107 



like 5. agilis, the primary host of Herpetomonas davidi in certain 

 regions and may serve for its development. The absence of 5. agilis 

 among the insects collected at Bologna indicates that there is some 

 other species capable of playing the same role as that observed for 

 the former insect in Portugal. The four species cited above should 

 be examined for possible infection of the salivary glands. 



Pringault (E.). Capture dans les Bouches-du-Rhone de Theohaldia 

 spathipalpis (Rondani). — Bull. Soc. Path. Exot., Paris, xiv, no. 3, 

 9th March 1921, pp. 16v3-164. 



During 1920 numerous breeding-places of Theohaldia longiareolata 

 {spathipalpis) were found near ]\Iarseillcs, this fairly widespread 

 mosquito being considered rare in France. Two individuals captured 

 at Gibraltar were found to be carriers of organisms morphologically 

 identical with Micrococcus melitensis and with Eberth's bacillus ; 

 this discovery, however, has not been subsequently confirmed. This 

 mosquito occurs in the district of Bouches-du-Rhone in almost all 

 ponds, overgrown ditches, drinking-troughs, etc. 



In the laboratory the egg-stage, at a medium temperature for the 

 region, occupied 3 to 4 days, the larval stage 15 to 20 days, and the 

 pupal period 2 or 3 days. From all the pools examined, if a species 

 of Theohaldia occurred, either T. annnlata, Schr., or T. longiareolata, 

 Macq., were found, but never both species from the same pool, though 

 their preferred habitats are identical. 



Seguy (E.). Note sur la Determination de nos Culieides indigenes. — 



Bull. Soc. Path. Exot., Paris, xiv, no. 3, 9th March 1921, pp. 

 179-187. 

 Keys are given to facilitate the identification of the mosquitos 

 known to occur in France. 



Salm (A. J.). Enkele nieuwe bloedzuigende Insekten. [Some new 

 Blood-sucking Insects.] — Genecsk. Tijdschr. Ned.-Indie, Batavia, 

 Ixi, no. 1, 1921, pp. 58-64, 2 plates. 

 Descriptions are given of the following new species : — Ceratopogon 



raphaelis, Culicoides csmoneti, and C. javanicus, all from Java. 



Otten (L.). Dienst der Pestbestrijding. Verslag over het Jaar 1919. 



[Anti-Plague Service. Report for 1919.] — Bijblad Gcneesk. 



Tijdschr. Ned.-Indie, Batavia, Ix, no. 3, 1920, 135 -f xii pp., 



map and charts. [Received 13th April 1921.] 



Observations have confirmed the view that .1f«sco;?.co/or is originally 



an outdoor rat, occupying a secondary position as a house rat in 



comparison with Mus rattus griseiventer, the true house rat. 



Appendices to this report contain information on methods of con- 

 struction and materials the use of which is desirable in securing rat-free 

 dwellings. 



Sergent (Ed.). Etude morphologique du Piroplasma (Gondcria) 

 miitans dwBoeul.^ Ann. Inst. Pasteur, Paris, xxxv, no. 3, March 

 1921, pp. 193-203, 1 plate. 

 A study of Piroplasma {Gonderia) mutans, made from 1,369 speci- 

 mens from Algerian cattle, showed that it occurs in two principal 

 forms, varying in their numerical proportion. One is annular, with 

 (3506) 2 1 



