Revision of the Andrena wollastoni group (Hymenoptera, Anthophila, Andrenidae) from the Madeira Archipelago and the Canary Islands: upgrading of three former subspecies and a description of three new subspecies Author Kratochwil, Anselm Author I, Canary text Linzer biologische Beiträge 2020 2020-07-31 52 1 161 244 journal article 10.5281/zenodo.5273217 0253-116X 5273217 Andrena lineolata WARNCKE , 1968 H o l o t y p e: 1♀ Tenerife, El Portillo, 18.06.1933 , collector unknown. P a r a t y p e s: 1♂ Tenerife , Monte de las Mercedes , 02.03.1952 , leg. Fernandez ; 1♀ Tenerife , La Laguna , 07.05.1928 , collector unknown ; 6♀♀ , 11♂♂ Tenerife , Las Cañadas , 17.05.1960 , leg. Lundblad ; 1♀ , 1♂ Tenerife , Teide , Las Cañadas , 20.05.1947 , leg. Lindberg ; 1♂ Tenerife , Izaña , 04.06.1922 , leg. Cabrera ; 1♀ Tenerife Las Cañadas , 16.06.1903 , collector unknown ; 1♀ Tenerife , El Portillo , 18.06.1933 , collector unknown ; 2♀♀ , 1♂ Tenerife , Cumbre Roque de Caramuyo , 20.- 21.06.1923 , 2202 m, collector unknown ; 1♀ Tenerife , El Portillo , 02.07.1933 , collector unknown . S t a t u s: WARNCKE (1968) described A. lineolata as endemic to Tenerife on the basis of 30 specimens ( 1♀ holotype ; 14♀♀ , 15♂♂ paratypes ). Besides the holotype , 8♀♀ and 6♂♂ of paratypes are deposited in the OLML (see also BLANK & KRAUS 1994). The type specimens in the OLML are all provided with a determination label from Warncke and were analysed in the frame of this study. ( holotype : female, El Portillo, 18.06.1933 , collector unknown). One paratype of A. lineolata ( 1♂ Tenerife, Las Cañadas, May 1960 , leg. Lundblad) is deposited in the MNCN ( 1♂ of the same serie, also a paratype , is deposited in the OLML). Three females and one male (all paratypes , with the label Tenerife, Teyde, Cañadas, 20.05.1947 , collected by Lindberg) are deposited in the ZMUH and characterised by the labels ‘Mus. Zool H: Fors, Spec. typ. No 5525, 5526, 5532, 5533’. Remarkably, only one female is mentioned in the description of WARNCKE (1968) . The whereabouts of 10 type specimens ( 2♀♀ , 8♂♂ ) could not be clarified. F o r m e r d e s c r i p t i o n s: WARNCKE (1993) compared the morphological features of A. lineolata to those of A. wollastoni (translated from German) as follows: F e m a l e: hairy gray-white pubescence, only slightly denser and longer hairs than in A. wollastoni ; tergites 2-4 with open white and narrow hair bands; clypeus clearly bulging, somewhat snout-shaped, slightly coarser and more densely punctured, puncture distance 1-1.5 of the puncture diameter; labrum triangular; thorax in A. wollastoni fine scattered and hardly recognizable punctured; strongly grainy shagreened; in A. lineolata similar, but denser (1-2 puncture of the diameter distance) and deeper punctured, therefore punctures clearly visible; fine-grained and shagreened but weaker in microsculpture, therefore weakly shiny; scutellum more strongly punctured and not shagreened in the centre, therefore shiny; propodeum rugose at the base, distal part almost grainy without rugulae; sculpture of the abdomen similar to A. wollastoni , mesosoma seems broader than in A. wollastoni . M a l e: with lighter hairs, even the head only next to the antenna base with some interspersed black hairs, otherwise lightly haired; thorax puncture also denser and deeper, scutellum shiny, genitals very similar to A. wollastoni . D i a g n o s t i c q u a l i t a t i v e f e a t u r e s: Inadditiontothemorphological characteristics that are typical for the taxa of the A. wollastoni group, A. lineolata is characterised by