Euhesma lyngouriae Hogendoorn & Leijs

Hogendoorn, Katja, Stevens, Mark & Leijs, Remko, 2015, DNA barcoding of euryglossine bees and the description of new species of Euhesma Michener (Hymenoptera, Colletidae, Euryglossinae), ZooKeys 520, pp. 41-59 : 48

Taxon classification Animalia Hymenoptera Colletidae

Euhesma lyngouriae Hogendoorn & Leijs sp. n. Figs 6 A–D

Material examined.

Holotype: ♀, SAMA 32-033284, Bon Bon Station, South Australia, 30.2389°S, 135.5098°E, 26 October 2010, R. Leijs, on flowers of Swainsona stipularis (SAMA). BOLD: AUSBS137-12.

♂, unknown.

Diagnosis.

Most like Euhesma aurata , however, forewing first recurrent vein interstitial with first submarginal crossvein, margin between clypeus and supraclypeal area lacking furrow, all abdominal segments amber, lacking brown bands.

Description.

Female. Length approximately 6.0 mm; wing length approximately 3.5 mm. Head width 1.6 mm. Relative head measurements: width 50; length 50; clypeal length 14; lower interocular distance 28; upper interocular distance 32; interantennal distance 12; antennocular distance 6; interocellar distance 12; ocellocular distance 8. Anterior margin of clypeus truncate, upper margin slightly concave, lacking median furrow; frons with median area elevated; facial fovae broad, upper part slightly bent towards ocelli; antennal scapes anteriorily flattened; malar space short; labial palp segments increasing in length in the order 1 = 3, 2. Clypeus and frons above antennae; facial fovae interocellar area and scutum with dense reticulation and dull. Head black; antennae brown with flagella yellowish ventrally; labial palp segments 1 dark brown, 2 and 3 yellowish; legs and gaster amber, tergal fovae and fore femora posteriorly dark brown. First recurrent vein of forewing interstitial with first submarginal crossvein. Scattered long white hairs on frons, clypeus, antennal scapes, vertex, mandibles, posterior genae, sides of thorax, venter and gastral tergum 5.

Remarks.

The type lacks labial palp segment 4.

Etymology.

The specific name refers to the amber coloured legs and gaster of the female.