322 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Protective Coloration.* — V. Brandicourt gives a summary of " an 

 interesting and very detailed " study on the protective coloration of 

 insects by Dr. G. P. Marott.f He deals with, the caterpillars of Papilio 

 podalirius on Prunus spinosa, Parnassius apollo on Carduus nutans, P. 

 mnemosyne on Sedum telephium, and so on. Perhaps the reference, 

 though belated, may be useful. 



/3. Myriopoda. 



Peculiar Sense-organ in Glomeris.J — Herr Hennings describes the 

 fovese laterales capitis, which Leydig observed in 1864 on Glomeris, 

 which have also been known as Tomosvary's organs since their re- 

 description by Tomosvary in 1882. They are horse-shoe-shaped sensory 

 grooves between the antennae and the eyes in species of Glomeris, and 

 occupy a similar position in the blind Typhloglomeris cozca Verh. A 

 sensory cushion of elongated epithelial cells is supported by a chitinous 

 ridge and protected by lateral flanges ; there is a special nerve from the 

 brain ; the whole is probably an organ of chemical sense. 



Palsearctic Myriopoda. § — Dr. Carl Verhoeff, in the course of his 

 investigations on this subject, has come to the Lysiopetalidge, whose 

 morphology, phylogeny, and classification are discussed in the present 

 instalment of his work. As in the Chordeumidas, the copulatory organs 

 are very important in classification. In the Lysiopetalidae one pair of 

 gonopods only is present, and those at each side consist of a gonocoxide 

 and a telopodide. The supporting piece, or tracheal pocket, at either 

 side, and the ventral plate, are also of importance in classification. It 

 is characteristic of the family that the sperm-canal is confined to the 

 femoral part of the telopodide ; the canal begins as a distended pit at 

 the base of the telopodide, and ends on a lateral outgrowth of the 

 femoral region to which the name of ramus canaliculi is given. The 

 family Lysiopetalidae is divided by the author into two sub-families, 

 the Callipodinae and the Lysiopetalinse, according to the condition of 

 ihe supporting pieces, and is associated with the family Polydesmidaa 

 to form the sub-order Proterospermophora, characterised by the presence 

 of a single pair of gonopods, consisting of gonocoxide and teleopodide, 

 the latter being furnished with a sperm-canal and having muscles 

 attached. The paper includes a revision of the Lysiopetalidae, with 

 descriptions of new species. 



5, Arachuida. 



Habits of Ischyropsalis helwigii Pz.|| — Dr. Carl W. Verhoeff has 

 kept specimens of this somewhat rare member of the Qpilioninae, and 

 finds that it appears to feed chiefly upon living Molluscs. Insects, small 

 Arachnids, Crustacea, &c, were rejected, but both shelled and naked 

 snails were eagerly consumed. The powerful jaws are used to crush 

 the shell, and the other peculiarities of structure are adaptations to 

 this predatory life. 



* Bull. Mens. Soc. Linn. Nord Erance, xiii. (1897) received 1900, pp. 282-5. 



t Boll. Naturalista, 15th June and 15th August, 1897. 



J SB. Ges. Nat. Freunde Berlin, 1899, pp. 39-44 (2 figs.). 



§ Zool. Jabrb. (Abt. Syst.), xiii. (1900) pp. 36-70 (3 pis. and 3 text-figs.). 



II Zool. Anzeig.. xxiii. (1900) pp. 106-7. 



