Andrena (Longandrena) dolini Osytshnjuk, 1979

Radchenko, Vladimir G., Allahverdi, Mohammad & Fekrat, Lida, 2021, Revision of the mining bee subgenus Andrena (Longandrena) (Hymenoptera: Apoidea: Andrenidae), Zootaxa 5032 (4), pp. 489-515 : 501-507

Andrena (Longandrena) dolini Osytshnjuk, 1979

Andrena dolini Osytshnjuk, 1979: 174 ; ♀ ♂; Turkmenistan, Kushka [Serhetabat] ( Fig. 5, 6 ) (SIZK).

Female (holotype): body length (vertex to T6): 9–10 mm ( Figs 57, 58 ), body predominantly black, pubescence gray-yellow. Head: black, 1.1 times wider than its length (L = 2.7 mm, W = 3 mm), narrowed below ( Fig. 59 ), considerably wider than mesosoma. Clypeus slightly wider than its height, strongly shining, elongate and convex, basally with very fine shagreen and distinct punctures, centrally and apically smooth and polished with very small sparse punctures. Lateral parts of clypeus in lower half deeply bent inward at right angle, apical margin narrowly depressed. Vertex surface coarsely granular, distance between lateral ocellus and vertex margin almost 0.7 times ocellus diameter; posterior vertex margin concave. Central and upper part of paraocular area longitudinally densely striate and punctate; in lower part, strongly shining, almost impunctate. Facial foveae with short very dark desaturated yellow pubescence, occupying 1/3 of area between lateral ocellus and compound eye, extending to level of antennal sockets’ lower margin and strongly narrowed below. Frons coarsely shagreened in upper part and densely striated in lower part, clearly punctated with thin impunctate medial line reaching middle ocellus. Compound eyes convex, 2.5 times narrower than length, their inner margin evenly curved along entire length; distance between central and lateral ocelli slightly greater than 1/2 of their diameter. Malar area length 8 times shorter than width ( Fig. 60 ). Basal elevated plate of labrum about 4 times wider than long, shiny, slightly transversely wrinkled at base; mandible moderately short, its inner tooth well developed ( Fig. 61 ). Scape long and curved, flagellum segments dark brown. 1st flagellomere 3 times longer than wide at apex, much longer than 2 nd and 3 rd flagellomeres combined ( Fig. 62 ). Hypostomal carina clearly developed only in lower part of hypostomal area but absent in upper part ( Figs 63, 64 ), lateral extremity of hypostomal carina with subgenal coronet. Mouthparts elongate ( Fig. 65 ), galea longitudinally wavy shagreened, almost impunctate, with very sparse superficial punctures on dorsal part ( Fig. 66 ). Galea apex slightly narrowed, broadly rounded with long dense fringes. Maxillary palpus considerably longer than galea; glossa 7 times longer than its width at base ( Fig. 67 ); labial palpus longer than glossa. Mesosoma : W (between tegulae) = 2 mm, black with slight dark blue tint. Mesonotum and scutellum shining, but completely densely weakly shagreened, small area in middle of scutum smoothly polished, sparsely punctured by both large and small superficial punctures, punctation on periphery denser and shallower, intervals between points equal to 1–3 puncture diameters ( Fig. 68 ). Mesepisternum weakly shiny, shagreened, with oblique superficial punctures, dense in some areas. Propodeal triangle large, shining, reticulate-shagreened, with clear lateral borders, apex of triangle horizontal part with coarser shagreening ( Fig. 69 ); propodeal corbicula well developed, complete. All legs dark, floccus long and well developed, gray-white, scopal hair simple, except outer parts with plumose hair, white, slightly darker at base of tibia, with silver-white hair along ventral edge; inner side of metabasitarsus with golden-yellow oblique hair; midbasitarsus straight, not curved laterally; at base of inner side with long dense slanting tuft of hair, central inner part of this segment with more short and dark pubescence ( Fig. 70 ); Inner metatibial spurs curved in basal half and in apex, weakly widened ( Fig. 23 ), 2 nd –5 th tarsal segments strongly narrowed basally, all tarsal claws in holotype and paratype with very small, reduced inner teeth ( Fig. 26, 27 ). Wings shaded, light brown, veins and stigma amberyellow. Forewing nervulus weakly postfurcal. Metasoma: L = 4.7 mm; W = 2.8 mm ( Figs 71, 73 ). Terga black with very weakly metallic tint, shining, very densely distinctly shagreened, with scattered superficial punctures; marginal zones of terga equal to 1/3 of tergal length, with wide yellow-white dense hair bands widely interrupted on T1 and narrowed in middle of T2; tergal apical margin weakly enlightened, depressed laterally. Prepygidial fimbria goldenyellow. Pygidial plate with strongly elevated flat mesh-striated triangular zone, its bordering vertical part striated, surrounding lateral areas smoother with narrowly raised margins ( Fig. 72 ). Sterna dark brown, shagreened, sparsely punctate on S1–S2, more densely on following sterna, except for small impunctate areas in middle of S3–S5 base. Marginal part of S2 depressed in middle. Narrow apical margins of sterna lightened, transparent. Basal parts of S2–S5 covered with short setae, very sparse on S2 and denser on S3–S5. Apical margins of S2–S5 with long sparse fringes, shorter in middle ( Fig. 73 ).

