Chlerogella euprepia 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 : 60-62

Chlerogella euprepia Engel , sp. n.

urn:lsid:zoobank.org:act:E49A396A-4AED-4A0F-B3A9-5E98F23583DE

Figs 95–98, Map 3

Holotype. ♀, ECUADOR: Napo, 1200 m, km 7.3 Sarayacu-Loreto rd. , 20 July 1994, F. Génier, ex: feces trap ( SEMC).

Figures 95–98. Holotype female of Chlerogella euprepia sp. n. 95 Lateral habitus 96 Facial aspect 97 Lateral aspect of head 98 Dorsal aspect of mesoscutellum, metanotum, and propodeum.

Paratypes. ECUADOR: 1♀, Morona-Santiago, Cord. de Cutucu , 6 km E of Macas, 1100 m, 9.v.1987 [9 May 1987], M. Cooper ( COOP) ; 1♀, Mor. Santiago, Miazal , 50 km SE Macas, 4–7.i.1993 [4–7 January 1993], 300 m, M. & J. Wasbauer ( BLCU) ; 1♀, Napo, via Hollin-Loreto , km 25, 1100 m, 6/12/87 [6 December 1987], leg. M.M. Meria ( QCAZ) .

Diagnosis. Chlerogella euprepia is noteworthy among longer-headed species of Chlerogella for the amber markings on the mesoscutellum and metanotum, contrasting with the otherwise metallic coloration of the mesosoma (Fig. 98).

Description. Female: Total body length 9.78–9.82 mm; forewing length 6.47– 6.50 mm. Head length 2.69–2.71 mm, width 1.82–1.83 mm. Clypeus beginning below lower tangent of compound eyes. Malar space 44.8–45% compound eye length (malar length 0.68 mm; compound eye length 1.51–1.52 mm) (Figs 96–97). Upper interorbital distance 0.88–0.89 mm; lower interorbital distance 0.65–0.66 mm. Upper portion of pronotum slightly swollen, medially about 1.25 times ocellar diameter in length; ventral portion of preëpisternal sulcus not broad, similar to scrobal sulcus and upper portion of preëpisternal sulcus; intertegular distance 1.32–1.38 mm; mesoscutellum weakly convex, not bigibbous. Basal vein distad cu-a by two times vein width; 1rs-m distad 1m-cu by vein width; 2rs-m distad 2m-cu by four times vein width, 2rsm straight; 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 slightly shorter than that of third submarginal cell; posterior border of third submarginal cell about 1.75 times longer than anterior border. Distal hamuli arranged 2-1-2. Inner metatibial spur with five branches (not including apical portion of rachis).

Clypeus and supraclypeal area smooth with weak punctures separated by 0.5–2 times a puncture width; face with small contiguous punctures; similar punctures in ocellocular area and vertex, punctures separated by 0.5–1.5 times a puncture width, integument otherwise finely imbricate; gena finely imbricate with minute punctures separated by a puncture width; postgena imbricate and impunctate. Pronotum imbricate with minute, scattered punctures; mesoscutum imbricate with small punctures separated by less than a puncture width; mesoscutellum as on mesoscutum; metanotum imbricate with scattered minute punctures. Preëpisternum finely imbricate with weak punctures separated by 0.5–2 times a puncture width; mesepisternum finely imbricate with small and shallow punctures separated by 2–4 times a puncture width; metepisternum finely imbricate. Propodeum strongly imbricate. Metasoma finely imbricate.

Mandible amber except reddish brown at apex; labrum amber; clypeal apex amber, remainder of clypeus and head metallic green with copper highlights. Antenna brown except scape amber and flagellum lighter ventrally. Mesosoma metallic green with copper highlights (Fig. 95) except pronotal lobe brown and mesoscutellum and metanotum largely amber (Fig. 98) and contrasting with mesoscutal and propodeum metallic coloration; tegula translucent amber. Wing membranes yellowed; veins amber except Sc+R and longitudinal veins basad basal vein brown. Legs amber except procoxa metallic green. Metasoma amber except TIII–V with large medial, transverse areas of dark brown, similar areas of dark brown on SIII–V (degree of development of such dark brown bands variable in type series).

Pubescence largely golden, somewhat white on face.

Male: Unknown.

Etymology. The specific epithet is based on the Greek term euprepes, meaning “comely”.