424 On some Odonata of the Subfamily ^sclinina. 



4 cellules in principal triangle, 1 in inner; 2 (rarely 1) supra- 

 trigonals ; no basal subcostal, 3 or 4 in median area; 3 (ab- 

 normally 2) cellules in anal triangle. 



? (slightly immature) . As in male ; abdomen much varied 

 with whitish at the sides of segments 1 to 3 and at the base 

 of segments 4 to 9 (mostly in the form of a spot on each 

 segment), a whitish lunule above on each side of the dorsal 

 crest on segment 2. Appendages long (5^ millim.) , brownish, 

 in the form of flattened blades, narrowed internally at the base 

 and rounded at the apex; tenth ventral segment apically 

 covered with rather dense blackish teeth ; there are mostly 

 four rows of cellules between the branches of the sector, with 

 4 cellules on the margin, the neural details otherwise varying 

 little. 



Length of abdomen, ($ {cum append.) 45, ? 45 millim. ; 

 length of posterior wing, $ 42, ? 45 millim., greatest 

 breadth, ^ 14, $ 15 millim. 



Hah. British Caffraria (S.E. Africa), one male; Transvaal, 

 one female. 



Kemarkable for the subpupillate markings of the top of 

 the front and for the greatly produced genital parts of the 

 second segment of the male. 



I have examined the types of ^. Elliott^ Kirby, from 

 Central Africa, which species is perhaps allied to ^. minus- 

 cula^ but differs in the appendages &c.; it is not possible 

 to define the form of the spot on the top of the front on 

 account of the condition. 



yE. llileyi, Calvert, should belong to another group, being 

 much larger and with humeral as well as antehumeral bands. 



BOYERIA (new name). 



=.FonscolomUa, Selys (1883), preoccupied by Lichteustein in Hemi- 

 ptera (1877). 



The geims remains named in honour of E. L. J. H. Boyer 



de Fonscolombe. 



Plan^SCHNA, gen. nov. 



? . Face short, subglobose. Eyes connected in a rather 

 long space; occiput very small. Thorax short. Abdomen 

 moderate, inflated at the base and afterwards constricted; 

 tenth ventral segment rounded, minutely denticulate. 



Wings rather broad, reticulation moderately dense ; mem- 

 branule large ; pterostigma moderate ; subcosta not continued 

 beyond the nodus ; basal area not reticulated ; supra-trigonal 