the following specific features: F e m a l e: Colour. Head: flagellum dorsal dark brown, ventral light brown (78%) or dorsal black, ventral brown (22%) ( Figs. 18a, c, d ). Mesosoma: femur, tibia, and basitarsus brown ( Fig. 18a ); mediotarsi yellowish-reddish; wings light brownish toned ( Fig. 18a ), veins yellowish-reddish brown; pterostigma yellowish, brown marginated ( Fig. 18a ). Metasoma: T1-4 black with reddish-brown depression zone ( Fig. 18a ); T5 depression zone reddish-brown. Pubescence.Head: clypeus and supraclypeal area with white but not dense hairs; paraocular area with white hairs, no brownish hairs between the subantennal socket and the facial fovea ( Fig. 18d ); scapus and antennal socket with dorsal longer white-yellowish hairs and ventral shorter white-yellowish hairs ( Fig. 18c ); genal area with white hairs; facial fovea with white hairs; vertex behind the the ocelli with some long white-yellowish hairs ( Fig. 18c ). Mesosoma: mesoscutum and scutellum with white-yellowish hairs, laterally in the front with longer hairs; mesepisternum with white hairs; propodeal corbicula with some white hairs and with some hairs in the centre; trochanteral and femoral flocculus with white hairs; tibial scopa dorsally and ventrally with white hairs, dorsobasally slightly reddish, distally with white hairs ( Fig. 19d ). Metasoma: tergites scarcely hairy, T2 and T3 (T4) with lateral white, fragmentary open hair bands (dense rows of hairs) ( Fig. 18a ); T4 with row of hairs between tergite and tergite depression; T5 laterally with yellowish-white hairs, in the centre with yellowish (yellowish-reddish) hairs ( Fig. 18a ); T6: brown hairs. Fig. 18: Type specimen (holotype, female) of Andrena lineolata WARNCKE, 1968 (OLML Nr. 6952456; ZOBODAT, 05.02.2020; biogeographical data set). ( a ) habitus, dorsal view. ( b ) type label. ( c ) head, frontal view. ( d ) head, dorsal view. Structure. Head: clypeus strong convex with impunctate line ( Fig. 19a ), more or less shagreened ( Fig. 19a ), slightly dull, deeper punctured (PD: 14-28 μm, PDI: 28 μm) ( Fig. 19a ), labrum process triangular (50%) ( Fig. 19a ) or triangular-trapezoidal (50%), slightly rounded on the top, laterally more or less oblique. Mesosoma: deeper and denser punctured, especially in the front (PD: 14 μm) ( Fig. 19b ); propodeum rugose ( Fig. 19c ). Metasoma: tergites rough hammertone-like shagreened and shiny; shallow and very scattered but not clearly punctured (PD: 14 μm), T1 very slight stepped depression zone, T2-T4 with deeper depression zones ( Fig. 18a ). M a l e: similar to female with following differences: Colour. Head: distal half of the mandible not or partly reddened ( Fig. 21b ); flagellum brown ( Figs. 20c, d ). Mesosoma: wings light toned ( Fig. 20f ); pterostigma yellowish in the centre, brown marginated. Fig. 19: Type specimen (holotype, female) of Andrena lineolata WARNCKE, 1968 (OLML Nr. 6952456; ZOBODAT, 05.02.2020; biogeographical data set). ( a ) clypeus. ( b ) mesonotum. ( c ) propodeum. ( d ) scopa. Pubescence. Head: clypeus with white hairs but no dark hairs ( Fig. 21b ); genal area with long white hairs ( Fig. 21b ). Mesosoma: mesoscutum and mesepisternum with white hairs ( Fig. 20d ). Metasoma: base of T1 with some white-yellowish hairs, scarcely hairy in the centre, T2-T4 depression zones with laterally white strong fragmented hair bands (dense rows of hairs) ( Fig. 20f ); T5 with some yellowish hairs; T6 with yellowish and partly reddish hairs in the centre and laterally with yellowish-white hairs ( Fig. 20f ); ST 8: with long white (yellowish) hairs at the end. Structure. Head: vertex above the ocelli narrow, as wide as half of the ocellar diameter ( Fig. 20e ); clypeus larger, deeper, and denser punctured (PD = 14-32 μm); labrum process trapezoidal, emarginated (82%) ( Fig. 21b ), slightly emarginated (15%), ends left and right side (slightly) thickened ( Fig. 21b ). Mesosoma: deeper and denser punctured (PD = 14-28 μm); Metasoma: T1 slightly carinate, tergites very shallow and very scattered but not clearly punctured (PD = 14 μm). D i s t r i b u t i o n: The main distribution of this endemic species is concentrated in the area Las Cañadas/Teide at altitudes of about 2000 m a.s.l to 3300 m a.s.l. (observations of LARA- ROMERO et al. 2019 about 3300 m a.s.l.). In the literature, some specimens were also detected in the Anaga area at lower altitudes ( 500-1000 m a.s.l., data from 1928 and 1952); HOHMANN et al. (1993) . It was not possible to to prove whether there was any confusion with A. a. acuta . Despite intensive screening in March and May, we did not find any individual of A. lineolata in the Anaga area. Fig. 20: Type specimen (paratype, male) of Andrena lineolata WARNCKE, 1968 (OLML Nr. 6952455; ZOBODAT, 05.02.2020; biogeographical data set). ( a ) habitus dorsal. ( b ) type label. ( c ) head frontal. ( d ) mesosoma. ( e ) head dorsal. ( f ) metasoma. F l i g h t p e r i o d: According to HOHMANN et al. (1993) , LARA- ROMERO (2019) and own data the flight period is from April to July. S p e c i m e n s e x a m i n e d: 3♀♀ Tenerife, Caramujo, 2200 m , 28.05.1983 , leg. Hohmann (ID-No UMBB210, UMBB214, UMBB215); 1♀ Tenerife, Izaña, 2200 m , 29.06.1982 , leg. Hohmann (ID-No UMBB211); 5♀♀ Tenerife, Caramujo, 2200 m , 26.06.1983 , leg. Hohmann (ID- No UMBB212, UMBB213, UMBB216-UMBB218); 2♀♀ Tenerife, Las Cañadas, 2400 m , 20.04.1991 , leg. Heiss (ID-No OLML151, OLML152); 2♀♀ Tenerife, El Portillo, 1900 m , 15.04.1992 , leg. Kratochwil (ID-No KR-CAN60, KR-CAN61); 7♀♀ Tenerife, Izaña, 2292 m , 28°18'8.97"N , 16°30'51.93"W , 20.05.2019 , leg. Kratochwil (ID-No KR-CAN1-KR-CAN5, KR- CAN24, KR-CAN25); 7♀♀ Tenerife, Caramujo, 2216 m , 28°18'24.5''N , 016°32'09.6''W , 21.05.2019 , leg. Kratochwil (ID-No KR-CAN29-KR-CAN33, KR-CAN36, KR-CAN37); 1♀ Tenerife, Las Cañadas del Teide, near Restaurant Teide, 2132 m , 28°17'44.9''N , 016°33'56.4''W , 22.05.2019 , leg. Kratochwil (ID-No KR-CAN48); 7♀♀ Las Cañadas, Montaña Rajada, 2298 m , 28°15'57.4''N , 016°35'18.3''W , 22.05.2019 , leg. Kratochwil (ID-no KR-CAN49-KR-CAN55); 3♀♀ Tenerife, Caramujo, 2200 m , 28.05.1983 , leg. Hohmann (ID-No UMBB245-UMBB247); 20♂♂ Tenerife, Izaña, 2200 m , 22.05.1983 , leg. Hohmann (ID-No UMBB219-UMBB238); 7♂♂ Tenerife, El Portillo, 1900 m , 22.05.1983 , leg. Hohmann (ID-No UMBB239-UMBB244, UMBB248); 2♂♂ Tenerife, Las Cañadas, 2400 m , 20.04.1991 , leg. Heiss (ID-No OLML152b, OLML153); 1♂ Tenerife, Las Cañadas, Parador, 2150 m , 19.04.1989 , leg. Schwarz (ID-No OLML154); 3♂♂ Tenerife, El Portillo, 2000 m , 15.04.1992 , leg. Kratochwil (ID-No KR-CAN58, KR-CAN59, KR-CAN62); 3♂♂ Tenerife, El Portillo, 1900 m , 15.04.1992 , leg. Kratochwil (ID-No KR-CAN58, KR-CAN59, KR-CAN62); 9♂♂ Tenerife, Izaña, 2292 m , 28°18'8.97"N , 16°30'51.93"W , 20.05.2019 , leg. Kratochwil (ID-No KR-CAN6-KR-CAN10, KR-CAN13-KR- CAN15, KR-CAN23); 4♂♂ Tenerife, Caramujo, 2216 m , 28°18'24.5''N , 016°32'09.6''W , 21.05.2019 , leg. Kratochwil (ID-No KR-CAN26-KR-CAN28, KR-CAN35); 1♂ Tenerife, Las Cañadas del Teide, near Restaurant Teide, 2132 m , 28°17'44.9''N , 016°33'56.4''W , 22.05.2019 , leg. Kratochwil (ID-No KR-CAN47).