Mexalictus (Georgealictus) anatolii Dumesh, 2013

DUMESH, SHEILA, 2013, <p> <strong> Revision of the rare Mesoamerican bee genus <em> Mexalictus </ em> (Hymenoptera: Halictidae) with the description of </ strong> <br /> <strong> 21 new species </ strong> </ p>, Zootaxa 3708 (1), pp. 1-80 : 59-60

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Mexalictus (Georgealictus) anatolii Dumesh

new species

Mexalictus (Georgealictus) anatolii Dumesh , new species

( Figs. 164–165)

Holotype. Female. MEXICO, Chiapas, Chiquihuite , malaise trap, N15.09492 W92.10406, 2026m, 6-24.xi.2009, S. Dumesh and L. Packer [ PCYU]; collection code PCYU-MEX09-0157 , barcode accession number 03763G04- MEX. GoogleMaps

Diagnosis. This species can be distinguished from others by the following combination: mandible uniquely translucent yellow; hyaline wings, legs, and apical half of all terga; body pubescence entirely yellow. This species is most similar in appearance to M. polybioides , both species being the largest members of the genus, but could be separated by the metallic green integument (dark non-metallic brown), yellow pubescence (pale whitish), and hyaline apical terga (uniform, non-hyaline).

Description. Female (Holotype): Body length 11.0– 11.2mm, wing length 9.0– 9.1mm, head width 2.3– 2.4mm, ITW 1.55–1.60mm. Head: round, L:W = 1.02:1; metallic green. (1) Labrum and mandible: labrum with subrectangular basal area, basal elevation sulcate, with a medial depression, narrow triangular distal process; mandible basally hyaline yellow, becoming red in apical 2/5. (2) Clypeus: metallic green in basal 1/2, becoming shiny brown-black apically; length 0.90X length of supraclypeal area, 3/4 of length below lower ocular tangent, weakly convex in lateral view, slightly less protuberant than supraclypeal area, basal margin convex; punctures dense laterally and basally, separated by less than <1pd, somewhat interrupted medially, punctures becoming more sparse, larger and coarser apically. (3) Supraclypeal area: mostly dull except basal shiny area around antennal sockets; convex, much more protuberant than clypeal area; apical width subequal to length; punctation slightly denser laterally, punctures separated by <1pd laterally, becoming sparser medially (>2pd). (4) Lower paraocular area: mostly dull becoming shiny towards paraocular lobe; punctation becoming less crowded below antennae, especially towards supraclypeal area (2pd); paraocular lobe very finely punctate; dense and bright yellow pubescence. (5) Frontal area: frontal line carinate only between antennae, from basal third of supraclypeal area to 2MOD from median ocellus, with a slightly depressed line reaching median ocellus; punctures dense and crowded. (6) Vertexal area: shiny, with a weak transverse depression; OOD = 1.6MOD, IOD = 1.5MOD, OVD = 1.1MOD; punctures dense and crowded, separated by 0.25pd at most, coarse and crowded medially, more separated laterally. (7) Genal and hypostomal areas: genal area shiny, narrower than compound eye in lateral view, punctures separated by 1–2pd above and>3pd below; hypostomal area nearly impunctate, bare and slightly dull. (8) Antenna: laterally orange; scape reaching past median ocellus, pedicel slightly longer than wide, F2 shorter than F1, flagellomeres slightly increasing in length apically, F2–F5 wider than long, F6–F9 quadrate, F10 longer than wide. Mesosoma: entirely metallic green (9) Pronotum: smooth, impunctate, shinier laterally than dorsally, nearly bare; pronotal lobe pubescent, bearing pale branched hairs. (10) Mesoscutum: mostly dull, slightly shiny laterally; granular along margins and median line; pubescence yellow with several black hairs mostly evident anteriorly; punctures separated by 1pd in central disc becoming more sparse anteriorly, separated by 2–3pd. (11) Mesoscutellum: entirely shiny, slightly depressed medially with raised areas on central discs appearing slightly bilobed; punctures fine and dense around margins and medial line (1pd), larger and well separated on central disc (>2pd). (12) Metanotum: entirely shiny below pubescence; punctures extremely fine, separated by 3–4pd, with dense short hairs