166 



Very rare, on sandy coasts. In Mr. Holiday's collection. (I.) 



Obs. D. agilis, Stn. ib. 127. 22, seems to come very near to 



this, differing, however, by the stronger bend of the subapical 



vein, the anterior tarsi black with only the metatarsus pale, and 



the thickened tip of the hind tibiae; but see Ztt. d. s. 3081. 



25. simplex, Mg. (mas.) zw. iv. 85. 20 (1824); Stn.; Mq. ; Stg.; 

 Ztt. thalassinus, Hal. JEneo-viridis, antennis nigris basi luteis, pedibus 



flams, tarsis nigris, metatarsis anterioribus fiavidis, hypostomate fla- 

 vescente, Mas. ; aut cano, Fcem. Long. 2 ; alar. 4 lin. 



Brassy-green. Front usually bluish-green. Face in male pale 

 yellowish, with silver gloss, in female dull whitish. Antenna blackish, 

 the first joint (and in the female the second also) entirely tawny yellow. 

 Wings dark hyaline, rather brownish in female. Legs, fore coxa? en- 

 tirely, and the tip of the hind pair, pale yellow ; hind tibiae with a 

 blackish spot at the tip ; tarsi blackish, anterior metatarsi yellowish, 

 rather dusky in the second pair. Fore coxas in male not entirely 

 denuded. 



Pretty common. (E. S. I.) 



26. lineatocornis, Ztt. d. s. 538. 32 (1843). Firidi-aneus, an- 

 tennis nigris basi subtus luteis, pedibus Jlavis, tarsis nigris, metatarsis 

 anterioribus fiavidis, hypostomate flavido, Mas. ; aut cano, Fcem. 

 Long. 2 ; alar. 4 lin. 



Brassy -green. Face ochre-yellow in male, dull whitish in female. 

 Antenna black, lower edge of first joint tawny yellow. Wings dark 

 hyaline. Legs and fore coxa3 dull yellow ; tip of hind tibia and the 

 tarsi blackish ; anterior metatarsi yellowish. 



Eare. In Mr. Dale's collection. (E.) 



27. sabinus, Hal. a. n. h. ii. 184 (1838). -pictus, Stg.; Ztt. 



JEneus, hypostomate candido, antennis nigris basi subtus luteis, pedibus 



flams, tibiis posticis apice tarsisque nigris, his basi Jlavidis ; Mas. alls 



lineola costali nigra, maculaque snbapicali fusca. Long. 1-| ; alar. 



3| lin. 



Brassy. Front metallic green. Face silvery- white. Antenna 

 black, the lower edge of the first two joints tawny yellow, extending to 

 the base of the third. Wings dark hyaline, immaculate in the female, 

 in the male with a dusky spot along the fore edge in the outer half, and 

 the black costal swelling short. Legs and fore coxae yellow, hind tibia 

 blackish at the tip; tarsi black; base of the metatarsi yellow, more 

 largely in the anterior pairs. Hind tibia rather thick in the male, 

 with an impression behind above the middle. 



Eare. In Mr. Haliday's collection. (I.) 



28. nubilus, Mg. zw. iv. 76. 39 (1824); Stn.; Stg.; Ztt.- 

 inquinatus, Hal. Obscure aneo-viridis, hypostomate candido, antennis 

 nigris puncto infero lutescente, pedibus Jlavis, femoribus tibiisque posticis 



