Fig. 26- Stenelmis arenata adult showing appearance of middle 

 tibia of female on the left and of the male on the right (to 

 illustrate means of distinguishing sexes if genitalia are not 

 visible) . 



17 (16) Last tarsal segment distinctly longer than the other four 

 combined, the last segment usually suddenly dilated 

 beyond the middle (Fig. 27); tarsal claws relatively robust 



(Fig. 28) Humerosa-sinuata group 28 



Last tarsal segment not distinctly longer than the other 

 four combined, the last segment not as noticeably 

 dilated (Fig. 29); tarsal claws relatively slender 

 (Fig. 30) Crenata group 18 



27 29 



Figs 27-35 Tarsus of Stenelmis species: 27- Apical 

 segment of S. vitti-pennis; 28- S. markeli; 29- Apical 

 segment of S. sandersoni; 30- S. lateralis. Aedeagus (male 

 genitalia) of Stenelmis species: 31- S. sexlineata^ dorsal 

 aspect; 32- 5. arenata; 33- S. exigua; 34- S. heameri; 

 35- S. lateralis (all from Sanderson). 



29 



