ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 389 



INVERTEBRA.TA.^ 



Arthropoda. 

 a. Insecta. 



Scent-organ in Moth-flies. — Jacob Feuerboen (ZooI. Anzeiger, 

 102(t, 51, 279-85, 3 figs.). In certain PsychodidfB (e.g. Ulomyia 

 fith'(/inosa) there are in the males peculiar structures which look like 

 scent-organs. In Ulomyia there is under the tegula of the mesonotum, 

 beside the first stigma, a stalked vesicular body, with a thin-walled 

 folded surface and a papillary plate. No similar structure occurs in 

 Diptera, but it may be analogous with scent-secreting structures in some 

 Lepidoptera. Similarly, in some species of Pericoma there are on the 

 prothorax what look like scent- hairs. It is curious that these tiny 

 insects, which get their name moth-flies because of their moth-like wings 

 and hair.j, should also approach Lepidoptera in having scent-organs. 



J. A. T. 



Tachinid Parasite of Crane-fly. — J. Rennie and Christina H. 

 Sutherland {Parasitology, 1920, 12, 199-211, 1 pi.). Larvae of Bmentes 

 {Siphona) geniculata occur regularly as parasites inside larval forms of 

 Tipula paludosa and other specici'J, The winter months are spent as 

 larvae within the host ; pupation occurs in early spring ; the imagines 

 emerge during April and May ; a second generation appears in June ; 

 after a larval period of about three weeks and a pupal period of about 

 seventeen days the adult flies emerge towards the end of July ; infec- 

 tion of young Tipula larvre probably occurs in autumn. The larva is 

 always attached by a chitinous sheath-like structure to one of the main 

 tracheal trunks of the host. A description is given of the three different 

 stages of larva, and of the bucco-pharyngeal apparatus of the mature 

 larva. J. A. T. 



Hancock's Gland in CEcanthus.— Arata Terao (Annot. Zool. 

 Japon, 1921, 10,41-4, 1 fig.). Hancock described (1905) a remarkable 

 alluring gland in the striped meadow cricket {(Pcanthus fasciatus). 

 Terao finds it in the Japanese CE. longicauda and describes its struc- 

 ture. It is a complex of hypodermal gland cells of two kinds, and of a 

 snb-hypodermal multicellular gland with a spacious central duct. The 

 unicellular hypodermal glands of the second type line two pairs of 

 depressions or fossse, and these depressions hold the secretion. There 

 is also a projecting nipple-like process, perforated by many openings, 

 and thin-w'alled at the top. It may serve as an object to be licked. 



J. A. T. 



New Mosquitoes and Filaria bancrofti. — Shinichiro Yamada 

 {Annat. Zool. Japon, 1921, 10, 45-81, 4 figs.). Descriptions of no 

 fewer than ten new species of the mosquito genus Aedes, found in 

 Japan. The mosquitoes of this genus are not generally able to serve 

 as intermediate hosts of Filaria bancrofti, but the investigator found that 

 Aedes togoi, which is very common in Japan, can act as such. 



J.A.T. 



