138 



British Dragoitjlies. 



appendicibus caudalibus brunneis, nee nigris, ut et loco 

 natali ab ilia facile dignota. Ala; cinereo-hyalina.% basi 

 infima nigra, flavedine levissinic inducta, versus apiceni 

 in regione stigmatis nigricantis umbra fusca leviter 

 tincta^. Cellula triangularis ad basin et membranula 

 appendicea ut in pnecedente. Squamula aperturani 

 \'entralem juxta anum tegente incumbcns. In vi\a oculi 

 dimidietate inferiori glauci, superiori castanei, in mortua 

 toti brunnei. (J. W. Zetterstedt. " Insecta Lapponica 

 Descripta," p. 1041, n. 5, 1840.) 



J-'ic;. 28. — Anal Appendages of Male of Somatochlok.v arctica. 



(Magnified, ) 

 a.. Dorsal view. h.. Lateral view. 



Size. 



Length of Male, 49mm. ; expanse of wings, Gjnnn. 

 Length of Female. 49mm. ; expanse of wings, ()8mm. 



Male Imago. 



Head and thorax bronze-green ; a \-ellow si)()t in front 

 of each eye, and the base of the upper lip wllow. 

 lives green. Wiih^s suffused with a \-ello\\ ish tint. 



