TITLES. 
Ins. 1 7 
130. Grzegorzek, A. Beitrag zur Dipteren-Fauna G-aliziens, Kaiser- 
thum Oesterreicli. B. E. Z. xxix. pp. 49-79. 
This contribution consists of an analytical table of the species of the 
genus Sciara , to the number of 240, several novelties being included. 
131. -. Neue Mycetophiliden. [Diptera.] T. c. pp. 199-206, pi. ix.A. 
132. Hagen, H. A. Die devonischen Insecten. Zool. Anz. viii. pp. 
296-301. 
133. Haase, Erich. Zur Kenntniss der sexuellen Charactere bei 
Schmetterlingen. [ Lepidoptera .] Z. Ent. Bresl. (2) x. pp. 36-43. 
Relates chiefly to the structure, functions, and modifications of the 
tibial spur. He considers that by means of a secretion transferred to 
the antennae these organs are assisted in their olfactory function. [Cf. 
Mik, Wien. ent. Z. iv. p. 255.] 
134. Hamilton, J. Hibernation of Coleoptera. Canad. Ent. xvii. pp. 
35-38. 
Records immunity of Coleoptera from seven days' immersion by a flood. 
He doubts the correctness of the accepted view that larvae can be frozen 
without injury, “ having never succeeded in reviving any in which there 
was absolute certainty of the tissues being frozen.” 
135. Hammond, A. Chircnomus prasinus. J. Micr. & Nat. Sci. iv. 
pp. 65-74 & 165-172, pis. ix. & x. \_Diptera.~] 
Contains much anatomical and histological information, as w r ell as 
figures of the metamorphoses. 
136. '"Harris, W. H. The Honey-Bee : Its Nature, Homes, and Pro¬ 
ducts. London: 1884. [Of. Nature, xxxi. p. 2.] 
137. Henshaw, S. List of the Coleoptera of America North of Mexico. 
Published by the American Entomological Society. 
A useful work of about 170 pp., comprising names of 9238 species. 
Heylaerts, F. [See Romanoff.] 
138. Hickson, S. J. The Eye and Optic Tract of Insects. Q. J. Micr. 
Sci. xxv. pp. 215-251, pis. xv.-xvii. 
A memoir devoted to minute anatomy. The headings of* the sections 
give some idea of the paper, and are as follows :—1, The eye and optic 
tract of Musca vomitoria ; 2, The minute anatomy of the optic tract of 
various insects compared (. Periplaneta , Nepa , Agrion, Noctua , Sphinx, Bee 
and Wasp, yEschna, Eristalis) ; 3, Further remarks upon the histology of 
the optic tract ; 4, The comparative anatomy of the ommateum of the 
various orders of insects ; 5, The distribution of tracheae to the optic 
tract and ommateum ; 6, historical and critical [in this the received vierv 
of Max Schultze and Grenadier that the re tin aim are the end organs of 
the optic nerves is maintained, and Lowne’s view that the true membrane 
is situated behind the basilar membrane declared incorrect] ; 7, Some 
general considerations upon the eye and optic tract of insects; 8, 
Methods ; 9, Summary. \Cf. J. R. Micr. Soc. (2) v. p. 633.] 
1885. [vol. xxii.] 
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