Telephanini, LeConte, 1861

Thomas, Michael C. & Nearns, Eugenio H., 2008, A new genus of telephanine Silvanidae (Coleoptera: Cucujoidea), with a diagnosis of the tribe and key to genera, Insecta Mundi 2008 (48), pp. 1-14 : 10-12

Key to genera of Telephanini of the world

Note: Specimens of Indophanus and Megapsammoecus were not available for examination; characters for these taxa are derived from the literature.

1. Scutellary striole absent ( Fig. 4, 5 ) .............................................................................................. 2

— Scutellary striole present ( Fig. 17 , 23, 24 ) ................................................................................... 4

2 (1). Frontal grooves present and well-marked; scutellum without posterior marginal groove; Old World ................................................................................................. Psammoecus Latreille ( Fig. 5 )

— Frontal grooves indistinct or absent; scutellum with or without posterior marginal groove ...... 3

3 (2). Frontal grooves absent; pronotum laterally tuberculate at most; New World, Madagascar, and Reunion Is. ................................................................................ Telephanus Erichson ( Fig. 4 )

— Frontal grooves present, but indistinct; pronotum laterally with long, spiniform processes; India........................................................................................................................ Indophanus Pal

4(1). Tarsomere III incrassate, but definitely not lobed; hind legs of males elongate, hind tarsi modified; intercoxal process of mesothorax wider than mesocoxal cavity; parameres reduced; Mexico and Central America ...................................................................... Aplatamus Grouvelle ( Fig. 3 )

— Tarsomere III lobed or bilobed; intercoxal process of mesothorax narrower than mesocoxal cavity ................................................................................................................................................... 5

5(4). Tarsomere III bilobed .................................................................................................................... 6

— Tarsomere III with single ventral lobe ......................................................................................... 7

6(5). Terminal labial palpomere securiform; two grooves on each side of frons (except one in Cryptamorpha desjardinsi ); pronotum laterally tuberculate at most; Old World Tropics (1 cosmopolitan species) ........................................................ Cryptamorpha Wollaston ( Fig. 6 )

— Terminal labial palpomere not securiform; one groove on each side of frons; pronotum laterally with long, spiniform processes; China........................................... Megapsammoecus Karner

7(5). Terminal maxillary palpomere securiform; Madagascar............ Psammaechidius Fairmaire

— Terminal maxillary palpomere not securiform ............................................................................ 8

8(7). Two grooves on each side of frons; terminal labial palpomere securiform; frontoclypeal suture absent; parameres long and spatulate ( Fig. 22 ); Neotropics ........ Euplatamus Sharp ( Fig. 2 ) (Note: In E. buqueti (Grouvelle) and related species, the frontal grooves are reduced to short segments or series of punctures, but the other diagnostic characters are sufficient to separate them from Australophanus .)

— One groove on each side of frons; terminal labial palpomere not securiform ( Fig. 13 ); frontoclypeal suture present; parameres absent ( Fig. 21 ); Chile............. Australophanus Thomas ( Fig. 1 )

Figures

Figure 1-6. Habitus. 1) Australophanus redtenbacheri (Reitter). 2) Euplatamus sp., Bolivia. 3) Aplatamus sp., Mexico. 4) Telephanus dentatus Nevermann, Haiti. 5) Psammoecus sp., Sulawesi. 6) Cryptamorpha desjardinsi (Guérin-Menéville).

Figure 16-17. Australophanus redtenbacheri. 16) Head, dorsal. 17) Scutellum and base of elytra.

Figure 23-24. Scutellum and base of elytra. 23) Euplatamus sp., Bolivia. 24) Aplatamus sp., Mexico.

Figure 21-22. Male genitalia, A, tegmen; B, aedeagus. 21) Australophanus redtenbacheri. 22) Euplatamus sp., Bolivia.

Figure 12-15. Australophanus redtenbacheri. 12) Maxillary palp. 13) labial palp. 14) tarsus. 15) scutellum.