basally. (13) Mesopleuron: dull, punctures shallow and well separated (2–3pd); pre-episternum with punctation similar to mesopleuron, punctures deep and coarse anteriorly; hypoepimeral area and central episternum dull, with fine scattered punctures above, nearly impunctate below; pubescence erect, hairs entirely yellow. (14) Metapleuron: shiny, but somewhat granular, transversely striate basally, with black minute pubescence. (15) Metapostnotum and propodeum: metapostnotum basally shiny becoming dull baso-medially, with a slight medial depression, length 0.90X length of mesoscutellum, striation present basally, short and rugostriate, extending near 1/ 3 dorsal surface; propodeum weakly sloping posteriorly, long yellow hairs laterally and posteriorly. (16) Wings: marginal cell tinted golden-brown, rest of wing nearly entirely infuscate, apically darkened; venation golden-brown on marginal and basal veins, 1 st recurrent vein meeting 1–1.5 vein widths basad of 2 nd transcubital vein. (17) Tegula: golden brown, anteriorly dull becoming shiny posteriorly, punctate with longer, dark pubescence anteriorly. (18) Foreleg: tarsi with hairs yellow, basitarsus parallel sided, about 4X as long as width, hairs thick, erect and spine-like with a lateral patch of short golden erect hairs distally; tibia distally broadened, about 2.5X as long as greatest width, with yellow erect hairs, longest ventrally; femur about 3X as long as greatest width, with branched yellow sparse hairs ventrally, nearly bare dorsally; trochanter slender, about 2X as long as distal width, with hairs erect; coxa subtriangular, slightly depressed laterally, with branched yellow hairs. (19) Middle leg: as foreleg, except as follows: basitarsus without lateral patch of short hairs distally; tibia with apicoventral patch of yellow, long and dense pubescence on apical 2/3; femur with a lateral patch of dense short golden hairs proximally, and a patch of long yellow hairs near proximal margin; trochanter distally broadened, length 1.5X width; coxa somewhat hidden within ventral pleuron. (20) Hind leg: as middle leg, except as follows: basitarsus 3.5X as long as greatest width with several branched hairs, pubescence less dense than on tibia; tibia slender, 4X as long as greatest width, densely pubescent, hairs yellow-brown, long and erect; femur 4X as long as greatest width, without lateral patch of hairs, scopa well developed, with long brown branching hairs, somewhat sparse; trochanter and coxa with long, branching, yellow pubescence; trochanter much shorter, nearly as long as wide; coxa similar to that of foreleg; tibial spurs yellow, apically darkened; inner hind tibial spur microserrate, with over 15 short, close teeth. Metasoma: (21) Terga: dull and brown, T1–T3 with an apical yellow band, T1 slightly shinier than T2 and T3; T4– T5 entirely brown with extremely faint green metallic reflections; pubescence pale, long and branched on T1, short and dark brown on T2–T4, long and dark on T5, sparse long hairs about 3X as long as short erect hairs. (22) Sterna: S1 with white long pubescence basally, S2 with pale, long branching hairs basally becoming brown and erect apically; S3–S5 with long and brown hairs, present on apical half of sternum, S6 with few short and erect black hairs on apex, otherwise bare.

Male: unknown.

Material examined. MEXICO, Chiapas, Chiquihuite , malaise trap, N15.09492 W92.10406, 2026m, 6- 24.xi.2009, S. Dumesh and L. Packer (holotype female, PCYU-MEX09-0157 , barcode label 03763G04-MEX [ PCYU]) GoogleMaps ; GUATEMALA, San Marcos, km 1.3 Bojonal Road , 1456’N 9152’W, 1600m, 13-14.vii.2001, DCH, DY (paratype female: UCRC ENT 66830 View Materials [ UCRC]) ; Zacapa Dept., Sierra de las Minas, Cerro los Monos , ~ 4km NNW San Lorenzo, 2230m 18 to 21-V-2010, Shelley, Steck & Sutton, cloud forest (3 paratype females [ FSCA]) .

Etymology. This species is named in memory of my father (Anatoli Dumesh) who was a great mentor and who influenced my interest in science, especially in that of biodiversity.


The Packer Collection at York University


University of California, Riverside


Florida State Collection of Arthropods, The Museum of Entomology