6 Arachn. 
ARACHNIDA. 
Campbell, F. M. On a probable case of Parthenogenesis in the House 
Spider ( Tegenaria gayoni , Guer.). J. L. S. xvi. pp. 5110-539. 
Details the circumstances which led to the belief that parthenogenesis 
occurred in the instance noted. 
. Tr. Hertford. Soc. ii. pp. 141 & 142. Remarks on the best method 
of searching for and capturing Spiders ; and describes the nest of 
Atypus, and the situation in which to find it. 
Emerton, J. H. New England Spiders of the family Theridiuke. Tr. 
Conn. Ac. vi. pp. 1-86, pis. i.-xxiv. 
Describes 134 species (85 new) from various parts of North America, 
mostly from Eastern Massachusetts. Lists are given of the species (21) 
described by Hentz, also of those (22 in number) considered to be iden- 
tical with European species, and of those described by O. P. Cambridge 
(24) in P. Z. S. 1874-75, as well as of some others (11) worked out by 
Keyserling. Six new genera are characterized. 
Fairmaire, M. L. [and others], Bull. Soc. Ent. Fr. (0) i. p. xciii. On th e 
subject of “ Spider silk” obtained from a Cape of Good Hope Spider. 
The failure of all efforts yet made to make it an article of commerce 
is noted, and the fruitless experiments of Raymondo Maria de 
Nemayer in Italy, in 1777-78, of President Bon, in 1710, of D. Rolt, 
with large American Spiders, and of Dubois, are mentioned. 
Fitch, Edward A. External Parasites of Spiders. Ent. xv. 
pp. 169-175, woodcuts. 
Reviews the literature on the subject. The parasites ( Ichneumoniday ) 
were found on Epeiridcc and Theridiidm. 
Hansen, H. J. Sur les dessins d’Araneides Danoises donnees dans l’ouv- 
rage illustre “ Zoologica Danica ” public par M. le Prof. Schiodte 
avec une subvention de l’Etat de Danemark. Ent. Tidskr. i. 
pp. 169 & 170. 
A selection was exhibited of drawings of Danish Spiders, executed by 
M. Hansen, on an elaborate plan, for the fullest illustration of the 
Spider in respect to its sex, structure, and other peculiarities. The pub- 
lication of the drawings is intended for fasc. 3, Zool. Dan. ( Cf, Zool. 
Rec. xviii. Arachn. p. 7.) 
Holmberg, E. L. Observations a propos du Sous-ordre des Araignees 
Territelaires (Territel arias), specialement du genre Nord-Americain 
Catadysas , Hentz, et delanouvelle famille Mecicohothrioidai , Holmb. 
Bob Ac. Arg. iv. pp. 153-174, pi. i. 
Discusses fully the position of Catadysas , Hentz, and comes to the 
conclusion that it is identical with Zora, and not a Theraphosid at all, its 
position among the latter being based on incorrect observation. A new 
genus Mecicobothrium is characterized and placed in a new family [which 
is probably no more than a sub-family of Theraphosidcc]. 
