Abstract
Twenty six new species of Australian Leioproctus (subgenusColletellus) (Hymenoptera, Colletidae) are described: aberrans Leijs, sp. n., alatus Leijs, sp. n., albipilosus Leijs, sp. n., albiscopis Leijs, sp. n., aliceafontanus Leijs, sp. n., altispinosus Leijs, sp. n., aratus Leijs, sp. n., auricorneus Leijs, sp. n., bidentatus Leijs, sp. n., centralis Leijs, sp. n., ciliatus Leijs, sp. n., claviger Leijs, sp. n., consobrinus Leijs, sp. n., constrictus Leijs, sp. n., laciniosus Leijs, sp. n., longivultu Leijs, sp. n., lucidus Leijs, sp. n., nitidifuscus Leijs, sp. n., pectinatus Leijs, sp. n., pilotapilus Leijs, sp. n., quadripinnatus Leijs, sp. n., rubicundus Leijs, sp. n., rubricinctus Leijs, sp. n., similis Leijs, sp. n., splendens Leijs, sp. n., submetallicus Leijs, sp. n. High resolution images of diagnostic characters for all type specimens are included. Identification keys are provided.
Highlights
The monotypic subgenus Leioproctus (Colletellus) was established by Michener (1965) for L. velutinellus, an unusual species of Australian neopasiphaeine bee with two submarginal cells and ciliate, rather than pectinate, inner hind tibial spurs
Houston (WA-Museum) and others, as well as specimens collected on a number of Bush Blitz surveys in remote locations of Australia indicates that L. (Colletellus), is a rather speciose group of bees
The latter surveys are the result of a partnership between the Australian Government, BHP Billiton and Earthwatch Australia to document fauna and flora from selected national reserves
Summary
The monotypic subgenus Leioproctus (Colletellus) was established by Michener (1965) for L. velutinellus, an unusual species of Australian neopasiphaeine bee with two submarginal cells and ciliate, rather than pectinate, inner hind tibial spurs. (Colletellus), is a rather speciose group of bees The latter surveys are the result of a partnership between the Australian Government, BHP Billiton and Earthwatch Australia to document fauna and flora from selected national reserves. (Colletellus) when using Michener’s (2007) identification key to the subgenera of Leioproctus of the Australian Region, with the exception of a single character: not all females have a ciliate hind tibial spur. Removing the latter character, the distinctive characters for the subgenus are a combination of two submarginal cells, convex clypeus and supra clypeal area, a large, parallel-sided stigma and the jugal lobe of the hind wing long, i.e. extending well below the level of cu-v
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