Redivivoides variabilis

Kuhlmann, Michael, 2012, Revision of the South African endemic bee genus Redivivoides Michener, 1981 (Hymenoptera: Apoidea: Melittidae), European Journal of Taxonomy 34, pp. 1-34: 24-29

publication ID

http://dx.doi.org/10.5852/ejt.2012.34

publication LSID

lsid:zoobank.org:pub:B4F3BFEB-60AE-4F15-BB1D-41B3E7BEC299

persistent identifier

http://treatment.plazi.org/id/8353A5DA-3526-4FDC-A7EF-E31070DB45EF

taxon LSID

lsid:zoobank.org:act:8353A5DA-3526-4FDC-A7EF-E31070DB45EF

treatment provided by

Plazi

scientific name

Redivivoides variabilis
status

sp. nov.

Redivivoides variabilis  sp. nov.

Figs 15View Fig, 16View Fig, 17View Fig

urn:lsid:zoobank.org:act:8353A5DA-3526-4FDC-A7EF-E31070DB45EF

Diagnosis

Females and males of R. variabilis  can be separated from other Redivivoides  species by their black to brown metasomal terga which are smooth and shiny between punctures and that lack white apical hair bands ( Figs 15View Fig E-F, 16E). This is the only Redivivoides  species where terga have an intense oily bluish shine.

Etymology

The species is named after the colour variation of the females.

Type material (31 specimens)

Holotype

♀, 17 Aug. 1999, K. Steiner / Host Plant: Melolobium obcordatum  / SAM-HYM-B009467 ( SAMC). SOUTH AFRICA: N.C. Prov., Grootvlei , 3017BB, 17°50’E, 30°10’S.GoogleMaps 

