................. B. ( Manthidium ) moganshanense ( Wu, 2004 ) 17 Paraocular area yellow marking thin and long, extending along the inner margin to the top or middle of the eye; T7 trilobed, the median lobe long and broad, lateral lobe small and acute................... B. ( Stenanthidiellum ) malaisei ( Popov, 1941 ) - Paraocular area yellow marking broad and short, only extending to the low margin of antennal socket; T7 medially slightly produced or truncated................................................................................. 18 18 T7 medial projection triangular point with lateral shoulders.............. B . ( Stenanthidiellum ) rubopunctatum ( Wu, 1993 ) - T7 simple, truncated apically.................................... B . ( Stenanthidiellum ) sibiricum ( Eversmann, 1852 )