PSOCID^R ODONAtA. 
393 
Psocus pediciilaris, Kambur (nec L.), renamed ramhuri, p. 14G (fore-wing 
figured). 
JIet7iipsocns, g. n., id. 1. c. p. 146. Allied to Psocus (restricted), but with 
only 3 cellules on the inner margin. Type P. chlo7’oticus, Hag. (fore-wing 
figured). 
Psocus ^-puTictatm and clarus, Ceylon, malayaTms^ Sula : M'Lachlan, 1. c. 
p. 75, spp. nn. 
Ct^cilius pictipcTiTiis, sp. n., id. 1. c. p. 76, Ceylon. 
Perlid.®. 
Ptcronarc7js reticulataj Burm. M^Lachlan redescribes this insect, and 
figures the abdominal characters of cf Ann. Ent. Belg. xv. p. 51, pi. i. 
figs. 2 & 3. 
PicfAjopteryx dichroa^ id. /. c. p. 62, pi. i. figs. 4 & 6, and T>. co77ipacta, 1. c. 
pi. i. figs. 6 & 7, Siberia : spp. nn. 
Perla Jiamimcta, id. 1. c. p. 64, pi. i. fig. 9, and P. exilis, 1. c. pi. i. fig. 8, 
Siberia : spp. nn. 
EPHEMERIDiE. 
JoLY, N. & E. Etudes sur le pretendu Crustace au sujet duquel 
Latreille a cree le genre Prosopistoma, et qui n^est autre 
qu’un veritable insecte hexapode. Ann. Sci. Nat. (5) xvi. 
no. 7, pp. 1-16, pi. 3. 
This very important article contains an amplification of the views already 
promulgated by E. Joly (cf. Zool. Bee. viii. p. 406), that Latreille’s sup- 
posed genus of branchiopod C7'ustacea^ termed p7'osopisto77ia^ is the immature 
condition of an insect pertaining to this family. The fact that the animals 
breathe by means of tracheae is almost conclusive evidence that they are true 
insects ; but it is difficult to imagine what the imago can be like ; for no 
European species yet discovered offers any analogy in the enormous thoracic 
development. Prosopisto77ia had never been thoroughly accepted by crusta- 
ceologists ; and it now rests with entomologists to follow up the clue given 
by the authors of the above-quoted article, and, which ought not to be diffi- 
cult, to prove the position they assign to the genus with so much show of 
probability. 
Westwood, Proc. Ent. Soc. 1872, p. vi, remarks on types of P7'osopisto77xa 
rom Madagascar. 
Palmy C7\ia sibmica, sp. ri,, M ‘Lachlan, Ann. Ent. Belg, xv. p. 60, pi. i. 
fig. 1 (details), Siberia. 
Odonata. 
Cabot, Louis. The immature state of the Odonata. Part i. 
Subfamily Gomphina. Illust. Cat. Harvard College, no. 5, 
pp. 1-17, pis. i.-iii. 
Selys-Longchamps, E. de. Note sur plusieurs Odonates de 
Madagascar et des iles Mascareignes. R. Z. 1873, 
pp. 176-183. 
