74 Ins. 
INSECTA. 
732. [Westwood, J. 0.] Observations upon species of Curculionidce 
injurious to Cycadece , especially to plants of the genus Zamia. 
Ann. Ent. Belg. xxx, pp. 125-130, pi. v. [ Coleoptera .] 
733. Weyenbeugii, II. Lepidopterologische Fragmenton nagolaten door. 
Tijdschr. Eat. xxix, pp. 111-124, pis. iii & iv. 
Edited by C. T. Snellen* who appends explanatory remarks to the 
descriptions. 
734. . Dipterologische fragmenten. T. c. pp. 125-133. [ Diptera .] 
These posthumous descriptions are edited by Yan der Wulp. 
735. Whitehead, C. Official reports on the Hessian fly. Reprinted. 
J. R. Agric. Soc. (2) xxii, pp. 727-729. 
736. Wielowiejski, H. R. von. Ueber das Blutgewebe der Insekten. 
Z. wiss. Zool. xliii, pp. 512-536. 
A discrimination of the blood tissues of the body cavity of insects. 
These he mentions in his summary, pp. 534 & 535, as being chiefly of 
three kinds — the fat cells or fat bodies, cenocyths, and pericardial cells — 
but there are also others less conspicuous. He describes, pp. 514 & 515, 
the oenocyths in larva of C/uronomus as being four out of a group of five 
very largo colls placed on each sido of each abdominal segment. Ho then 
doscribos those blood-tissues in several of the orders of insects, especially 
in Diptera ( Chironomus , &c.), pp. 513-523; Coleoptera , pp. 523-529 ; and 
llemiptera , Hymenoptera , and Lepidoptera more briefly. There are some 
incidental remarks on the light organs of Lampyridce : in this family the 
oenocyths are found to be much diminished, and replaced by the peculiar 
tissue forming the light organs. Of the development and fuuctions of 
these blood tissues very little is yet known. [Brief Summary, J. R. Micr. 
Soc. (2) vi, p. 964.] 
737. . Observations sur la spermatogenese des Arthropodes. Arch. 
slav. Biol, ii, pp. 28-36. 
738. . Zur Morphologie des Insectenovariums. Zool. Anz. ix, pp. 
132-139. 
Relates to some differences between his earlier observations and thoso 
of Korschelt [c/.. Zool. Rec. xxii, Ins. (172)], and contains important 
statements on the structure and development of the ovary in several 
orders of Inseeta. He classifies the ovaries of insects into three groups, 
based on the structure of their terminal portions. The discussion is 
continued by Korschelt [c/. 370]. 
739. Will, L. Bildungsgeschichte und morphologischer Werth des 
Eies von Nepa cinerea, L., und Notonecta glanca , L. Z. wiss. Zool. 
xli, pp. 311-364, pis. xx-xxii. 
This memoir is discussed by Korschelt, and is to a large extent replaced 
by the author’s later memoir on the development of the egg of Colym- 
betes. 