Paratypes

SOUTH AFRICA: 1 ♀, 1 ♂ same date as holotype ( SAMC)  ; 1 ♀, 1 ♂, Springbok [29°40’ S, 17°52’ E], 7 Sep. 1966, C.D. Michener ( SAMC)GoogleMaps  ; 3 ♀♀, Namaqualand, Springbok, Goegap Nature Res. (hills) [29°41’ S, 17°59’ E], 8-10 Sep. 1992, F.W. & S.K. Gess, on yellow fls. of Lebeckia spinescens Harv.  ( Papilionaceae  ), 92/93/41, ( AMGS)GoogleMaps  ; 2 ♀♀, Dassiefontein Farm, 14 km E Kammieskroon (sic) [30°09’ S, 17°59’ E], 16-17 Sep. 2001, C. Eardley ( SANC)GoogleMaps  ; 1 ♀, Skilpad, 3017BB [30°10’ S, 17°50’ E], 19 Aug. 1999, K. Steiner, Nemesia anisocarpa  ( SAMC)GoogleMaps  ; 1 ♀, Kamieskroon, Dassiefontein , 3017BB [30°10’ S, 17°50’ E], 7 Sep. 1986, K. Steiner, Lotononis  ( SAMC)GoogleMaps  ; 1 ♀, Farm Grootvlei, 3017BB [30°10’ S, 17°50’ E], 24 Aug. 1990, K. Steiner, Legume ( SAMC)GoogleMaps  ; 1 ♂, Grootvlei , 20 km S Kamieskroon [30°10’ S, 17°50’ E], 10 Aug. 1984, V.B. Whitehead, yellow legume ( SAMC)GoogleMaps  ; 2 ♀♀, 8 km E Karkams, 3017BD [30°20’ S, 17°50’ E], 10 Aug. 1985, V.B. Whitehead, Nemesia  & Lachenalia  ( SAMC)GoogleMaps  ; 1 ♀, 6.2 km NE of Karkams, 3017BD [30°20’ S, 17°50’ E], 4 Sep. 1986, K. Steiner, Nemesia  ( SAMC)GoogleMaps  ; 1 ♀, Garies, Welkom Farm , 3018CA [30°40’ S, 18°10’ E], 30 Sep. 1988, V.B. Whitehead, Lotononis serpens  ( SAMC)GoogleMaps  ; 1 ♀, N. Cape, Nieuwoudtville, Flower Reserve East [31°21’56” S, 19°08’52” E], 735 m, 10 Aug. 2004, M. Kuhlmann ( RCMK)GoogleMaps  ; 1 ♀ (black form), N. Cape, Nieuwoudtville, Flower Reserve East [31°21’56”S, 19°08’52” E], 735 m, 6 Sep. 2002, M. Kuhlmann ( RCMK)GoogleMaps  ; 1 ♀ (black form), 1 ♂, N. Cape, Nieuwoudtville, Flower Reserve East [31°21’56” S, 19°08’52” E], 735 m, 3 Sep. 2003, M. Kuhlmann, on Oxalis  spec. ( RCMK)GoogleMaps  ; 1 ♀, Nieuwoudtville, Farm Glenlyon , 3117AC [31°21’ S, 19°08’ E], 14 Aug. 1997, V.B. Whitehead, Lotononis serpens  ( SAMC)GoogleMaps  ; 1 ♂, Nieuwoudtville Flower Reserve [31°22’ S, 19°08’ E], 2 Aug. 1984, V.B. Whitehead, Lotononis serpens  ( SAMC)GoogleMaps  ; 2 ♀♀, W. Cape, 24 km N of Garies [30°23’ S, 17°54’ E], 777 m, 25 Sep. 2011, L. Packer ( LPCT, RCMK)GoogleMaps  ; 1 ♂, N. Cape, Nieuwoudtville, Glen Lyon , Renosterveld [31°24’03” S, 19°08’34” E], 700 m, 18 Aug. 2004, M. Kuhlmann ( RCMK)GoogleMaps  ; 1 ♀ (black form), Keiski Mts., 5 km S Farm Nooiensrivier , dolerite hill [31°45’54”S, 19°50’17” E], 1270 m, 29 Aug. 2010, M. Kuhlmann ( RCMK)GoogleMaps  ; 1 ♀ (black form), Keiski Mts., 5 km S Farm Nooiensrivier , dolerite hill [31°45’54” S, 19°50’17” E], 1270 m, 4 Sep. 2010, M. Kuhlmann ( RCMK)GoogleMaps  ; 1 ♀, Skaapdam, 11 km E Lamberts Bay [32°05’ S, 18°22’E], 9 Sep. 1987, V.B. Whitehead, Nemesia  ( SAMC)GoogleMaps  ; 1 ♀ (black form), Clanwilliam, Ramskop [32°10’ S, 18°53’ E], 21 Aug. 1984, V.B. Whitehead & M. Macpherson, Homeria minuta  ( SAMC)GoogleMaps  .

Description

Female

BODY LENGTH. 12.0-13.0 mm.

HEAD. Head slightly wider than long. Integument black except median part of mandible and sometimes labrum partly dark reddish-brown. Face sparsely covered with long, whitish-grey (in the dark form all black, Fig. 15BView Fig), erect hairs intermixed with black hairs along the inner eye margins and on vertex ( Fig. 15CView Fig). Clypeus mostly flat, apically almost impunctate, punctures here large and scattered becoming rapidly smaller and denser towards the upper edge; surface between punctures shiny ( Fig. 15CView Fig). Malar area medially narrow, almost linear. Antenna black, ventrally sometimes partly dark reddish-brown.

MESOSOMA. Integument black, tegulae partly yellowish-brown. Mesoscutal disc between punctures smooth and shiny; disc densely (i = 0.5-1.0 d) and finely punctate ( Fig. 15DView Fig). Mesoscutum, scutellum, metanotum, mesepisternum and propodeum covered with long yellowish-brown erect hairs, on the disc of mesoscutum and scutellum some black hairs intermixed (in the dark form all black, Fig. 15BView Fig).

WINGS. Yellowish-brown; wing venation brown.

