EPHYDRA. 261 



5. interstincta, Fal. Act. Holm. 1813. 354 (1813); Meig. ; Mcq. ; 

 Hal. ; Zett. — macuUptnnis, Desv. Thorace fusco-c'mereo, tibiis tai'sisque 



ferrugmeis, alarum venis transversis et pimctis sex fuscis. Long, f ; 

 alar. \\ lin. 



Thorax brownish-grey . Whigs loith brown transverse veins, and with 

 six brotvn Jots. Tibice and tarsi ferruginous. 



Common on grass. (E. I.) 



6. internipta, Hal. E. M. I. 176 (1834.). Facie antennis tarsisgtie 

 Jlavis, thorace cinereo fusco-vittato, alis fuscis disco hjalinis venis trans- 

 versis fuscis. Long. 1 ; alar. 2 lin. 



Face, antenna, and tarsi yellow. Thorax grey, with brown stripes. 

 Wings brown ; disc hyaline ; transverse veins brown. 



Eare ; found at lioUywood, mid on the sandy sliore of Killiney 

 Bay, county Dublin. In Mr, Haliday^s collection. (I.) 



7. posticata, Meig. Zw. vi. 134. 37 (1830); Mcq.; nn\.—nigri- 

 cauda ? Steuli. ; Zett. Cinerea, abdominis apice nigro, facie antennis 

 tarsisque flavis, alis hyalinis. Long. 1 ; alar. 3 lin. 



Grey. Face, aniennce, and tarsi yelloio. Wings hyaline. Abdomen 

 black at the tip. 



Not uncommon. (I.) 



Subgenus 2. Hyadina. 



Hyadina, Hal. A. N. H. iii. 406 (1839). Notiphila p., Fal. ; Zett. 

 Ephydra-^.; Meig.; Mcq. Tlydrina Tp., Desv. 



Fades perpendicular is, superne parnm angustata, vix nisi nuda. Arista 



pubescens. Vena costalis ala apicem ambiens, vena discaU-recmre7is 



ab aloe margine distans, vence brachiuUs ibidem sinu appivximatce. Ab- 



domen ^-annulatum, segmento qninto magno glaberrimo. 



Face vertical, slightly straitened above, almost hare. Arista pubescent. 



Costal vein embracing the tip of the wing ;-discal-recnrrent vein remote 



from the border of the wing ; brachial veins approximate in one bend of 



the wing. Abdomen with five segments ; fifth segment large, very smooth. 



8. guttata, Fal. Act. Holm. 1813. 253. 11. 13 (1813) ; Meig.; 

 Hal. ; Zett. — nitida, Mcq. — vernalis, Desv. Nigra, subiiitida, antennis 

 subtus pedibusqne testaceis, scutelli lateribus aterrimis, alis albo-guttatis. 

 Long. \ ; alar. 1 lin. 



Black, slightly shining. Antennae beneath and legs testaceous. 

 Sides of the scutellum deep black. Wings with white dots. Var. /3. Face 

 silvcry-whitc or straw-colour. Var. y. Legs dusky. The clear dot 

 above and below the transverse vein is not very evident unless when 

 the wings overlap. 



Common in swam})y spots. (E. I.) 



