174 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvin. 



R. .sv/y.s/ Kriigor." ''TIciinuth: Niir Sumatra, Soekaranda (Dohrn)."' 

 ""Diese nouo art gvhoi't ziir (Jnippo hrfcro^iiujiDar 



R. hir.'^cli! Kriiu-cr,''' "Hoimath: Niir Sninatra, Soekaranda (Dohrn)." 

 "Diese neuo art ])ildet eine neuo Gruppe l)ei Rhlnoeypha zwischen 

 hetero-'itlgiitii und tlttcta.^'' 



R. hraidi'l Kriiger/' ''Heimatli: Nur Suinba ((Trelak)." Described 

 as related to un'nihienlata and stygia. 



R. Ac/f/t^y^/ Kriig-er,'' "Heimath: Nur Jolo (Standing-er)/' Described 

 as belonging to the group f!ncta. 



R. N^ hitehead i Kivhy,' Hainan. A\\\ed to jjerforata. 



R. inas Laidlaw,'^ (lunong Inas. "Closely allied to perforata.'''' 

 "The marks of the hind wing resemble most closely those of R. white- 

 head I Kirb}^''' 



R. adamanfhia Forster^/ ''Heimath ebenfalls Sikkim, ohne g'enaue- 

 ren Fundort.'' Described as most closely related to quadrtmaculata. 



R. auruh'iitd Forster^' "Heimath: Die Siidmolukken-Insel Buru der 

 sie endemisch zu sein scheint.*" "^. auridenta g'ehort zur terminata- 

 Gruppe, die sie mit der seinlthicta verkniipft." 



No less than 49 specific names have been proposed in this genus. 

 The tendency recently seems to be to regard many of these as local 

 races, if distinct at all.' R. iiiax and vduteheadl seem identical with 

 apicalis. I can not distinguish cuneata and adamcmt'nia nor qaadrl- 

 uuicvJata and xpui'la so far as descriptions g'O. 



Speaking of ih^fene.sfrella group, Ftirster says: 



lUi. (luadr'niKiviilald, (KhiUKUitlmi von Nord Indien, i^purla von den Khasia Hills, 

 cnncnta von Thibet nnd fenedreUa von Malakka sind Rassen des fevestrella-Typus 

 und gehoren zu den brillantesten Insekten der Erde. 



To one at afl faujiliar with North American fresh-water fishes, these 

 dragonfiies. witli gorgc'ous males and sober females, diminutive mem- 

 bers of a family containing many giants, can not but suggest the dart- 

 ers (Etheostomina") of whom Professor For])es has written: 



Although dhninished in size * * * they have developed * * * a vigor of 

 life and a glow of color almost unknown among the easier dwellers of the lower 

 lands. * * * Notwithstanding their trivial size, they do not seem to be dwarfed 

 so nuich as concentrated fishes. 



"Stett. Ent. Zeit., 1898, p. 81. 

 ''Idem, p. 8;^. 

 '"Idem, p. i;i%\ 

 ''Idem, p. i:i5. 



''Ann. and Mag. Nat. Hist., 7th ser., V, June, 1900, p. 536, pi. xii, fig. 4. 

 ./■Proc. Zool. Soc. Lond., Feb., 1902, p. 88, pi. vi, fig. 6. 

 f/Ann. Mus. Nat. Hungarici, 190:3, p. 547. 

 ''' Idem, p.- 547. 



^Selys, Ann. Soc. Esp., XX, 1891, pp. 21:^-215, and F()rster, Ann. Mus. Nat. Hun- 

 garici, 1903, pp. 546, 547. 



