ORTIIOPTERA. 677 
Includes ilic synopsis of the genus Argia^ to ^vliich Selys re- 
fers 50 species. 
[Thysanura.) 
Laboulbene, a. Recherches sur VAnurida maritima, Insecte 
Thysanoure de la famille dcs Podurides. Ann. Soc. Ent. 
Er. 4® ser. tome iv. pp. 705-720, pi. 11 : May 24, 1865. 
IIaliday, a. H. On Dicelluray a new genus of Insects belonging 
to the stirps Thysanura, in the order Neuroptera. Proc. 
Linn. Soc. yoI. viii. pp. 162-163 : December 5, 1865. 
This paper evidently relates to the Insect described h^^ Hali- 
day under the name of lapyoo, as noticed in the Record ^ for 
1864 (pp. 568-569). It is here mentioned as Dicellura solifuga, 
and as forming, with Campodea, the family Dicelluridce. 
Hermann, Otto. Weitere Beobachtungen iiber Podura. Verb, 
zool.-bot. Gcsellsch. Wien, xv. pp. 485-490. 
{Anatomical paper ^ 
Mulder, Claas. Outleedkuiidige Aanteekening over Macro- 
lyristes imperator, Voll., vergeleeken met eenige andere 
Regtvleugeligen. Tijdschrift voor Entomologie, 1865, 
pp. 110-121, plates 8 & 9. 
Contains a detailed anatomy of the large species of Locustidre 
described by Vollenhoven under the name of Macrolyristes im- 
perator, compared with that of various other forms of saltatorial 
Orthoptera, such as Bphippiger, ConocepJialus, Gryllotalpa, (Edi- 
poda, Pseudophyllus, Megalodon, &c. 
Thysanura. 
Laboiilbene has published (Ann. Soc. Ent. Fr. 4® s4r. tomeiv. pp. 706-720, 
pi. 11) a full and very interesting description of the external structnre, in- 
ternal anatomy, habits, and development of Achorides maritimus (Gu^r.), 
which he regards as the type of a new genus, Aniirida. The insect is very 
common between tide-marks at several points on the north coast of France. 
Otto Hermann (SitzAingsber. zool.-bot. Ges. in Wien, xv. p. 25) records 
the occurrence near llermannstadt of great quantities of a species of Podura on 
the surface of the melting snow on 9th March 1865. The insects were so 
numerous and so uniformly distributed over a considerable surface that the 
snow looked as if sprinkled with gunpowd(U-. ITcrmnnn Avas unable to 
determine the species. 
Hermann (Verh. zool.-bot. Gesellsch. in Wien, xv. pp. 486-490) reports 
further on the habits of this species of Podura. On the melting of the snow 
the Podura was found in great quantities lying on the surface of the water, 
which was covered by a tenacious film, probably a secretion of the insects. 
During this period the Podurce are awaiting a change of skin, and this and 
copulation took place towards the end of March, when the insects were to be 
found hopping about upon new fallen snow. On the 26th April a new gene- 
