Geotomus, MULSANT et REY, 1866

A key to Australian species of Geotomus View in CoL

I. Clypeus with a subapical pair of setigerous punctures bearing hair-like setae ( Fig. 5) .......................................................................................................2 - Clypeus without a subapical pair of setigerous punctures bearing hair-like setae .......3

2. Costa! margin without setigerous punctures; paramere as in Fig. 23; aedeagus as in Fig. 24................................................................................ G. oceanicus SIGN. - Costa! margin with setigerous punctures bearing hair-like setae; paramere and aedeagus not as above....................................................................... G. distanti SIGN.

3. Costa! margin with a single setigerous puncture bearing hair-like seta ( Fig. 11); paramere as in Fig. 14......................................................... G. gracilipes SIGN. - Costa!margin without setigerous punctures .....................................................4

4. Eyes large, strongly protruding ( Fig. 8), ocular index 2.5-2.9; evaporatopria on mesoand metapleuron smaller ( Fig. 9); paramere as in Fig. 10........................................G. sp. - Eyes small, slightly protruding ( Figs 2, 16, 18), ocular index 3.5-7.5; evaporatopria on meso- and metapleuron larger ( Fig. 17) ..........................................................5

5. Smaller species, 3.3-4.5 mm in length; dorsal body side shining; anterior margin of pronotum shallowly insinuated behind head ( Fig. 1), its lateral margins with a row of 7- 8 submarginal setigerous punctures bearing long hair-like setae; paramere as in Fig. 3...................................................................................... G. breweri SIGN. - Larger species, 4.45-5.20 mm in length; dorsal body side opaque; anterior margin of pronotum deeply insinuated behind head (Fig. 15), its lateral margins with a row of 3-6 submarginal setigerous punctures bearing long hair-like setae................................ 6

6. Body elongated, about 1.9-2.0 times longer than broad; head conspicuously elongated anteriorly Lo eyes ( Fig. 18), the latter very narrow, ocular index 4.5-7.5; paramere as in Fig. 27; aedeagus with second conjunctiva! appendages elongated, apically narrowed ( Fig. 21).......................................................................... G. ocellatus sp. n. - Body ovate, about 1.7-1.8 times longer than broad; head broadly rounded before eyes ( Fig. 16), the latter broader, ocular index 3.5-4.l; paramere as in Figs. 25, 26; second conjunctiva!appendages not as above ( Figs. 19, 20) .......................................... 7

7. Smaller species, body length 4.45-4.90 mm, body width 2.65-2.83; eyes narrower, ocular index 3.80-4.10; pronotum about 1.60-1.71 times as broad as long; costa basally moderately flattened and almost unexpanded; aedeagus with second conjunctiva) appendages elongated, clearly bilobed apically ( Fig. 19), paramere narrow ( Fig. 25) ........................................................................... G. katakadioides sp. n. - Larger species, body length 5.00- 5.20 mm, body width 2.89-2.92; eyes broader, ocular index 3.50-3.70; pronotum about 1.73-1.87 times as broad as long; costa basally strongly flattened and expanded laterally; aedeagus with second conjunctiva! appendages short and stout, apically almost blunt ( Fig. 20), paramere broad ( Fig. 26).................................................................................... G. obesus sp. n.