190 



be identical with T. {Cvlex) digitatus, Kond. This species is markedly 

 cannibalistic, the larvae eating not only those of other mosquitos, 

 but even the smaller members of their own species. 



Walden (B. H.)- Mosquito Work in Connecticut during 1917.— 



17th Rept. Connecticut State Entomologist for 1917, Conn. Agric. 

 Expt. Sta., New Haven, Bull. no. 203, 1918, pp. 345-356, 2 plates. 

 [Received 20th August 1918.] 



The State law of 1915 providing for the ehminatioh of mosquito 

 breeding places [see this Review, Ser. B, iv, p. 95] has been amended 

 by an Act passed in 1917, which is given verbatim. The new law 

 provides for a more adequate method of notifying property owners 

 regarding the ditching of their marshes, and provides for assessing 

 benefits and damages in case the owners wish to apply to the Courts. 

 The measure carries an appropriation of £1,000 towards the cost of new 

 work done under this law. The maintenance of the work is placed 

 under the Director of the Experiment Station instead of under the 

 towns as hitherto. Particulars are given of ditching and drainage 

 operations in various localities in the State. 



Feytaud (J.). Sur la Presence des Moustiques dans la Ville de 

 Bordeaux.' — Proces-Verh. Soc. Linn., Bordeaux, Ixx, no. 2, July- 

 December 1917, pp. 63-66. [Received 3rd September 1918.] 



The danger of malaria due to the presence of Anopheles maculipemiis, 

 Mg., and A. bif meatus, L., is particularly great in a town like Bordeaux 

 where the buildings are scattered and cover an area large in proportion 

 to the population. The existence of public and private gardens with 

 their numberless potential breeding places renders antimalarial 

 measures, other than those undertaken by the community as a whole, 

 ineffectual, while the necessity for these, undertaken either voluntarily 

 or compulsorily, is imperative. 



Zammit (T.). Rats and Parasites in Plague Epidemics.— ^rc^u'wm 

 Melitense, Valletta, iii, no. 3-4, March-May 1918, pp. 141-143. 

 [Received 10th September 1918.] 



Laboratory observations on rats, made during a small outbreak of 

 plague in Malta in 1917, showed the most numerous species to be 

 Mus norvegicus (sewer rat), taken chiefly in the neighbourhood of the 

 grand harbour. Other species were M. rattus (black rat), of more 

 recent introduction and found also on the shore, and the variety 

 M. rattus alexandrimis, which is fairly common in the island. 



The fleas associated with these proved to be : — Xenopsylla cheopis 60, 

 Ctenopsylh, musculi 38, Ceratophyllus fasciatus 3, and Ctenocephalus 1, 

 out of 102 fleas taken from M. rattus ; while 180 taken from 

 M. decumanus consisted of X. cheopis 118, Ctenopsylla musculi 49, 

 Ceratophyllus fasciatus 3, and Ctenocephalus 10. 



Several mites were found on the rats, the most common being 

 Laelaps echidninus, which however does not bite man. 