LEGS. Integument black to yellowish-brown. Vestiture yellowish-brown, scopae yellowish-brown. In the dark form hairs of femora and most of tibiae black or dark brown, on tarsi yellowish-brown, scopae darker yellowish-brown ( Fig. 15BView Fig).

METASOMA. Integument black, except apical tergal margins partly narrowly brownish translucent; terga with intense oily bluish shine ( Fig. 15View Fig E-F). T1 apically sparsely covered with a few long erect yellowish hairs; T2 – T4 covered with short yellowish-white hairs; apical tergal hair band missing on T1, on T2 – T4 very sparse and only laterally developed ( Fig. 15View Fig A-E). In the dark form all hairs black, no apical tergal hair bands ( Fig. 15View Fig B-F). Prepygidial fimbria dorsally black, laterally partly yellowish white (in dark form all black), pygidial fimbria black. Terga densely but finely punctate, smooth and shiny between punctures ( Fig. 15View Fig E-F).

Male

BODY LENGTH. 12.0-13.0 mm.

HEAD. Head slightly wider than long. Integument black except tip of mandible partly dark reddish-brown. Face densely covered with long, whitish-grey to yellowish-brown, erect hairs intermixed with black hairs along the inner eye margins and on vertex. Malar area medially narrow, almost linear. Antenna black, ventrally dark reddish-brown.

MESOSOMA. Integument black, tegulae partly yellowish-brown. Mesoscutal disc between punctures smooth and shiny; disc densely (i = 0.5–1.0 d) and finely punctate ( Fig. 16BView Fig). Mesoscutum, scutellum, metanotum, mesepisternum and propodeum covered with long yellowish-brown erect hairs, on the disc of mesoscutum and scutellum some black hairs intermixed ( Fig. 16BView Fig).

WINGS. Yellowish-brown; wing venation brown.

LEGS. Integument black, tibiae and tarsi partly yellowish-brown. Vestiture yellowish-white.

METASOMA. Integument black, except apical tergal margins partly narrowly brownish translucent; T1 – T3 with intense oily bluish shine, T4 – T5 less so ( Fig. 16A, CView Fig). T1 completely and T2 on disc covered with long erect yellowish-white hairs; T2 – T3 densely covered with short erect yellowish-white either yellowish-white or black on T4 and black on T5 – T6; apical tergal hair band missing on T1, on T2 – T5 sparse and narrow, yellowish-white to white ( Fig. 16A, CView Fig). Terga densely but finely punctate, smooth and shiny between punctures ( Fig. 16CView Fig). T7 with pygidial plate that is reduced to a narrow longitudinal, slightly elevated and shiny ridge.

TERMINALIA. Genitalia ( Fig. 16View Fig G-H), S6 ( Fig. 16DView Fig), S7 ( Fig. 16EView Fig) and terminal plate of S8 ( Fig. 16FView Fig) as illustrated.

Distribution

The species has been found in most parts of Namaqualand to the northern parts of the Roggeveld Mountains in the southeast ( Fig. 17View Fig). The colour form with females all black is only known from the higher grounds of the south-eastern part of the species' range while the females with light brown pilosity mostly occur in lower areas and the north ( Fig. 17View Fig). Colour variation is also known from Rediviva gigas Whitehead & Steiner, 1993  and R. parva Whitehead & Steiner, 2001  . In R. gigas  there is no obvious geographical pattern of colour variation but the black form of R. parva  seems to be concentrated in the north and in lower lying areas in the west of its range ( Whitehead & Steiner 2001).

Floral hosts

Fabaceae  : Lebeckia spinescens  , Lotonotis hirsuta  (= serpens  ), Lotononis  spec., Melolobium obcordatum  ; Hyacinthaceae  : Lachenalia  spec.; Iridaceae  : Moraea miniata  ; Oxalidaceae  : Oxalis  spec.; Scrophulariaceae  : Nemesia anisocarpa  , Nemesia  spec.

Seasonal activity

August – September.

SAMC

Iziko Museums of Cape Town

AMGS

Albany Museum

SANC

Agricultural Research Council-Plant Protection Research Institute