HYDROMETRIUvE. 13^ 



Family HYDROMKrRlD.E. (Vol. II, p. 168.) 



Subfamily MESOVELIIN.E. (Vol. 11, p. 168.) 



Genus MESOVELIA. (Vol. II, p. 168.) 



Mesovelia mulsanti. (Vol. II, p. 169.) 



I was previously only able to record tbis species from Ceylon, 

 at least so far as tbis fauna is concerned. 



A.dd : Hah. Bengal ; Port Canning (brackisb pools, Ind. Mus.), 

 Calcutta, at ligbt (Paiva), Rajsbai (Annandale), Puri, Orissa 

 Coast [Annandale). United Provinces ; Luckuow {AnnawlaU). 



Subfamily VELIIN^E. (Vol. II, p. 171.) 



Genus RHAGOVELIA. (Vol. II, p. 171.) 



2910. Rhagovelia nigricans, Burm. (Velia), Handb. Ent. ii, ]). 213 

 (1835) ; Maijr, Reise Novara, Hem. p. 181 (1861)). 

 Velia iuferualis, Butl. Ann. Mag. Nat. Hist. (4) xvii, p. 411 



(1876) ; id. Phil. Trans, clxviii, pi. liv, f. 5 (1879). 

 Rhagovelia maculata, Dist. A. 31. N. H. (7) xii, p. 472 (1903). 

 ? Var. Rhagovelia reitteri, lieut. Of v. Finsk, Vet. Soc, Fork, xxv, 

 p. 39 (1882). 



Piceous black ; anterior margin of pronotum (sometimes medially 

 interrupted), base of first joint of antenna?, counexivum above and 

 beneatb, base of rostrum, acetabula, cox», trochanters, bases of 

 femora above and the greater part of femora beneath, luteous ; 

 hemelytra witb a narrow streak at base and sometimes some 

 smaller scattei'ed spots bluish grey ; antenna*, legs, and margins ofc' 

 pronotum somewhat longly pilose ; first joint of anteunie lougest, 

 outwardly curved, second and fourth subequal, each slightly 

 shorter than third. 



Length 3 to 4 millim. 



Hab. Travancore {Annandale). Ceylon {Green):, Diyatalawa 

 {Bainhrigge-Fletclier). — iSyria. Egypt. Abyssinia. West Africa. 

 Mascarene Islds. Seychelles. 



This species is mostly represented by apterous forms. 



