Chrysis, LINNAEUS, 1761

KEY TO THE ARABIAN HEXADENTATE SPECIES OF CHRYSIS LINNAEUS, 1761 View in CoL

1. Species with mucronate metanotum ............................................................................................................ 2

— Species without mucronate metanotum ....................................................................................................... 5

2. Apical margin of third tergum with four small, triangular, median teeth, the lateral ones located on baso-lateral edge of tergum ( Fig. 8E View FIG ); metanotal mucron elongate, medially carinate, apically blunt and impunctate ( Fig. 8B View FIG ); black spots on second sternum small, longitudinal, and suboval ( Fig. 8F View FIG ) ............... C. lyncea Fabricius, 1775

— Apical margin of third tergum with six aligned teeth; metanotal mucron triangular, fully punctate, flat or medially concave; black spots on second sternum large, transverse, fused to almost fused medially ...................... 3

3. Transverse frontal carina U-shaped, simple, without branches ( Fig. 9A View FIG ); first flagellomere elongate (l/w = 2.5-3) in female, slightly longer than second; mesopleuron smooth and shiny on two stripes on mesepimeron and on mesepisternum ( Fig. 9C View FIG ); forewing with ancillary vein originating from the Radial sector ( Fig. 9D View FIG ) ............... ............................................................................................................................... C. smithii Gribodo, 1913

— Transverse frontal carina M-shaped, with two or three branches upwards or enclosing anterior ocellus if frontal carina U-shaped, then mesopleuron fully punctate;; first flagellomere short (l/w = 0.5-1) in both sexes, 2 to 3 times shorter than second; mesopleuron fully punctate; anterior wing without ancillary vein ...................... 4

4. Mesoscutum with very large punctures (up to 1 MOD), widely separated by polished interspaces; notauli exceptionally wide ( Fig. 10C View FIG ), larger than largest punctures on mesoscutum basally, notauli triangularly shaped, larger at base and narrower towards apex .......................................................... C. oxyacantha Mocsáry, 1838

— Mesoscutum with medium to large punctures (max 0.7 MOD), dense with narrow interspaces, occasionally with small punctures; notauli not exceptionally wide, formed by subsquare large foveae, as large as largest punctures on mesoscutum, notauli larger at base, not distinctly triangularly shaped ........... C. stilboides ( Spinola, 1838)

5. Transverse frontal carina M-shaped, with branches encircling anterior ocellus ( Fig. 7A View FIG ); mesopleuron with strong tooth on lower margin ( Fig. 7C View FIG ); body colour dark blue to violet; black spots on second sternum subrectangular, connected to lateral margins ........................................................................ C. jousseaumei du Buysson, 1898

— Transverse frontal carina inverted U-shaped ( Fig. 11A View FIG ); mesopleuron simple, without teeth ( Fig. 11B View FIG ); body colour green; black spots on second sternum triangular, separated from lateral margins ( Fig. 11F View FIG ) ................. ............................................................................................................................ C. diehli Linsenmaier, 1968