Chlerogella hauseri Engel, 2010

Engel, Michael, 2010, Revision of the Bee Genus Chlerogella (Hymenoptera, Halictidae), Part II: South American Species and Generic Diagnosis, ZooKeys 47 (47), pp. 1-100 : 14-18

Chlerogella hauseri Engel , sp. n.

urn:lsid:zoobank.org:act:32EA2B73-11BE-4094-B00D-7E808C483B64

Figs 9–13, 16–17, Map 1

Holotype. ♁, BOLIVIA: Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi , 1685 m, 15°40'19"S, 67°29'35"W, 15–21.iv.2004 [15–21 April 2004], malaise traps, S.D. Gaimari & M. Hauser ( CSCA).

Paratypes. BOLIVIA: 1♁, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi , 1685 m, 15°40'19"S, 67°29'35"W, 15–21.iv.2004 [15–21 April 2004], malaise traps, S.D. Gaimari & M. Hauser ( SEMC) ; 1♁, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi , 1685 m, 15°40'19"S, 67°29'35"W, 19.iv.2004 [19 April 2004], S.D. Gaimari ( CSCA) ; 2♁♁, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi , 1685 m, 15°40'19"S, 67°29'35"W, 7–15.iv.2004 [7–15 April 2004], malaise traps, S.D. Gaimari & M. Hauser ( CSCA) ; 1♁, Prov. La Paz, Cumbre Alto Beni, vicinity of Caranavi , 1685 m, 15°40'19"S, 67°29'35"W, 7–15.iv.2004 [7–15 April 2004], malaise traps, S.D. Gaimari & M. Hauser ( SEMC) .

Diagnosis. This is one of the largest species of Chlerogella currently known, sharing its prodigious size with its more northern cousin, C. hypermeces (vide infra). Chlerogella hauseri and C. hypermeces both approximate in size species of the superficially similar genus Chlerogas . Chlerogella hauseri can be distinguished by the combination of an extremely elongate head (Figs 9–11), a unique color pattern of the head and body (Figs 9, 11), a swollen metafemur (Fig. 12), the structure of the male SIV (Fig. 13) and terminalia (Figs 16–17).

Description. Male: Total body length 11.39–11.67 mm; forewing length 7.53–7.87 mm. Head length 3.39–3.54 mm, width 1.74–1.85 mm. Clypeus beginning below low- er tangent of compound eyes (Fig. 11). Malar space 59.3–64.6% compound eye length (malar length 1.02–1.04 mm; compound eye length 1.61–1.72 mm) (Figs. 10–11). Upper interorbital distance 0.78–0.83 mm; lower interorbital distance 0.47–0.49 mm. First flagellomere about as long as pedicel, about as long as wide; second flagellomere three

Figures 9–Ι3. Male of Chlerogella hauseri sp. n. 9 Lateral habitus Ι0 Lateral aspect of head ΙΙ Facial aspect Ι2 Hind leg Ι3 Apical sterna of metasoma.

Figures Ι4–Ι7. Male terminalia for Bolivian Chlerogella species Ι4 Chlerogella cochabambensis sp. n., hidden and fused sterna VII and VIII Ι5 C. cochabambensis sp. n., genital capsule (left is dorsal aspect, right is ventral aspect) Ι6 C. hauseri sp. n., hidden and fused sterna VII and VIII Ι7 C. hauseri sp. n., genital capsule (left is dorsal aspect, right is ventral aspect). All scale bars = 1 mm.

