ARACHNIDA. 
185 
are shown in the figures. The species observed were Nuctohia callophylaj 
Epeira diadema^ and Tetraynatha externa. The author also experimented on 
Tcgenaria civilis and domestica, and on Amaurohia atroxj with negative results. 
Kempelen (Verh. 7.ool.-bot. Ges. in Wien, xvii. pp. 546-547) refers to the 
causes of the difficulty and errors in the determination of Spiders, indicating 
especially the states of preservation of the individuals described by authors, 
and the differences presented by young and old individuals, as mainly con- 
tributing to the confusion which still prevails in many genera. He illustrates 
his remarks by a description of the mature and immature Drassus lapidicola. 
0. Qiebel has published (Zeitschr. ges. Naturw. xxx. pp. 426-443) a no- 
tice of the species of this order collected by him in the summer of 1807 in 
Switzerland. He enumerates 26 species, several of which are described as 
new ,' and of the known species details are given as to variation, habits, &c. 
AussEREn states (Verb, zool.-bot. Ges. in Wien, xvii. pp. 138-139) that 
the number of species of Araneida detected by him in the Tyrol (233) is 
greater than that recorded by Doleschal for the whole Austrian monarchy 
(205). He remarks upon the cliniatal and other physical conditions presented 
by that country as favouring this great number of species. He gives a list 
of the species hitherto detected in the Tyrol, with notes on the localities in 
which they are found. Four new species are described. 
Canestrini has published (Comm, della Flora, Fauna, &c., October 1867) 
a list of the species of this order hitherto detected in the districts of Venice 
and Trent. Their number is 109. 
GouREAu(Insectes nuisiblesa THomme &c.,see ^Hnsecta”) noticesvarioiis 
species of this order which are in some way troublesome or injurious to man 
or his possessions. He describes the general structure and habits of Spiders 
(/. c. pp. 241-246), and the characters and habits of the following species : — 
Tcgenaria domcstica (p. 245), T. civilis (p. 247), Latrodectus malmignatus 
(ibid.), Lycosa tarentula (p. 248), Thomisus citreus (p. 260) as a destroyer of 
Bees. Goureau also notices (p. 262) the Ichneumons and Fossorial Hymeno- 
ptera by which the Spiders are kept in check. 
Mygalid^. 
Lincecum figures Mygale hentzii (Amer. Nat. i. p. 139). — The same author 
publishes a short account of the Tarantula of Texas (Mygale hentzii). Ibid, 
pp. 409-411. 
Cteniza tigrina, L. Koch, Verh. zool.-bot. Ges. in Wien, xvii. p. 882, Syra. 
LyCOSIDuE. 
Ohlert (Aran. Preuss.) admits 9 genera for the Prussian species of this 
family, namely : — Dolomedes, Ocyole, Potamia, Leimonia, Pardosa, Taranttda, 
Trochosaj Arctosa, and Zora. The number of species described is 27. 
Blackwall describes the male of his Lycosa ingens, and notices its dis- 
semination in the Madeiran archipelago. Ann. & Mag. N. II. 3rd ser. xx. p.203. 
JDolomedes Jlaminius, sp. n., L. Koch, Verh. zool.-bot. Ges. in Wien, xvii. 
p. 197, and X>. alhiconms, sp.n., L. Koch, 1. c. p. 199, Queensland. 
Lycosa furcillata, sp. n., L. Koch, 1. c. p. 201, and L. cxcusor, sp. n., L. Koch, 
1. c. p. 202, Queensland. — Lycosa grccnallioe, sp. n., Blackwall, Ann. & Mag. 
N. II. .3rd ser. xix. p. 387, India. 
Trochosa ruhrofasciata, sp. n., Ohlert, I, c. p. 144, Prussia. 
