Andrena (Micrandrena) extenuata, Wood & Monfared, 2022

Wood, Thomas J. & Monfared, Alireza, 2022, A revision of the Andrena (Hymenoptera: Andrenidae) fauna of Iran, with the description of 16 new species, European Journal of Taxonomy 843, pp. 1-136 : 21-25

Andrena (Micrandrena) extenuata sp. nov.

urn:lsid:zoobank.org:act:536BF1F3-74B7-49E7-9CCF-325F9359B54E

Figs 45–53

Diagnosis

Andrena extenuata sp. nov. can be placed in the subgenus Micrandrena because of its small body size ( Fig. 45 ), black integument, black male clypeus ( Fig. 50 ), and strongly rugose propodeal triangle( Fig. 47 ). The propodeal triangle is long and finely rugose, and the facial foveae are very narrow throughout their entire length, which is consistent with the Andrena fumida species group (former subgenus Fumandrena Warncke, 1975 which now falls within a broad Micrandrena concept, Pisanty et al. 2022b). Within the fumida -group and Micrandrena with consistently narrow foveae, A. extenuata is closest to A. protuber Pisanty, 2022 in the female sex because of the protruding clypeus which is centrally weakly punctate and shiny. However, the foveae of A. extenuata are noticeably narrower below, clearly narrower than the width of a flagellum ( Fig. 46 ), linear and without a medial constriction (subequal to width of flagellum, with clear medial constriction), the scutellum is mirror-smooth (scutellum shagreened), and the terga are less densely punctate ( Fig. 48 ) (with clear and moderately dense punctures).

In the male sex, A. extenuata sp. nov. can be instantly recognised by its genital capsule, which is narrow with elongated penis valves and gonostyli ( Fig. 53 ). Andrena protuber has a more compact and typical ‘ Micrandrena ’ genital capsule (see illustrations in Pisanty et al. 2022a); that of A. extenuata is more similar to that of A. sandanskia Warncke, 1973 (elongate, but with gonostyli that broaden apically) or A. djelfensis Pérez, 1895 (gonostyli narrow and pointed, but with strongly developed gonocoxal teeth and gonostyli medially angled, Fig. 54 ).

Etymology

From the Latin adjective ‘ extenuatus ’, meaning ‘thinned, reduced, diminished’ and referring to the narrow and pointed genital capsule.

Material examined

Holotype IRAN • ♂; Yasouj, Doposhteh, Dasht-e Rum ; 30.589° N, 51.517° W; 2091 m a.s.l.; 10 Apr. 2021; E. Rostami leg.; OÖLM.

