INSECTA. 
179 
The author briefly refers to observations upon hermaphrodite 
honey-l)ees, especially bearing upon the connexion between ex- 
ternal and internal combinations of male and female characters, 
Weijenuergii, Jr., H. Prodromus en Algemecne Beschouwing 
der fossiele Insekten van Beijeren. Tijdschr. v. Entom. 
xii. pp. 230-248. (Obs. Pp. 230-234 are erroneously printed 
130-134; and pp. 231-234 are reprinted, with some slight 
alterations, with this error uncorrected.) 
Contains a list of 100 fossil Insecta found in the lithographic 
oolite of Solenhofen, and consisting of the following orders and 
species : — Coleoptera, 26 spp. (of which the Elateridm are the 
family best represented) ; Hemiptera, 12 spp. (Heterop. 9, Homo]?. 
3) ; Orthoptera, 10 spp. ; Neuroptera, 42 spp. (whereof 28 belong 
to the Odonata) ; Lepidopteraj 1 sp. (a Sphinw) ; Hymenopteray 
4 spp. ; Diptera, 5 spp. The author adds Arachnida (3 spp.) 
and Myriopoda (1 sp.). References are given to the diflerent 
publications in which these species arc described, and compa- 
risons are made witli the English fossil insects. 
Westwood, J. O. Notice of a new Order of Hexapod Insects. 
Entomologist’s Monthly Magazine, vi. pp. 118, 119 (1 Oct. 
1869). 
The author founds an order, Achreioptera, containing a single 
genus, which he characterizes under the name Platypsyllus y for 
the reception of a species described as V. castorinus. This insect 
is parasitic upon the Canadian beaver, and is oval, flat, possessed 
of maxillae, a labium and four palpi, three-jointed antennae, a 
large prothorax, triangular sciitellum, two short, veinless, cly- 
triform anterior wings (posterior obsolete), and robust spinous 
legs, with five-jointed tarsi and two claws to the apical joints. 
The author appears to have read a paper on the subject of this 
insect before the Ashmolean Society, Oxford, at Michaelmas, 
1868, and to have intended that his description of it should 
appear in the Transactions of that Society ; but the long delay 
attending the publication of those Transactions compelled him 
to send the above notice to the Ent. Monthly Mag., with the 
idea of obtaining priority. In this he is forestalled by Ritsema, 
who read a short description of the same insect on July 31, 1869, 
at a meeting of the Societe Entomologique Neerlandaise, under 
the name of Platypsyllus castoris, and published a notice of it in 
Deyrolle’s '^Petites nouvelles Entomologiques,” No. 6, 15 Sept. 
1869. Ritsema regards the insect as undoubtedly belonging 
to the order Suctoriay Heg., and (Pet. nouv. Ent. No. 10) hesi- 
tates to found even a family [Platypsyllidoi) on this single 
species. 
