Larrisson rieki Menke, 1979

Pulawski, Wojciech J., 2012, A review of the genus Larrisson Menke, 1967, and description of the new genus Larrissa (Hymenoptera, Crabronidae), Journal of Hymenoptera Research 25, pp. 35-82 : 69-70

Larrisson rieki Menke

Larrisson abnormis (corrected to Larrisson rieki by Menke, 1979: 457): Menke, 1967: 29 (generic characteristics); Bohart and Menke 1976: fig. 83E, 86B, 87B, 88C-D, 90F.

Larrisson rieki Menke, 1979b: 457, ♂. Holotype: ♂, Western Australia: 10 mi W Mullewa (UCD).-Cardale, 1985: 255 (in catalog of Australian Sphecidae ).

Geographic distribution.

Known only from the holotype. I have seen an additional specimen from South Australia: 9 km ESE Taylorville at 34.075°S, 140.04°E, 12 Nov 1987, I.D. Naumann and J. C. Cardale (♂, ANIC). These two males are markedly different, as tabulated above:

In spite of these differences, I consider them to be individual or geographic variants of one species, rather than members of two different species, as they share a number of unique characters: yellow antennae ( Fig. 24a ), dense, directed upward frontal setae, a flattened, concave midfemoral venter, obtusely carinate along both anterior and posterior margins ( Fig. 24b ), and an anteroventral hindfemoral margin that is slightly expanded preapically, with a row of small setae emerging from the expansion. They also share the following, non-unique characters: metanotum with median tooth, propodeum with prominent spine behind spiracle, and sternum II with transverse swelling.

Figures

Figure 24. Larrisson rieki, ♂ from South Australia: a head in frontal view b midfemur in ventral view.