Gabrius STEPHENS 1829
Creators: name: Hromádka, L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Gabrius

description: Key to the species of the genus Gabrius from Madagascar   
1 Larger species, body length 6.7-7.2 mm.............................................................................2  
- Smaller species, body length 4.0- 5.6 mm............................................................................3  
 2 Whole antennae black, pronotum parallel-sided, eyes about one third shorter than temples (ratio 8: 11.5).................................................................. G. ingratus FAUVEL 1905   
 - Antennomeres 1-3 yellow-brown, pronotum narrowed anteriorly, eyes shorter than temples about one a half (ratio 6: 12)...................................... G. quadriceps JARRIGE 1978   
3 Pronotum narrowed anteriorly............................................................................................4  
 - Pronotum parallel-sided......................................................................................................5   
 4 Punctation of elytra denser, separated by one puncture diameter, legs yellow-brown, tibiae slightly darker................................................................................ G. ardeola nov.sp.   
 - Punctation of elytra sparser, separated by two puncture diameters, legs brown-yellow, tarsi paler distally............................................................................. G. lemur JARRIGE 1978   
5 Head parallel-sided..............................................................................................................6  
- Head narrowed posteriorly, trapezoidal..............................................................................7  
 6 Antennae shorter, reaching midlength of pronotum when reclined, head slightly shorter than long (ratio 15: 16), eyes less than twice shorter than temples (ratio 5: 9)............................................................................................................... G. cyanolanus nov. sp.   
 - Antennae longer, reaching posterior fifth of pronotum when reclined, head wider than long (ratio 16: 14), eyes more than twice shorter than temples (ratio 5: 12)...................................................................................................................... G. tsaratananus JARRIGE 1970   
 7 Each dorsal row with 5 punctures, antennae long, reaching posterior sixth of pronotum when reclined....................................................................... G. phelsuma HROMÁDKA 2007   
- Each dorsal row with 6 punctures.......................................................................................8  
 8 Whole body brown-red, antennomeres 1-2 yellow-brown, remaining antennomeres dark-brown.......................................................................... G. fimbriolatus ERICHSON 1840   
- Whole body black...............................................................................................................9  
 9 Head wider than long (ratio 20: 17), eyes slightly shorter than temples (ratio 6: 8)......................................................................................................................... G. taphozous nov.sp.   
 - Head as long as wide, eyes more than twice shorter than temples (ratio 5: 12)...................................................................................................................... G. delamarei JARRIGE 1970
description: Published as part of Hromádka, L., 2011, Revision of the genus Gabrius STEPHENS 1829 from Madagascar and adjoining Islands (Coleoptera: Staphylinidae: Philonthina), pp. 1377-1397 in Linzer biologische Beiträge 43 (2) on pages 1392-1393, DOI: 10.5281/zenodo.5326699