■Chora.] CHAEACE^. 465 



Kildare {Praeger): Groves i8g3 Sj- i8qs. Lough Crew near 

 Oldcastle, Meath: Praeger iSgy.—Yl. Headlord, Galvay (.2. 

 Shutfleworth) : Groves 1880. Lougli Derg, Galway {Linton) : 

 Groves 1886. — VII. Scraw tog and Lough Owel, 'Westmeath 

 {Zevinge and Groves): Groves i8gj. — VIII. Moycullen, Galway: 

 Groves i8g^. — IX. Foxford, Mayo (More): Groves 1880. — 

 X. Loughgall Lake, Armagh : Praeger i8g^. 



First gathered in Great Britain hy Sherard in turf bogs in 

 Ireland, and figured from his specimens by Plukenet in 1691, 



5. C. contraria Kuetz. 



Districts I. — III. — V. VI. VII. VIII. IX. X. — XII. 



Lat. 52°-55i°. From South to North. 



Lakes, canals, ponds, &c. ; not infrequent. Frt. June-August. 



I. Near Black Point, Eossbehy, Kerry: R. W. S. i88g.— 

 III. Canal near Monasterevan, Queen's Co. {Praeger) : Groves 

 x8g5 — this locality extends ittto — V. Wear Glasnevin, Dublin, 

 \%i1 {B. WArdle): Groves 1885. Wear Oldcastle, Co. Meath : 

 Praeger iSg'j. — VI. Lough Derg, Galway {Linton) : Groves i88b. 

 Einmaher Point and mouth of "Woodford river, Lough Derg : N. C. 

 i8g'j. — VII. Lough Owel {Levinge and Groves') : Groves i8gj. 

 Lough Ennel, Westmeath: Groves i8g^. Canal at Edenderry, 

 Eing's Co. : Praeger i8g'j. — IX. Lough Allen, Leitrim, 1883 

 {Stewart) : Groves 1884. Eiver Suek at BeUagUl bridge, Eos- 

 common : Praeger j8g'j. — X. At Croaghan Island, Lough Weagh, 

 Armagh {Bm. S. W. Lett) : Praeger z8gj. Lough Sheelin, Cavan ; 

 Praeger. — XII. Clandeboye Lower Lake, Down ; near Limavady 

 Junction, Herrj {Praeger Sf Bonnan) : B. N. F. C. Proo. z8go-gj. 



Va/r. HisprDTixA Braun — VII. Brittas Lake, Westmeath {Levinge 

 and Groves) : Groves i8g5. — VIII. and IX. Wear Cong, in both 

 Gal way and Mayo ( C. Bailey) : Groves 1886. 



First found in Ireland by David M'Ajcdle, near Glasnevin, in 

 1882. 



6. C. denudata Braun. 



0. dissoluta Leonh. 



Districts — — — _ _ _ VII. — — — — — 

 Lat. 53^°. Westmeath lakes only. Very rare. Frt. July-Aug. 

 VII. Brittas Lake,. Enock Drin, Westmeath {Levinge) : Groves 



i8gs- 



2h 