Paratypes IRAN • 3 ♀♀; Yasouj, Deli Bajak, Sepidar ; 2181 m a.s.l.; 23 Apr. 2021; E. Rostami leg.; ICPI • 1 ♀; Yasouj, Doposhteh, Dasht-e Rum ; 2091 m a.s.l.; 6 Apr. 2021; E. Rostami leg.; ICPI • 3 ♀♀; Yasouj, Doposhteh, Dasht-e Rum ; 2091 m a.s.l.; 10 Apr. 2021; E. Rostami leg.; ICPI • 2 ♀♀; same collection data as for preceding; OÖLM • 50 ♂♂, 5 ♀♀; Yazd, Banadak-o sadat ; 2103 m a.s.l.; 22 Mar. 2021; S. San leg.; ICPI • 5 ♂♂, 2 ♀♀; same collection data as for preceding; OÖLM • 3 ♂♂, 2 ♀♀; same collection data as for preceding; TJWC • 3 ♂♂, 1 ♀; Yazd, Ghadam gah, Dehbala ; 2175 m a.s.l.; 12 Mar. 2020; S. San leg.; ICPI • 1 ♀; Yazd, Hanza, Hosseinie ; 1837 m a.s.l.; 6 Mar. 2020; S. San leg.; ICPI • 8 ♂♂; Yazd, Jade konj-e kooh , dakal; 2019 m a.s.l.; 26 Mar. 2021; S. San leg.; ICPI • 7 ♂♂, 1 ♀; Yazd, Khezr abad Ebteday Zorband ; 1817 m a.s.l.; 9 Mar. 2020; S. San leg.; ICPI • 1 ♂, 2 ♀♀; Yazd, Khezr abad Zorband ; 1844 m a.s.l.; 21 Mar. 2021; S. San leg.; ICPI • 3 ♂♂; Yazd, Khorashe, Mazre Tadayon ; 1808 m a.s.l.; 13 Mar. 2020; S. San leg.; ICPI • 3 ♂♂, 1 ♀; Yazd, Mehriz, Hosseiniyeh, Shohaday gomnam; 1500 m a.s.l.; 28 Feb. 2020; S. San leg.; ICPI • 1 ♂; Yazd, Polis-e rah taft; 1399 m a.s.l.; 12 Mar. 2020; S. San leg.; ICPI • 1 ♂, 2 ♀♀; Yazd, Sakhvid, Mazraeh Khosraw ; 2469 m a.s.l.; 27 Mar. 2019; S. San leg.; ICPI • 2 ♂♂; Yazd, Sanij khaleghieh; 2060 m a.s.l.; 13 Mar. 2020; S. San leg.; ICPI • 1 ♂; same collection data as for preceding; OÖLM • 1 ♂, 9 ♀♀; Yazd, Shahneh village, Zorband ; 1890 m a.s.l.; 23 Mar. 2019; S. San leg.; ICPI • 4 ♀♀; Yazd, Taft , dare gahan; 1877 m a.s.l.; 21 Mar. 2021; S. San leg.; ICPI • 3 ♀♀; Yazd, Taft, Tezerjan, Hanza ; 1949 m a.s.l.; 24 Mar. 2019; S. San leg.; ICPI • 3 ♂♂, 16 ♀♀; Yazd, Taft, Tezerjan, Hosseinabad ; 2100 m a.s.l.; 22 Mar. 2019; S. San leg.; ICPI • 2 ♂♂; Yazd, Taft, Tezerjan, Mazraeh Ali , Agha Seyyed ; 2109 m a.s.l.; 24 Mar. 2019; S. San leg.; ICPI • 1 ♂; same collection data as for preceding; OÖLM • 6 ♂♂; Yazd, Tezerjan Bagh-e Agha Seyyed ; 2226 m a.s.l.; 12 Mar. 2020; S. San leg.; ICPI • 5 ♂♂, 16 ♀♀; Yazd, Tezerjan, Hossein Abad Seyyed Mahmood ; 1993 m a.s.l.; 5 Mar. 2020; S. San leg.; ICPI • 5 ♂♂, 2 ♀♀; Yazd, Tezerjan, Seyyed Mahmood , 1993 m a.s.l.; 6 Mar. 2020; S. San leg.; ICPI .

SYRIA • 14 ♂♂, 1 ♀; Bludan [Bloudan], 57 km NW of Damascus; 2000 m a.s.l.; 24 Apr. 1992; K. Warncke leg.; OÖLM • 9 ♀♀; Burg Baniyas / Mt. Hermon ; 1500 m a.s.l.; 13 Apr. 1992; K. Warncke leg.; OÖLM • 1 ♀; Maalula [Maaloula], 60 km NE of Damascus; 1400 m a.s.l.; 14 Apr. 1992; K. Warncke leg.; OÖLM .

Description

Female

MEASUREMENTS. Body length 6.5–7 mm ( Fig. 45 ).

HEAD. 1.1 times as wide as long. Clypeus dark, domed, irregularly punctate with large punctures, punctures laterally separated by 0.5 puncture diameter, becoming sparser centrally, here separated by up to 4 puncture diameters; clypeus centrally with broad longitudinal impunctate line ( Fig. 46 ). Clypeus integument narrowly shagreened laterally, smooth and shiny over majority of area. Process of labrum quadrate, essentially parallel-sided, as long as broad, corners slightly rounded. Face, gena, vertex, and scape with long whitish hairs, longest not exceeding length of scape. Integument of paraocular area and frons with weak metallic green lustre, frons with weak longitudinal striations, with large, scattered punctures between individual rugae. Gena exceeding width of compound eye; ocelloccipital distance half diameter of lateral ocellus. Foveae extremely narrow, dorsally occupying 1/5 distance between compound eye and lateral ocellus, half width of flagellum, very slightly narrowed below at midpoint, otherwise essentially equally narrow throughout, extending slightly below level of antennal insertions. Antennae dark, A7–12 slightly lightened brownish-red below; A3 subequal to A4+5.

