122 Journal New York Entomological Society. [Voi. xi. 



CORDULIIN.«. 



Helocordulia uhleri. 30 25 Tetragoneiiria cam's 36 29! 



Epicordulia princeps 33 24 Cordulia shurtleffi 37 24 



Hemicordidia tail 34 23* Somatochlora elougata 38 24 



LiBELLULIN.E. 



Perithemis domitia 28 21 Mesoiheniis simpUcicoUis 43 34 



Acisoma panorpflides 28 24 Trithonis tninuscula 43 38* 



Rhyoihemis spleiuiida 33 25 Brachythemis contamiiiata..\\ 26 



Onychothemis abnormis 31 22 Tramea Carolina 44 27 



Brechmorhoga mendax 34 24 Pacliydiplax longipeniiis 44 27 



Lepthemis vesiculosa 34 27 Crocofheinis erythrcea 44 30 



Belouia herculea 35 19*^ natya anoviala 45 29 



Diastatops fine fa 36 27 Neurothemis eqiiestris 45 31 



Zygonyx iris 36 28 MicrafJiyria didyma 47 27 



Dyfliemis velox , 37 29 Pofamofheinis aincricana...^6 29 



Orfliefnini albistyliini 38 25 Synipefruni ri/bicitndii/um...^6 31 



Miafliyria marcel la 39 24 Pan fa la flavescens 47 25 



Plafhemis lydia 40 22 Celifhemis elisa 48 30 



Ladona Julia 40 28 Palpopleura vesfita 49 24 



Libellula pulchella 41 23 Melauiarpfis minekii 49 31 



Orflieniis ferruginea 41 27 Leucorhinia glacialis 51 23 



Naunofkeniis bella. 42 32 Macrotheniis sp.;j; 52 30 



Pseudophlebia //tiniina 43 28 



Su border Z > gopte ra . 



Fani. CALOPTERYGID.'E. 



Epiophlebin.^. ;j; 



Epipophlebia supersfes 43 45 



Epallagin.-e. 



Etphcca decorafa 51 Af^- Anisopleiira lesfoides 64 54 



Rhinocyplia 63 6if Bayadera indica 67 57 



Diph lebia lestoides 64 53 



* Minima : second column. 



•f Maxima : second column. 



% An undetermined species from Brazil, selected for the extreme reduction of its 

 venation. 



§ The preoccupied Selysian name Paltcoplilebia being now replaced by Epiopltlc- 

 bia (Calvert, Ent. News, vol. XIV, p. 208, I903), the subfamily name is here modi- 

 fied to correspond. 



