ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 23 



nervous system, digestive tract, genitalia, and other structures, and a 

 full description of all but the muscular and tracheal systems. 



Genital Appendages of the Tsetse-Fly.* — W. Wesche describes 

 the relatively large and very complex male genital appendages of 

 Glossina palpalis Des., the host of the germ of sleeping sickness. He 

 compares them carefully with those in other Diptera, e.g. Scatophaga 

 lutaria. 



Dipterous Larvae from Deep Water in Lakes.f — J. Schneider 

 discusses the fauna of deep water in Lake Bieler, with especial reference 

 to the Dipterous larvae. He deals with the larvae of Tampus, Ghironomus, 

 SimuUa, and Gorethra, and refers also to other constituents of the fauna, 

 such as Gandona studeri, Pisidium, Limnodrilus, and the like. 



Trichoptera Pupse.J— A. Thienemann gives an account of the 

 morphological features and their significance in pupal life, the changes 

 taking place during the same, and the transformation to the imaginal 

 state. Only one or two points can be quoted. Histolysis and histo- 

 genesis are naturally effected, while at the same time there is no such 

 thing as outer rest. Constant swinging of the abdominal segments takes 

 place, this being necessary for breathing purposes. The result is the 

 renewal of the water with its dissolved oxygen in the pupal case. 

 Various structural adaptations in the abdomen are described, such as 

 the " lateral line " and the cleansing apparatus which averts the danger 

 of impure particles entering during these movements. Some have a 

 pupa case which is closed on all sides, and gas exchanges are effected by 

 osmosis through the walls. In these cases the vitality is lowered ; the 

 temperature of the water (mountain streams) keeps down the exchanges 

 of material, including oxygen. 



Scale-insect of Rose.§ — T. D. A. Cockerell describes from twigs of 

 the wild rose (Rosa) at Coulter, Colorado, a new Coccid, Pulvinaria 

 coulteri sp. n. In the size of its antennae on the one hand, and size of 

 scale and ovisac on the other, it resembles P. aurantii and P. amygdali. 

 From this last, however, it differs in the character of the skin, the 

 second antennary joint, anterior femur, and anterior tarsus. 



Two New Cynipid 6alls.|| — E. Graeffe found near Trieste a gall 

 which J. J. Kieffer has diagnosed as new, namely, Cynips tergestensis 

 on Quercus robur. Graeffe describes another new form from Greece, 

 viz. G. moreoz on Quercus cerris. 



Monograph on Aphis ribis.1T — J. H. L. Flogel gives a full account 

 of this currant aphis, taking account of twenty-one different stages 

 from the winter-egg onwards, and discussing not only its structure and 

 life-history, but its habits and economic importance as well. His 



* Journ. Quekett Micr. Club, 1905, pp. 233-8 (1 pi. and 1 fig.), 

 t MT. Nat. Ges. Bern, Nos. 1565-90 (1905) pp. 165-95 (1 pi.). 

 t Zool. Jahrb. Abt. Syst., xxii. (1905) pp. 489-574 (5 pis.). 

 § Zool. Anzeig., xxix. (1905) pp. 514-15. 

 || Verb. Zool. Bot. Ges. Wien, lv. (1905) pp. 370-3 (2 figs.). 

 i Zeitschr. wiss. Insect., i. (n.s.) 1905, pp. 49-63, 97-106, 145-55, 209-15, 233-7 

 (27 figs.). 



