32 



Zetek (J.). Como evitar la Cria de Larvas de Mosquitos en " Canji- 

 lones,"" Floreros, etc. [A Method of preventing Mosquito 

 Breeding in " Canjilones," Flower- stands, etc.] — Revista La 

 Salle, Panama, November 1919, pp. 45-47. 



In all the gardens of Panama, narrow channels filled with water 

 are dug around flower-beds, etc., to protect plants against ants ; these 

 have the draw-back of providing breeding-places for mosquitos, 

 among which is found the transmitter of yellow fever, Stegomyia 

 fasciata. Oily larvicides have been tried, but heavy rains scatter 

 the oil, which is absorbed by the soil and injures the plants. House- 

 holders are also frequently fined for the presence of mosquito larvae 

 in the water-traps for ants placed around flower-pots, etc., and 

 the larvae are also found in the bowls of holy water in churches. 

 Experiments have demonstrated that a small quantity of camphor 

 or of para-dichlorobenzene (CgH^Cl^) prevents mosquito-breeding; 

 in the channels around flower-beds it should be used in powder form, 

 1 or 2 grams being sufficient for each, and proves less expensive than 

 camphor. In winter this treatment should be carried out once a 

 week, and in summer every 10 days. For flower-stands, etc., the same 

 quantity of the powder, or of "^either powdered or solid camphor 

 should be applied every 15 days or as often as the water-traps are 

 renewed. For use in churches, a little solid camphor is preferable. 



Bonne-Wepster (J.) & Bonne (C). Four New South American 

 Mosquitoes (Diptera, Culicidae).— Insecwfor Inscitiae Menstruus, 

 Washington, D.C., vii, no. 7-9, July-September 1919, pp. 105-113. 



The new species from Surinam here described are : Wyeomyia 

 occulta, of which the larvae were found in a jelly-like mass at the 

 base of leaves of Heliconia ; W. albosquamata, larvae of which were 

 found in Bromeliaceae ; W. fallax and W. splendida found in similar 

 plants. 



Bonne-Wepster (J.) & Bonne (C). Description of the Larvae of 

 Wyeomyia apJiobema, Dyar (Diptera, Culicidae).— /nsecw^or 

 Inscitiae Menstruus, Washington, D.C., vii, no. 7-9, July- 

 September 1919, p. 114. 

 The larvae described were found in Bromeliaceae near Paramaribo, 



Surinam. 



Dyar (H. G.). A Revision of the American Sabethini of the Sabethes 

 Group by the Male Genitalia (Diptera, CulicidsLe).— I nsecutor 

 Inscitiae Menstruus, Washington, D.C., vii, no. 7-9, July- 

 September 1919, pp. 114-142, 1 plate. 

 The species dealt with include: Dinomyia ■proviolans, gen. et sp. n., 



from Panama ; Wyeomyia melanopus, sp. n., and W. roloncetta, sp. n. 



from Panama, bred from a Bromelia growing on a tree. 



A key to the genera is given and also to the species of Miamyia, 



gen. n., Sabethinus, Lutz, Sabethes, R-D., Sabethoides, Theo., Triamyia, 



gen. n., Phomyia, Theo., Heliconiamyia, gen. n., Dendromyia, Theo., 



Wyeomyia, Theo., Decamyia, gen. n., Menolepis, Lutz, Dodecamyia, 



gen. n., and Hystatomyia, gen. n. 



