© The Authors, 2013. Journal compilation © Australian Museum, Sydney, 2013 
Records of the Australian Museum (2013) Vol. 65, issue number 2: 39-50. 
ISSN 0067-1975 (print), ISSN 2201-4349 (online) 
http://dx.doi.Org/10.3853/j.2201-4349.65.2013.1597 
Five New Species of Leioproctus (Protomorpha) Rayment 
(Hymenoptera: Colletidae) 
Michael Batley 1 * and Tony J. Popic 2 
'Australian Museum, 6 College Street, Sydney NSW 2010, Australia 
michael.batley@gmail.com 
2 Desert Ecology Research Group, School of Biological Sciences, 
The University of Sydney NSW 2006, Australia 
tony.popic@gmail.com 
Abstract. Five new species of Leioproctus (Protomorpha) Rayment from western Queensland are 
described: Leioproctus crispus n.sp., L. gibber n.sp., L. gurneyi n.sp., L. latifrons n.sp. and L. nix n.sp. 
Females of all the new species, except L. nix , have specialized setae on the clypeus, frons or vertex of 
the head. A revised key to species is provided. 
Batley, Michael, and Tony J. Popic. 2013. Five new species of Leioproctus (Protomorpha) Rayment (Hymenoptera: 
Colletidae). Records of the Australian Museum 65(2): 39-50. 
Keywords: Anthophila, Colletidae, Leioproctus , Protomorpha , systematics, facial setae, Simpson Desert, 
nototribic flowers. 
In the most recent revision of the subgenus Leioproctus 
(Protomorpha) (Maynard, 1991), nine species were 
recognized, but only five were named. The remaining 
four were known from females only. In a recent study of 
plant-pollinator networks in the arid-zone grassland of the 
north-eastern Simpson Desert (Popic et al ., 2013), seven L. 
(Protomorpha) species were found, five of them undescribed. 
Four of the new species are the first in the subgenus to 
have specialized hairs on the head, a feature that has been 
suggested as indicative of particular pollen collecting 
behaviour (Muller, 1996; Thorp, 2000; Gonzalez & Chavez, 
2004; Rightmyer et al., 2011; Alqami et al., 2012). 
Terminology, methods and measurements 
The morphological terminology follows that used by 
Michener (Michener & Fraser, 1978; Michener, 2007) 
including use of the word hair and description of legs in 
their normal positions. Relative dimensions quoted in the 
descriptions were measured using an eye-piece graticule 
on a stereomicroscope with the zoom objective set to give 
a reading of 50 divisions for the head width. Abbreviations 
used for the measurements are those used by Houston 
(1990) and are as follows: AOD, antennocular distance; 
ASD, antennal socket diameter; FL, flagellum length; HL, 
head length; Ft VO, height of vertex above lateral ocelli; 
HW, head width; IAD, interantennal distance; LID, lower 
interorbital distance; OOD, ocellocular distance; SL, scape 
length; SW, scape width; UFW, upper width of face; UID, 
upper interorbital distance; WOC, width of ocellar cluster. 
Metasomal terga are referred to as Tl, T2 etc. and sterna 
as SI, S2 etc. The “hidden sterna” of males, S7 and S8, 
exhibit useful diagnostic characteristics and were extracted 
for examination. Geospatial coordinates are GPS readings. 
The following abbreviations are used for collections in 
which the specimens are lodged: AM, Australian Museum, 
Sydney; ANIC , Australian National Insect Collection, 
Canberra. 
* author for correspondence 