Male. Body length (vertex to T7) = 8–8.5 mm (Figs 74, 75). Similar to female in body shape, sculpturing, and with predominantly gray-yellow coloration of pubescence. Head rounded, much wider than mesosoma, slightly wider than long (L = 2.4 mm; W = 2.8 mm) with faint bronze-blue metallic sheen (Fig. 76, 77). Compound eyes protruding, wide. Surface of head in anterior part, except clypeus, longitudinally rugose-striated, shining and densely punctured in lower half of paraocular area and on supraclypeal area, with relatively sparse gray-yellow pubescence. Compound eyes convex, wide, only 2 times longer than their width. Genal area with long erect light-gray hair. Clypeus convex, slightly elongated, its width almost equal to length (L = 1 mm; W = 1.1 mm), strongly shining, polished, with small distinct scattered punctures bearing very sparse long semi-erect light-gray hairs and denser long fringes at apical and lateral margins near epistomal suture lower half. Clypeus yellow, except for narrow black peripheral areas and wider lower lateral corners, and one dark triangular spot on each side of clypeus median part, and usually (in two of three male paratypes) with small yellow round spot laterally on paraocular area lower part (Fig. 76). Vertex narrowed behind ocelli and deeply concave at hind margin. Distance from lateral ocelli to vertex margin slightly less than ocellus diameter, and distance between middle and lateral ocelli slightly more than 1/2 of ocellus diameter (Fig. 77). Malar space very narrow, 0.1 times as long as broad, its basal part, near paraocular carina, with sparse, distinct punctures, bearing one short hair each, bifurcated in upper half (Fig. 79). Mandibles short with preapical tooth on upper margin, basally on outer side with relatively dense short light gray hairs, and on upper and lower margins with very long sparse gray-yellow hair. Surface of labrum basal part smooth, shiny, polished, without punctures; process of labrum trapezoidal, its anterior part apically notched; area around labral process with dense

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FIGURE 74–83. Male of Andrena dolini (paratype): 74—Male in dorsal view; 75—Male in lateral view; 76—Head in frontal view; 77—Vertex; 78—Upper part of compound eye; 79—Malar area;; 80—Mouthparts in ventrolateral view; 81—Glossa; 82—Labrum in frontal view; 83—Labrum in ventral view.

