NOTIPlilLA. 251 



1. cinerea, Fal. Act. Holm. 250. Hydr. 8. 2 (1813); Meig. ; Mcq.! 

 pi. 21. f. 9; Hal.; Zett. palustris,Desv. Trap&,~Desv.fulvicornis, 

 Desv. Facie fulvescente, palpis tibiis tarsisque ferrugineis, thorace fer- 

 ruginoso, abdomine cinereo nigro-maculato. Long. 2 ; alar. 4 lin. 



lace tawny-yellow. Palpi, tibia, and tarsi ferruginous. Thorax rust- 

 brown. Abdomen cinereous, with black spots. 



Everywhere abundant in marshes. Desvoidy has observed that 

 it deposits its eggs in the flowers of Potamogeton. (E. S. I.) 



2. riparia, Meig. Zw. vi. 65. 2 (1830) ; Mcq. ; Hal. ; Zett. Facie 

 cinerea, palpi tibiis tarsisque ferrugineis, thorace ferruginoso, abdomine 

 cinereo nigro-maculato, tibiis annulo nigro. Long. 2 ; alar. 4 lin. 



Face cinereous. Palpi, tibue, and tarsi ferruginous. Thorax rust- 

 brown. Abdomen cinereous, with black spots. Tibia with a black 

 ring. 



Not rare. (E. I.) 



3. uliginosa, Hal. A. N. H. iii. 922. 3 (1839). Facie fulvescente, 

 palpis pedibusque nigris, thorace ferruginoso, abdomine cinereo nigro- 

 maculato, tarsis ferrugineis. Long. 2 ; alar. 4 lin. 



Face tawny-yellow. Frontalia deep-black. Vertex, orbits, and tho- 

 rax rusty-brown. Antennae and palpi black. Wings obscurely hyaline. 

 Halteres yellowish. Abdomen cinereous, with a blackish spot at the 

 sides of each segment. Legs black ; the tarsi (at least the two hinder 

 pairs) ferruginous. 



Found in a marsh between Glengariff and Adrighoule ; on the 

 banks of the Shannon at Tarbert ; on the shores of Belfast Lough. 

 (I.) 



Subgenus 2. DICEUETA. 



DICH^TA, Fal. Act. Holm. 1813. Hydr. 8. 247 (1813); Meig.; Mcq. ; 

 Hal. 



Abdomen maris convexum, apice bispinosum, segmento penultimo margine 

 pectinato. Characteres reliqui fere quales Notiphila. 

 Like NotipJiila. Male. Abdomen convex, with two spines at the tip ; 



penultimate segment with a pectinated border. 



4. caudata, Fal. Act. Holm. 1813. Hydr. 8. 249 (1813) ; Meig. ! 

 Zw. pi. 58. f. 1-6; Mcq.; Hal. Nigra, obscura, facie fulvescente, 

 tarsis ferrugineis. Long. 2 ; alar. 4 lin. 



Black, dull. Face tawny-yellow. Tarsi ferruginous. 

 Bare. (E.) 



Subgenus 3. DISCOMYZA. 



DISCOMYZA, Meig. Zw. vi. 76 (1830); Mcq. ; Hal.; Stenh. Psilopa 

 p., Fal. ; Zett. 



