ZOOLOGY AND BOTANY, .MICROSCOPY, ETC. 571 



maxillae. Jacobson also found another Dipteron, named by de Meijere 

 Prosaetomilichia myrmecophila g. etsp.n., behaving- in a similar way to the 

 same ant, while yet another, P. brevirostris, tapped another ant, Doli- 

 choderus bituberculatus Mayr. Both of these species touched the tip of 

 the abdomen with their proboscis. 



Piophila Larvae in Cheese.* — G. Alessandrini has made experi- 

 ments on dogs by giving them abundance of the Piophilalaxvsd, which 

 some people like in their cheese. The larvae can pass through the gut 

 of man and dog without being affected. They are extraordinarily tough, 

 able to survive sixteen hours in 70 p.c. alcohol, thirty hours in petro- 

 leum. " They do some damage to the wall of the intestine by working 

 their oral hooks and the papillae on their ventral surface. 



Structure and Habits of Claviger testaceus.j — E. Kruger gives 

 an interesting account of this beetle, which lives with ants, and is patted 

 and licked by them for the sake of an exudation. The glands which 

 secrete this are described. There are two different sets of them. There 

 are also odoriferous glands, which Wasmann discovered. The modifica- 

 tions of the mouth-parts are discussed, such as the simplification of the 

 mandibles. The reproductive system is also described. 



Rat-fleas4 — J- Const. Gauthier and A. Raybaud have proved by 

 direct observation that the rat-fleas, Cercttophyllus fasciatus and Cteno- 

 psylla musculi can bite man and can thrive on human blood. They also 

 show that the bacillus of Yersin may survive for a long time in hiber- 

 nating fleas (C . fasciatus) at a low temperature. 



Roumanian Blood-sucking Diptera.§ — N. Leon reports the unwel- 

 come presence in Roumania of Phlebotomies papatasii, one of the 

 Psychodidae, whose bite causes a fever in dogs. 



Structure of Trigonalys hahni. || — E. Bugnion has made a study of 

 this rare parasite of wasps, describing the structure of the abdomen, the 

 alimentary canal, the mouth-parts, and the genital organs. He directs 

 attention to the " tyloides " — peculiar sensory structures borne on the 

 antennae of the male. They have been described in Ichneumonids by 

 R. du Buysson, and are probably olfactory. 



Study of an Ephemerid.1T — H. Drenkelfort has made a detailed 

 study of the habits, life-history, and structure of a May-fly, Si/pMurus 

 lacustris Eaton. 



Development of Plasmatidse.** — Johann Hammerschmidt has 

 studied this in Dixippus morosus Br. with special reference to the origin 

 of the mid-gut epithelium. It begins in yolk-cells, which form a 

 primary endoderm, and lie like an epithelium marking the outer 



* Arch. Parasitol., xiii. (1909) pp. 337-82 (33 figs.). See also Zool. Zentralbl., 

 xvii. (1910) pp. 247-8. 



t Zeitschr. wiss. Zool., xcv.(1910) pp. 327-81 (2 pis. and 33 figs.). 

 % C.R Soc. Biol. Paris, lxviii. (1910) pp. 941-4. 

 § Centralbl. Bakfc. Parasitenk., liv. (1910) pp. 521-3 (1 fig.). 

 I! MT. Schweiz. Entomolog. Ges., xii. (1910) pp. 14-20 (4 pis.). 

 f Zool. Jahrb., xxix. (1910) pp. 527-617 (3 pis.). 



Zeitschr. wiss. Zool., xcv. (1910) pp. 221-42 (2 pis.). 



2 Q 2 



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