deep punctation at center and on laterals, each puncture with one short golden-yellow hair together forming small tufts (many of these hairs broken off in studied specimens), ventral part of labrum very wide, in structure differs significantly from female labrum, posteriorly with dense long golden-yellow fringe (Figs 82, 83). Antennae long, reaching metanotum. Scape long, slightly curved, covered with long erect grey-yellow hair (Fig. 76). Flagellum dark; 1 st flagellomere almost 3 times as long as wide at apex and slightly longer than 2 nd and 3 rd combined, 2 nd almost equal to slightly shorter than wide, 3 rd to 11 th longer than their width ( Fig. 85 ). Galea shiny, weakly shagreened, with sparse short fringe along the lower margin, and denser and longer hairs at apex ( Fig. 84 ). Glossa (L = 0.9 mm) 8 times longer than its width at base (Fig. 81), but significantly (2–2.5 times) shorter than that of other A. ( Longandrena ) species; labial palpus approximately as long as glossa, maxillary palpus one last segment longer than galea (Fig. 80). Mesosoma : W (between tegulae) = 1.6 mm, with bronze-blue metallic sheen ( Fig. 86 ). Sculpture of mesosoma almost like female. Scutum and scutellum shiny, clearly shagreened, with very sparse hair-bearing punctures, hairs long, erect, plumose gray-yellow; center of scutum with small polished area and very slightly noticeable shagreen. Mesepisternum shagreened, weakly shining, with superficial punctures and long gray-yellow pubescence. Propodeal triangle clearly marked by shinier and coarser mesh of shagreen and delimited from lateral faces, the latter with very sparse pubescence ( Fig. 87 ). Tegulae yellowish-brown; forewing nervulus weakly postfurcal, stigma and wing veins dark yellow. Midbasitarsus, as in female, straight, not curved laterally, with long dense slanting hair tuft at base of inner side, and in central part of this segment with more short dark pubescence ( Fig. 88 ); 2 nd –5 th tarsal segments brownish, strongly narrowed basally; tarsal claws with large inner teeth ( Fig. 89 ). Metasoma: L = 4 mm, W = 2.3 mm, slightly narrower than in female ( Figs 90, 91 ). Terga densely shagreened, T1–T5 laterally before marginal part with small, scattered hair-bearing punctures, T1 basal part more sparsely and roughly punctured; marginal parts of terga narrower and more strongly depressed than in female, apical margins strongly shining, finely shagreened, slightly discolored, brown with very narrow more translucent apical margin. Sterna punctation, especially laterally, much coarser and denser than on terga; narrow apical margin of sterna bleached, translucent; S2–S5 with weak long gray-yellow hair bands, those on S2 interrupted; S8 angularly notched at apex ( Figs 92, 93 );. Genitalia with welldeveloped dorsal teeth of gonocoxites, widely rounded at the apex, with spatula-shaped gonostyli widened at the apex; penis valves strongly widened basally ( Fig. 94, 95 ).

Studied material: Holotype: ♀, Turkmenistan, Kushka [Serhetabat], 11.iv.1976; paratypes: 2 ♂ ♂, ibid, 11– 12.iv.1976, leg. V. G.Dolin ( Figs 5, 6 ; SIZK); 1 ♀ 1 ♂ (paratypes), ibid, 11–12.iv.1976, leg. V. G.Dolin ( ZISP).

Distribution. Turkmenistan (Fig. 2).

Flight period. Mid-April ( Osytshnjuk 1979).

Figures

FIGURE 3–7. Labels of the examined type materials: 3—Labels of Andrena longiceps lectotype; 4—Labels of Andrena nativa holotype; 5—Labels of Andrena dolini holotype; 6—Labels of Andrena dolini paratype; 7—Labels of Andrena nativa paratype.

FIGURE 57–64. Female of Andrena dolini (holotype): 57—Female in dorsal view; 58—Female in lateral view; 59—Head in frontal view; 60—Malar area; 61—Labrum and mandibles; 62—Flagellum; 63–64—Anterior part of hypostomal area in lateral view (the red arrows show hypostomal carina).

FIGURE 65–73. Structure of Andrena dolini female body (holotype): 65—Mouthparts in latero-ventral view; 66—Galea in lateral view; 67—Glossa; 68—Scutum and scutellum; 69—Propodeum; 70—Midbasitarsus; 71—Metasoma in dorsal view; 72—Pygidial plate; 73—Metasoma in ventral view.

FIGURE 22–31. Structure of A. (Longandrena) females body: 22–24—Hind leg tibial spur; 25–28—Middle leg 2nd–5th tarsi and tarsal claws; 29—Metasoma in dorsal view; 30—Pygidial plate; 31—Metasoma in ventral view. (22, 25, 29–31—Andrena longiceps; 23, 26, 27—Andrena dolini holotype; 24, 28—Andrena nativa paratype).

FIGURE 84–95. Structure of Andrena dolini male body (paratype): 84—Galea in lateral view; 85—Flagellum; 86—Scutum and scutellum; 87—Propodeum; 88—Midbasitarsus; 89—Hind leg tarsal claws; 90—Metasoma in dorsal view; 91—Metasoma in ventral view; 92—Sternum 8 in ventral view; 93—Sternum 8 in dorsal view; 94—Genitalia in dorsal view; 95—Genitalia in lateral view.