MESOSOMA. Scutum with fine and even microreticulation, weakly shining, surface irregularly punctate with moderately sized punctures, punctures separated by 1–4 puncture diameters. Scutellum strongly contrasting, narrowly shagreened laterally, remaining surface smooth and shining with small, isolated punctures. Pronotum without humeral angle. Mesepisternum and lateral face of propodeum with fine microreticulation, dull to weakly shining. Dorsal face of propodeum long, equalling length of scutellum plus metanotum; propodeal triangle occupying majority of surface, delineated laterally with fine carinae, internal surface covered by network of fine raised rugae ( Fig. 47 ), remaining surface of dorsal face of propodeum microreticulate, dull. Mesepisternum, scutum, and scutellum with long whitish hairs, longest not exceeding length of scape; propodeal corbiculae thin, composed of sparse whitish plumose hairs, internal surface with numerous simple white hairs. Legs dark, apical tarsal segments slightly lightened dark brown, pubescence white, scopae and flocculus white. Hind tarsal claws with inner tooth. Wings hyaline, stigma orange, venation dark brown basally to orange apically, nervulus antefurcal, first recurrent vein enters second submarginal cell slightly before its middle.

METASOMA. Terga dark, apical margins of T2–4 slightly depressed, apically narrowly lightened yellow ( Fig. 48 ). Terga finely microreticulate, weakly shining, microreticulation narrowly disappearing laterally on raised areas immediately above depressed margins, these areas shining. Terga essentially impunctate, with scattered and obscure hair-bearing points disappearing into microreticulation; T2–4 with weak, medially interrupted whitish apical hair bands. Apical fringe of T5 and hairs flanking pygidial plate whitish-golden; pygidial plate triangular, with truncate apex, with raised longitudinal ridge centrally.

Male

MEASUREMENTS. Body length 5.5–6 mm ( Fig. 49 ).

HEAD. 1.3 times as wide as long. Clypeus dark, weakly domed, with large shallow punctures, punctures separated by 0.5–1 puncture diameter except basally where a faint impunctate longitudinal line is visible ( Fig. 50 ). Clypeus integument basally and centrally heavily microreticulate, becoming weaker apically, here slightly shining. Process of labrum tongue-shaped, slightly longer than broad, lateral margins weakly converging apically, apical margin straight. Face, gena, vertex, and scape with long black to brown hairs, longest subequal to length of scape. Gena slightly exceeding width of compound eye; ocelloccipital distance less than half diameter of lateral ocellus. Antennae dark, A5–13 slightly lightened greyish-brown below due to presence of tiny cilia; A3 exceeding A4, shorter than A4+5, A4 sub-square.

MESOSOMA. Scutum microreticulate, dull, surface with obscure shallow punctures; scutellum with weaker microreticulation, slightly greenish-metallic, punctures larger and more clearly visible. Structurally otherwise as in female.

METASOMA. Terga dark, apical margins of T2–4 slightly depressed, more extensively lightened hyalineyellow than in female ( Fig. 51 ). Terga evenly microreticulate, weakly shining, presence of reduced shagreenation apicolaterally less pronounced than in female. Terga with scattered fine golden hairs, without hairbands or lateral fringes. S8 columnar, slightly narrowed medially, with brown hairs laterally ( Fig. 52 ). Genital capsule long, gonocoxa with very weakly pronounced gonocoxal teeth, gonostyli curved inwards apically, remaining essentially of same width throughout, apically slightly flattened, integument slightly brighter; penis valves long triangular, apically sharply pointed ( Fig. 53 ).

Distribution

Syria (Anti-Lebanon mountain range) and southern and central Iran, from Yasouj to Yazd.

Remarks

Collected from flowers of Acer monspessulanum L. ( Sapindaceae ), Pyrus glabra Boiss. (Rosaceae) , and Prunus (Amygdalus) spp. ( Rosaceae ) from late February to April. It thus seems to be associated with flowering trees in the early spring.

Figures

Figs 45–48. Andrena extenuata sp. nov., ♀ (OÖLM). 45. Profile. 46. Face. 47. Propodeum. 48. Terga.

Figs 49–54. 49–53. Andrena extenuata sp. nov., ♂ (OÖLM). 49. Profile. 50. Face.51. Terga.52. Sternum 8. 53. Genitalia. – 54. Andrena djelfensis Pérez, 1895, ♂ (OÖLM), genitalia.