ORTHOPTERA. 
387 
Erythrodiplax, g. n., Brauer, /. r. pp. 368 & 722* Allied to preceding ; 10- 
14 antecubitals ; abdominal segments 2-3 with a transverse edge. Sp. E, 
fusca (Ramb.), contusa (Hag.), chloropleura (Braii.), aiiomala (Br.), umhrata 
(Linn.), superha (Hag.), distinguenda (Rainb.), (Ramb.), (Br.), 
and connata (Bunn.). 
Microihemis^ g. n., Brauer, 1. c. pp. 367 & 724 {^Perithemis, Br.)* Allied 
to Acisoma ; prothoracic lobe broadly 4-sided, scarcely emarginate ; abdomen 
broad, gradually diminishing from segment 4, segments 2 & 3 with a trans- 
verse edge. Sp. M. duivenhodei (Br.) 
Brachydiplax, g. n., Brauer, 1. c. pp. 172,368, & 726. Allied to preceding; 
discoidal cells at first in 2, then in 3 rows; abdomen short, 3-sided, thin, 
not notably thickened at base. Sp. B. thoracantha (Br.), hispina (Hag.), 
denticauda (Br.) ; B. chalyhea, sp. n., Brauer, 1. c. p. 173, Bohol. 
Diplacina, g. n., Brauer, 1. c. pp. 173, 368, & 733. Allied to preceding ; 
claws with a distinct tooth ; membranula small ; triangle rather wide. Sp. 
L. co7icinna, Jlava, hrevipennis^ and tetra ( Ramb.) ; D. nana^ sp. n., Brauer, 
1. c. p. 174, Zebu, Bohol. 
Trithemis, g. n., Brauer, 1. c. pp. 176, 366, & 735. Ilinder margin of pro- 
thorax 3-lobed, middle lobe small ; claws toothed ; middle cell with only 1 
transverse vein ; wings usually acute, posterior broader at base ; superior 
sector trianguli nearly straight. Sp. Z. aurora and stictica (Burm.), soror, 
distincta, ohsoleta, festiva, mtermedia, marchali, ccesia, gemmata, affinis, and 
dlhipvnctata (Ramb.), ruhrmervis and hcematina (Selys), unifasciata (Oliv.), 
nigra (V. d. Lind.), and mai’nois, infernalis, and africana (Brauer). 
Brachythemis^ g. n., Brauer, 1. c. pp. 367 & 736. Allied to preceding ; 
superior sector trianguli curved ; segments 2-4 of abdomen with a transverse 
edge ; vagina in $ uncovered. Sp. Z. conta^ninata (Fab.). 
Crocothemis, g. n., Brauer, 1. c. pp. 367 & 736. Allied to preceding ; seg- 
ments 2 and 3 of abdomen with a transverse edge ; $ with a triangular va- 
ginal valve. Sp. Z. eryth'cea (Drury), sei'vilia (Drury), sangumolenta (Burm.), 
and inquinata (Ramb.). 
Macrodiplax, g. n., Brauer, I c. pp. 366 & 737. Allied to preceding ; pro- 
thoracic lobes of equal size ; wings widely netted, sectores arculi shortly 
pedunculate, superior sector trianguli but slightly curved; vaginal valve 
triangular. Sp. Diplax coi'a (Kaup), paucinerris (Hag. MS.). 
Urothe^nis, g. n., Brauer, 1. c. pp. 176, 366, & 737. Allied to preceding; 
antenme thick and long ; sectores arculi sessile, separate at origin ; vaginal 
valve forming a long cylindrical tube. Sp. Z. sanguinea (Burm.), edwardsii 
(Selys), and U. hisignaia^ sp. n., Brauer, 1. t. p. 176, Luzon. 
Nannodiplax, g. n., Brauer, 1. c. pp. 369 & 726. Allied to Nannopliya ; 
cardinal cell in the anterior wings very narrow, the upper sector trianguli 
springing from its hinder angle ; prothorax broadly bilobed behind. Sp. N, 
rubra (Br.), vacua (Hag.). 
Nannodythemis, g. n., Brauer, 1. d. pp. 369 & 726. Allied to Nannophya ; 
cardinal cell in posterior wings rendered quadrangular by the truncation of 
its outer angle ; superior sector trianguli in fore wings springing from the 
outside of the quadrangle. Sp. N. australis (Br.). 
Nannothemis, g. n., Brauer, 1. c. pp. 369 & 726. Allied to preceding ; 
superior sector trianguli in fore wings springing from the hinder angle of the 
quadrangular cardinal cell ; cardinal cell in hind wings triangular. Sp. N. 
