Andrena (Micrandrena) subviridula Wood, 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 : 27-31

Andrena (Micrandrena) subviridula Wood sp. nov.

urn:lsid:zoobank.org:act:97FB1684-4A57-4511-ACE3-67A05460053A

Figs 61–69

Diagnosis

Andrena subviridula sp. nov. can be place in the subgenus Micrandrena because of its small body size ( Fig. 61 ), black integument, black male clypeus ( Fig. 66 ), and strongly rugose propodeal triangle. The propodeal triangle is long and finely rugose, and the facial foveae are very narrow throughout their entire length ( Fig. 62 ), which is consistent with the Andrena fumida -group. In the female sex, it differs from eastern members of this group in the densely microreticulate terga with bead-like punctures ( A. griseigena Warncke, 1975 , with terga almost impunctate, without raised microreticulation) and the weakly shagreened and shining scutum ( A. immaculata Warncke, 1975 and A. kopetica Osytshnjuk, 1993 with scutum uniformly dull). It is similar to A. elam sp. nov. because of the dense raised microreticulation of T1–2 ( Fig. 64 ), but the punctures of T4 are faint and sparse, separated by 3–4 puncture diameters (punctures strong, separated by 1–2 puncture diameters; compare Figs 44 and 64 ) and the scutum has weak granular shagreenation (shagreenation absent, smooth and shining).

In the male sex, A. subviridula has the long and dense ‘beard’ of hairs on the clypeus that project ventrally that is typical of the fumida group species ( Fig. 66 ), and closely resembles A. immaculata in general appearance. However, the genital capsule is different (lacking basally widened penis valves) and more closely resembles that of a A. tomora Warncke, 1975 and A. fabrella Pérez, 1903 ( Fig. 70 ). However, the gonocoxae are not produced into apical points, the gonostyli are apically wider, not parallel-sided, and the inner margin of the gonostyli have a noticeable kink ( Fig. 69 , absent in A. fabrella , present in A. tomora but other previously mentioned characters apply).

Etymology

From the Latin prefix ‘ sub ’, meaning ‘less’ and the Latin adjective ‘ viridulus ’, meaning ‘green’, in reference to the subtle metallic green colouration of its scutal integument.

Material examined

Holotype IRAN • ♂; Tehran Province, 6 km N of Gačsar [Gachsar]; 36.188° N, 51.307° E; 29 May–2 Jun. 2002; J. Prochazka leg.; OÖLM.

Paratypes IRAN • 8 ♂♂, 1 ♀; Tehran Province, 6 km N of Gačsar [Gachsar]; 29 May–2 Jun. 2002; J. Prochazka leg.; OÖLM • 2 ♂♂, same collection data as for preceding; TJWC .

Description

Female

MEASUREMENTS. Body length 6 mm ( Fig. 61 ).

HEAD. 1.3 times as wide as long. Clypeus dark, domed, weakly punctate, punctures separated by 1–3 puncture diameters. Clypeus surface microreticulate, centrally and basally with weakly raised latitudinal microreticulation, giving impression of weak latitudinal striations, becoming obscure apically; underlying surface weakly shining ( Fig. 62 ). Process of labrum narrow, slightly longer than wide, narrowly rounded-triangular. Face, gena, vertex, and scape with whitish to brownish hairs, frons laterally with intermixed dark brown hairs at level of antennal insertions. Gena exceeding width of compound eye; ocelloccipital distance subequal to diameter of lateral ocellus. Foveae extremely narrow, dorsally occupying 1/5 distance between compound eye and lateral ocellus, subequal to width of flagellum, uniformly wide, clearly extending below level of antennal insertions; foveae filled with dark brown hairs. Antennae dark, A3=A4+5.

