TITLES. 
Ins. 41 
[Lethierry, L.] [See also Puton, A. (568).] 
399. Leydig, F. Die Hautsinnesorgane der Arthropoden. Zool. Auz. 
ix, pp. 284-291 & 308-314. 
Looking on all the presumed sensitive hair- or seta-like structures as 
modifications of the ordinary external hair, he discusses the struc- 
ture of this, and afterwards the structure and functions of various 
organs of sense. [For summary, vide J. R. Micr. Soc. (2) vi, pp. 962 
& 963.] 
400. Lewis, G-. Anew species of Brathinus. Ent. M. M. xxiii, p. 85. 
[Goleoptcra.~\ 
401. Lichtenstein, J. Monographic des Pucerons du pcuplier. Mont- 
pelier : pp. vi & 42. [. RhynchotaJ ] . 
Recognizes 13 species ; besides giving biological observations on them, 
discusses their synonymy, which is apparently difficult as well as 
extensive. 
402. . Schizoneura ( Artemisia: karschii, Licht.). Ent. Nachr. xii, 
pp. 81-83. \_Rhynchota.~\ 
403. Liebel, R. Die Zoocecidien (Pflanzendeformationen) und ihro 
Erzeuger in Lothringen. Z. Naturw. lix, pp. 531-579. 
A catalogue of galls, accompanied by brief descriptions, arranged 
according to the plants on which they occur. 
404. Liegel, E. Yerzeichuiss der in den Jahrcn 1881-1885 bei Feld- 
kirchen und Gnesau beobachteten Coleopteren. Ein Beitrag zur 
Kaferfauna Karntens. JB. Mus. Karat. xviii, pp. 9-51. 
405. List, J. H. Ueber die Entstehung der Dotter- und Eizellen bei 
Orthezia cataphracta, Shaw. Biol. Centralbl. vi, pp. 485-488. 
406. . Orthezia cataphracta, Shaw, Eine Monographic. Z. wiss. Zool. 
xlv, pp. 1-86, pis. i-vi. [ Rliynchola .] - 
Devoted to the anatomy and histology of the female of this species. 
Discusses specially the integument and its waxy covering, the dorsal and 
ventral aspects, and the chitinous skeleton, muscular and tracheal systems, 
and the parts of the mouth; these latter show important divergencies 
from the description made by Mark of the corresponding parts in O. cha- 
racias, Bose. Next he takes up the alimentary canal, Malpighian vessels, 
salivary glands, nervous system and organs of sense; the dorsal vessel, and 
the sexual structures of the female, the histology of the ovary, the for- 
mation of the yolk-cells, and of the egg-cells ; and the fat-bodies. The 
formation of the yolk-cells he finds to be different from what has 
been described as occurring in other insects. The plates are chiefly 
devoted to histology. [For summary, vide J. R. Micr. Soc. 1887, 
pp. 228 & 229.] 
407. Loew, E. Eine Lippenblume mit Klappvisier als Schutzein. 
richtung gegen Honig- und Pollenraub. Kosmos, xix, pp. 119-122. 
