ORTHOPTERA. 
449 
Stphlon7trus armatm, Eaton, I, c. p. 6, England and Ireland ; lacustris, 1. c. 
p. 7, Wales. 
llepiagcnia volitans^ Eaton, 1. c., England. 
Odonata. 
Corduliidce. 
De Selys-Longchamps (Compt.-rend. Soc. Ent. Belg. 5Nov. 1870) gives 
an outline of the arrangement of these insects adopted by him in his forth- 
coming “ Synopsis des Cordulines.” He divides them into two “ Legions,” 
Cordiilia fmdi Epoplithalmia. CorduHa comprises three ‘‘genera,” Cordtdia, 
Epithcca, and Cordidephya. The genus Cordulia, again, is separated into two 
“ suhgenera,” He^nicordulia^ Selys, and Cordulia, Leach (restricted) : Epitheca 
comprises three “ suhgenera,” Ejntheca, Charp., Oxygastra, Selys, and Gom- 
phomacromia, Brauer, Epophtholmia is divided into four “genera,” Idionyx, 
Syntliemis, Epophthahnia, and JEsclinosoma. Epophthalmia is again divided 
into two “ suhgenera,” Epophthalmia and Macromia. The terms Ilemicor- 
dulin, Oxygadra, Cordidcph^ja, and ^Eachnoaoma represent new divisions or, 
as the Recorder prefers to term them, genera. Some new species are indi- 
cated, hut not described. 
Cordulia moiallica. M‘Lachlan (Ent. M. M. vii. p. 38) records this species 
as occurring in Inverness-shire, Scotland. 
Gomphidcs. 
Ilypopetalia, g. n., M‘Lachlan, Tr. E. S. 1870, p. 170. Differs from Petalia 
and Phyllopetalia in having three cellules in the discoidal triangles of all the 
wings, and five cellules in the anal triangle of posterior wings. Type II. 
pestilens, sp. n., M‘Lachlan, 1. c. p. 171, Chili. 
Calopterygida. 
Psolodesmus, g. n., M‘Lachlan, Tr. E. S. 1870, p. 165. Pterostigma 
large in all the wings in the male ; basal space empty ; arculus angulate ; 
inferior branch of second sector running obliquely into the inner margin ; all 
the sectors much ramified and curved. Type P. mandarimts, sp. n., 1. c. 
p. 166, Amoy. 
Euphcea compar, sp. n., M'Lachlan, 1. c. p. 167, Amoy. 
Micromerus bisignatiis, sp. n., M'Lachlan, 1. c. p. 168, Celebes. 
Chalcopteryx scmtillans, sp. n., M‘Lachlan, 1. c. p. 169, St. Paulo, Amazons. 
ORTHOPTERA 
By R. MHjachlan, P.L.S., Sec. Ent. Soc. 
Andreozzi, Alfonso. Sulla cavallette ; considerazioni estratto 
dal “ NimLcenLziuen-sciu/^ ossia ‘Trattato completo sulP 
Agricoltura,’ e tradotte letteralmente del Cinese, pp. 1^5 6. 
The Recorder has not seen this work. (See Stefanelli.) 
Brown, Edwin. Remarks on the recent migration to Britain of 
