127 Insccta. 
Titles. 
3500 
Willsdon, Alfred J. A melanic form 
of Aeronycta leporina. Entomologist, 
London, 39, 1900, (97). [Lepidoptera.] 
Wilson, Edmund B[eeclier]. 1. The 
chromosomes in relation to the deter- 
mination of sex in insects. [Abstract.] 
New York, N.Y , Proc. Soc. Exp. Biol. 
Med., 3, 1900, (19-23). 
Wilson, E. B. 2. Studies on chromo- 
somes. 3. The sexual differences of the 
chromosome-groups in Hemiptera, with 
some considerations on the determination 
and inheritance of sex. J. Exp. Zool., 
Baltimore, Md., 3, 1900, (1-40). 
(Wilson, E. B. 3. Studies on 
chromosomes. I. The behaviour of the 
idiochromosomes in Hemiptera. J. Exp. 
Zool.; Baltimore, Md., 2, 1905, (37 1— 
405). [4015].) 
(Wilson, E. B. 4. Studies on 
chromosomes. II. The paired micro- 
chromosomes, idiochromosomes and he- 
terotropic chromosomes in Hemiptera. 
J. Exp. Zool., Baltimore, Md., 2, 1905, 
(507-545, with 4 fig.). [4015].) 
Wingate, W. J. 4. A new species 
of Phora : and four others new to the 
British list. Ent. Mag., London, 42, 
1906, (110-111). [ Diptera .] 
Wingate, W. J. 2. A preliminary 
list of Durham Diptera, with analytical 
tables. Newcastle, Trans. Nat. Hist. 
Soc., N. ser., 2, 1906, (vi -f- 416 -f 7 
leaves additions, pis. i-vii). 
Wiskott, Max. Galgula partita Gn. 
D. ent. Zs. Iris, Berlin, 18, (1905), 1906, 
(328-83.1, 1 Taf.). [Lepidoptera.] 
Witte, Ilernfred. Stratiotes aloidea L 
funneii i Sveriges post-glaciala aflag- 
ringar. [Stratiotes aloides L. found in 
Swedish postglacial strata.] Stockholm, 
Geol. For. Fork., 27, 1905, (432-451). 
Witzgall. Das Buch von der Biene. 
Unter Mitwirkung von Elsasser . . . 
[u. A.] lirsg. v. J. 2. verm. u. verb. 
Aufl. Stuttgart (E. Ulmer), 1 906, (x -f- 
580). 22 cm. Geb. 6,50 M. 
Woglum, R. S. Two new scale 
insects. Canad. Entomol., 38, 1906, 
(73-75). [Coccidae.] 
[Wollmann, L.] BoJitMain>, JL M. 
Oiihcoktj jKajiamHx r b nepenoHuaTo- 
KpUJIEIXTb, COdpaHHbIX'B BT> OKpeCT- 
Hocrax r i> HoaoroBa HoBropoflCK. ry 6 . 
[Verzeichnis der in der Umgebung von 
Bologoje gesammelten Hymenopteren 
( Aculeata ).] St. Peterburg, Ber. SUss- 
wasserst. Naturf. Ges., 2, 1906, (75-77). 
Wolter, Karl. Kreuzungsversuche 
zwischen Abendpfauenauge und Pappel- 
schwarmer. Posen, Zs. I).' Ges. Wiss., 
natw. Abt., 13, 1906, (46-51). [ Lepido- 
ptera .] 
Wood, J. II. On the British species 
of Phora. Part I. Ent. Mag., London, 
42, 1906, (186- 196, 262-266). [Diptera.] 
Woodworth, C[harles] W[illiam]. The 
wing veins of insects. [Cont. Mus. 
Comp. Zool., Harvard Coll., No. 181], 
Berkeley, Univ. Cal. Pub., Tech. Bull. 
Ent., 1,1906, (1-152). 
Wright, William Greenwood. The 
butterflies of the west * coast of the 
United States. Illustrated with 940 
figures in colour-photography of butter- 
flies from the west coast, nearly all of 
which were captured by the author, with 
accurate data for each specimen. With 
coloured figures and descriptions of 
many new species and hew varieties 
now first published. San Francisco 
(Whitaker & Ray Co.), 1905, (257 + vii, 
with front, (port.), col. pi.). 27 cm. 
[Lepidoptera. ] 
WUnscher, Max. Perisomena caceigena 
Kupido. Ent. Jahrb., Leipzig, 15, 1906, 
(112-113). 
Wttst, Val. 1. Gallensammlungen, 
ihre Erzeuger und Preparation. In- 
sektenborse, Leipzig, 23, 1906, (95-96). 
Wttst. 2. Ueber das Auftreten der 
Weidenrosengallmiicke, Ceeidomyia ro- 
saria Lw., in der Sttdpfalz. Prakt. 
Bl. Pflanzenschutz, Stuttgart, 4, 1006,, 
(49-5 1 ) . [Diptera. ] 
Xambeu, P. 1. Organes visuels des 
CoUoptbrea cavern i coles. Paris, Bui. 
soc. ent., 1906, (205-206). 
Xambeu. 2. Moeurs et metamor- 
phoses des especes du genre Magdalinus 
Germar. Naturaliste, Paris, 28, 1906, 
(42-45). [ Coleoptera .] 
Xambeu. 3. Mceurs et metamor- 
phoses des Coleoptbres du groupe des 
Mycetopliagides [error for Crypto- 
phagidea], Naturaliste, Paris, 28, 1906, 
(10i-103, 120, 121). 
Xambeu, 4. Moeurs et metamor- 
phoses du genre Dermeabea LinnA 