MESOSOMA. Scutum and scutellum weakly shagreened over majority of area, weakly shining, shagreenation becoming stronger over anterior part of scutum, here dull. Scutum with weak and subtle metallic green reflections when viewed laterally. Scutum and scutellum irregularly but clearly punctate, punctures separated by 0.5–3 puncture diameters. Pronotum without humeral angle. Mesepisternum and lateral and dorsolateral faces of propodeum with fine granular shagreen, weakly shining; mesespisternum anteriorly and dorsolateral faces of propodeum with fine network of raised rugosity. Propodeal triangle laterally delineated with fine carinae, internal surface covered in fine network of raised rugosity, becoming sparser laterally; propodeal trinangle therefore defined by change in surface sculpture. Mesepisternum with moderately long whitish hairs, scutum and scutellum dorsally with short dark brownish hairs; propodeal corbiculae thin, composed of sparse whitish plumose hairs, internal surface with sparse simple white hairs. Legs dark, apical tarsal segments lightened dark orange, pubescence whitish to light brown; tibial scopae whitish, with scattered brown hairs dorsobasally, femoral scopae and flocculus white. Hind tarsal claws with inner tooth. Wings hyaline, stigma dark orange to dark brown laterally, venation dark orange, nervulus interstitial; first recurrent vein enters second submarginal cell slightly before its middle.

METASOMA. Terga dark, apical margins of T2–4 slightly depressed, depression weakest on T2, strongest on T4, all marginal areas unicolourous black ( Fig. 63 ). Tergal discs of T1–3 with extremely dense raised microreticulation, tergal discs also densely punctate, punctures separated by 0.5–1 puncture diameter, punctures and microreticulation combining to form dense network of bead-like punctures separated by slightly raised margins; integument dull ( Fig. 64 ). Entirety of T1 covered with dense microreticulation, discs of T2–3 with microreticulation, becoming progressively weaker. Disc of T4 without bead-like punctures, punctures distinct, without raised margins, punctures separated by 3–4 puncture diameters. Marginal areas of T2–4 impunctate, T2 with fine microreticulation, T3–4 without microreticulation, shagreened and weakly shining. T2–3 laterally with weak whitish apical hair fringes, obscure, T4 with hair fringe very sparse but complete. Apical fringe of T5 and hairs flanking pygidial plate golden; pygidial plate rounded triangular, flat, with homogenous granular pattern, dull.

Male

MEASUREMENTS. Body length 5.5–6 mm ( Fig. 65 ).

HEAD. 1.3 times as wide as long. Clypeus structurally as in female, entirely covered in long, plumose, ventrally directed brownish hairs ( Fig. 66 ). Process of labrum short, trapezoidal, smooth and shining, apical margin shallowly emarginate. Gena, vertex, and scape with long plumose brownish hairs, longest exceeding length of scape. Gena slightly exceeding width of compound eye; ocelloccipital distance slightly less than half diameter of lateral ocellus. Antennae dark, A3 sligtly exceeds A4, shorter than A4+5.

MESOSOMA. Mesosoma structurally as in female ( Fig. 67 ), though pubescence exceeding length of scape.

METASOMA. Terga structurally as in female, though terga more densely and strongly punctate, punctures variable in size, separated by 0.5–1 puncture diameter ( Fig. 68 ). S8 columnar, apical margin truncate, ventrally covered in moderately long golden hairs. Genital capsule slightly elongate, gonocoxae medioapically truncate, right-angled, not produced into points. Gonostyli with rounded kink in inner margins basally, apically flattened, broadened, not parallel-sided. Penis valves relatively narrow basally, slightly narrowing apically ( Fig. 69 ).

Distribution

Northern Iran (Tehran Province).

Figures

Figs 61–64. Andrena subviridula Wood sp. nov., ♀ (OÖLM). 61. Profile. 62. Face. 63. Terga. 64. Terga, detail.

Figs 65–70. 65–69. Andrena subviridula Wood sp. nov., ♂ (OÖLM). 65. Profile. 66. Face. 67. Dorsum. 68. Terga. 69. Genitalia. – 70. Andrena fabrella Pérez, 1903, ♂ (TJWC), genitalia.

Figs 41–44. Andrena elam Wood sp. nov., ♀ (OÖLM). 41. Profile. 42. Face. 43. Dorsum. 44. Terga.