times length of first flagellomere; ventral surfaces of second through eleventh flagellomeres densely covered in placoid sensilla, placoid fields disrupted by narrow mediolongitudinal line of fine, minute trichoid sensilla in small apical patches on flagellomeres IV–VIII and basal patches on flagellomeres IV–XI, basal and apical patches on flagellomere IV particularly small and basal patch on flagellomere IX longest. Upper portion of pronotum medially depressed, not elongate, medially less than 0.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper por- tion of preëpisternal sulcus; intertegular distance 1.43–1.48 mm; mesoscutellum weakly bigibbous. Basal vein distad cu-a by three times vein width; 1rs-m distad 1m-cu by five times vein width; 2rs-m distad 2m-cu by ten times vein width, 2rs-m gently curved; first submarginal cell longer than combined lengths of second and third submarginal cells; second submarginal cell slightly narrowed anteriorly, anterior border of second submarginal cell along Rs shorter than that of third submarginal cell; posterior border of third submarginal cell nearly two times longer than anterior border. Distal hamuli arranged 2-1-2. Profemur ventrally swollen; meso- and metafemora somewhat swollen (Fig. 12); inner metatibial spur serrate. Apical margin of SIII entire; apical margin of SIV produced medioapically, with broad concave emargination between setose lobes (Fig. 13), without medio-longitudinal furrow; apical margin of SV with broad, shallow medioapical emargination; apical margin of SVI emarginate; terminalia as depicted in figures 16 and 17.

Clypeus and supraclypeal area imbricate with weak punctures separated by 2–4 times a puncture width; face with small, contiguous punctures, more widely spaced in malar space; punctures of face blending to faintly imbricate integument in ocellocular area and vertex, with small punctures separated by 1–4 times a puncture width; gena faintly imbricate with small punctures separated by 1–2 times a puncture width; postgena imbricate and impunctate. Pronotum weakly imbricate with minute punctures separated by 1–2.5 times a puncture width; mesoscutum coarsely imbricate with minute punctures separated by a puncture width or less, anteromedially punctures becoming faint to absent; mesoscutellum faintly imbricate with small punctures separated by 1–2 times a puncture width, separated by less than a puncture width on weak mesoscutellar tubercles; metanotum faintly imbricate with small punctures separated by a puncture width or less. Preëpisternum faintly imbricate with small punctures separated by 1–2 times a puncture width; mesepisternum faintly imbricate with small punctures separated by 2–5 times a puncture width, punctures weak; metepisternum faintly imbricate. Propodeum strongly imbricate. Metasoma weakly imbricate.

Mandible and labrum pale yellow; clypeus and malar area alongside clypeus yellow (Figs 10–11), remainder of head shining metallic green, with some golden highlights. Scape and pedicel yellow, although the latter sometimes more brown and the former sometimes with some brown dorsally at apex; first flagellomere brown, remainder of flagellum dark brown. Mesosoma dark metallic green (Fig. 9), with very slight bluish tint on pleura, pronotal lobe yellowish brown (in holotype there is a yellowish spot on the upper third of the metepisternum and the lateral and posterior surfaces of the propodeum are yellowish brown); tegula translucent yellow brown. Wing membranes weakly infumate; veins yellowish brown except C and Sc+R dark brown. Legs yellow except procoxae metallic green as on remainder of mesosoma and brown marks dorsally on meso- and metatibiae and dorsally and ventrally on metafemur (in holotype metacoxa also has metallic green on outer surface and this same area is dark brown without metallic coloration in one of the paratypes). Metasoma dark brown except TI yellow with dark brown apical margin and TII with basolateral yellow spots; SI yellow; SII light brown to brown.

Pubescence golden; typical gender pilosity except postgena with numerous elongate, sinuate setae, such setae with short apical branches; inner surfaces of trochanters, mesofe- mur, and metacoxa with elongate, apically-plumose setae, similar setae on inner surfaces of metatrochanter, metafemur, and metatibia except largely simple and somewhat sinuate, those of metatibia particularly elongate and sinuous at apices. Apical margin of SIII with diffuse fringe of moderate-length setae; SIV with small medioapical pads of short dark golden setae bordering medial emargination and lateral areas of more diffuse long, inwardly-curved setae; SV laterally with diffuse areas of long, inwardly-curved setae.

Female: Unknown.

Etymology. The specific epithet is a patronym honoring Dr. Martin Hauser who collected part of the type series, recognized the significance of the bees, and generously made the material available for study.