Cydnini

Lis, Jerzy A., 2000, Cydnotomus - a new Australian burrower bug genus, with two new species (Heteroptera, Cydnidae), Deutsche Entomologische Zeitschrift 47 (2), No. 2, pp. 137-141 : 4

Key to genera of Cydnini known from the Australian Region

l. Head with submarginal se1igerous punctures bcariDg pegs and hair-like setae....... ............................. 2 - Head wilh submarginal se1igerous punctures bearing only hair-like setae.................... .................... S

2, Polished pan of pcri1reme long, forming a posteriorly curved rounded lobe; scutellum sharply triangular. its apex narrow. ........ ...................................................................................... .. 3 - Polished part of peritreme short, nol forming a posteriorly curved lobe; scutellum tongue-like, its apex broad ........ 4

3. Lateral margins o[pronotum distinctly serrated .... ........................ ....... .. ........ Centrostephus Horvath - Lateral margins of pronotum nol serrated ..... ...... .. .... .. ... ...... ..... ...... .. ......... .... .. Chilocoris Mayr

4. Corium very short. not reaching I.he apex of sculellum......... ... ................. ........... Blaenocoris .r. A. Lis - Corium long, distinclly surpassing the apex of scutellum......... ................................ Nishocoris J. A. Lis

S. Scutcllar apex triangular, almost sharp.................. ........................... ............. Cydnus Fabricius - Scutellar apex broadly tongue-like...... ........................................ ........................... 6

6- Corium very short, occupying about two-fifths hemelytral length; eyes stylated ................ ... .. .. .. Blaena Walker - Corium long, reaching at least a half or hernelytral length; eyes noLstylated........ ........ ..................... 7

7• H ead margins carinatcd, not reflected upwards .....,................ ............... .. ..... Paranishadana J. A. Lis - Head margins nauened, renccted upwards.. .............. ........ ........................ .... Cydnotomuss gen. n.