208 



Edwards (F. W.). Notes on the Mosquitos of Madagascar, Mauritius 

 and Reunion. — Bidl. Entom. Res., London, xi, no. 2, September 

 1920, pp. 133-138. 



The examination of a considerable number of mosquitos from 

 Madagascar and the neighbouring French islands has disclosed the 

 existence of several species hitherto unrecorded from these regions, as 

 well as some new data concerning their synonymy. The 28 species 

 of mosquitos hitherto known from the islands are dealt with, and 

 descriptions are given of two new species, Culex verdrillotii and Urano- 

 taenia neireti, both taken at Tananarive, Madagascar. 



Austen (E. E.). Notes on the Nomenclature of certain African 

 Tabanidae (Sub-family Pangoniinae), with Descriptions of a new 

 Genus and new Species. — Bull. Entom. Res., London, xi, no. 2, 

 September 1920, pp. 139-152. 



It was pointed out by Brethes in 1914, that the generic designation 

 Diatomineura, Kond., is a synonym of Osca, Wlk. Erephopsis lata, 

 Gucr., which was designated by Brethes as the genotype, will become 

 0. lata, Guer., and the South African Pangonia harhata, L., and 

 P.ftdvifascia, Wlk., will also be transferred to this genus. The species 

 at present grouped under Diatomineura, sub-genus Corizoneura, 

 cannot be referred to Osca, and therefore Corizoneura is raised to generic 

 rank. 



A new genus, Buplex, is erected and described for certain Ethiopian 

 and Oriental species included under the Corizoneura section of Dia- 

 tomineura, but not congeneric with C. aethiopica, Thunb. 



A key is given to these genera, and descriptions are included of the 

 new species, Buplex fuscinervis and Corizoneura formosa, from the 

 Cape, C. schivetzi from the Belgian Congo, Pangonia discors from 

 Angola, P. lautissima and P. carpenteri from Tanganyika Territory, 

 and Thriambeutes fuscus from Bechuanaland. 



Reichenow (E.). Los Hemococcidios de los Lacertidos. [The 

 Haemococcidia of Lizards.] — Trah. Mus. Nac. Ciencias Nat., 

 Madrid, Ser. Zool. no. 40, 1920, 153 pp., 8 plates, 17 figs. 



A study has been made of a blood parasite, Karyolysus lacertae, 

 occurring in a lizard, Lacerta muralis. This parasite is transmitted by 

 a Gamasid mite, Liponyssus saurarum, Oudms., which is commonly 

 found on lizards in Madrid. The life-cycle of this mite is described. 

 The meal of blood is generally taken at night, when the lizard is asleep. 

 From 24 to 36 hours later the first eggs are laid in a protected spot, 

 and in all, three or four blood- meals may be taken at a few days' interval, 

 oviposition following each time until 50 or 60 eggs have been laid, 

 when the female dies. Five days after oviposition the eggs hatch, 

 so that, at a temperature between 76° and 86° F., development of 

 the mites is very rapid. The development of K. lacertae in the mites, 

 and the infection of the lizard by means of the digestive tube are 

 described. The presence of the parasite seems to be in no way noxious 

 to the life or development of the lizard host. 



