CURRENT NOTES. 



86 



should occur as " secundar5%" " live-history," " alluving," " in- 

 jourious," "Hursley," "pratique" (for "pratiche"), "Girauld," 

 "taid" (for "laid"), &c. Mr. Bouskell is cited for a paper on 

 " Three weeks in the wilds of " ! the locality being left to the imagi- 

 nation of the reader. Bibliography is always a thankless task, but 

 the composition and reduction of one of the two principal records 

 of entomology ought to be more complete and careful than that. 



The ' Zoologischer Jahresbericht ' gives (64) intei- alia, a list 

 of the principal papers on Entomological Anatomy, Bionomics, 

 &c., published during 1905, with brief summaries of some of 

 these. It is useful as being the earliest, but is very incomplete. 



Nos. 69-74 have nothing directly to do with entomology, but 

 the latest maps (70-1 and 74) are, surely, always welcome to 

 entomologists, as well as topographical information on any out- 

 of-the-way country (69, 72, and 74). 



Morgan offers an alternative suggestion (75) to Boveri's 

 theory, and considers that so-called gynandromorphism " may 

 be due to two (or more) spermatozoa entering the same egg, one 

 only fusing with the egg nucleus, and the other not uniting but 

 developing without combining with any parts of the egg nucleus. 

 . . . The products of division of the paired nucleus will account 

 for the female part of the embryo, while the products of the 

 division of the single sperm nucleus will account for the male 

 characters of the other parts." 



Heymons (76) notes that parthenogenesis occurs in some 

 species of Machilis. Thienemann (77) deals with the biology 

 of the pupse of Trichoptera, while Brues (78) discusses certain 

 points in the life-history of Stylopids. 



Carpenter (79) notes that Drosophila is negatively geotropic, 

 positively heliotropic ; mechanical irritation of the fly has a 

 kinetic effect, since it induces locomotion ; the same is true of 

 light. Holmes continues his observations on the reactions of 

 Ranatia to light, dealing also with Notonecta (80). Mjoberg has 

 a note on " mimicry " in the nymphs of Coriscus (Alydus) 

 calcaratus (81), while Green (82) relates the killing of a Millipede 

 by the nymph of Ectrichodia {Physorhynchus) linnai. 



A number of interesting papers on Orthoptera require notice. 

 Kreidl and Kegen deal with the stridulation of Gryllus campestris, 

 having largely used the phonograph in their researches (83) ; 

 Voss discusses (85) at great length the thorax in G. domesticus, 

 with its appendages, and, after treating of the comparative anatomy 

 and mechanism, compares the Orthoptera with other insect orders. 

 Hancock deals with the stridulation, oviposition, and a meta- 

 thoracic secretory organ (86) in Gilcanthus fasciatus. Eohler dis- 

 courses on antennal sense-organs in Tryxalis and Miisca (84). 



Marchal notes the parasitizing of Galeruca by a Hymeno- 

 pteron (87), while Von Wagner (88) treats of the genesis and 

 development of socialism in Hymenoptera. 



