198 



C. territans Walker. The statement that C. territans should mainly be a house 

 mosquito, makes it rather improbable that it should have any great distribution in 

 our country. Most probably it is an American species, which has been found in 

 Italy, at Bonn, Strassburg and Hamburg in recent years. In America it is a very 

 angry bloodsucker according to Felt; in Europe it does not seem to attack man. 



Theobaldia annulata: Martini has found hibernating larvae; he also comes to 

 the result that it only rarely sucks upon man. On an excursion to Amager Mr. 

 Kryger and I found a remarkable mosquito closely related to T. annulata; the white 

 scales were however yellow and the black brown. After this work was sent to the 

 press Mr. Edwards told me that the specimens were identic with specimens adapted 

 to desert conditions and hitherto found in Mesopotamia; it may be named T. annulata 

 var. subochrea Edw. 



I only wish to call attention to the remarkable mosquito fauna which has now 

 been ascertained to exist upon Amager in the immediate vicinity of Copenhagen. 

 In the drying ponds of Amager common we now know that the following speci- 

 mens are hatched: 0. salinellus, 0. detritus, O. rusticus, 0. caspius, 0. curriei, 0, lutes- 

 cens, T. annulata var. subochrea. It will clearly be seen how much this fauna differs 

 from that of the drying forest ponds where O. communis, 0. prodotes, 0. excrucians, 

 0. cantans, 0. diantceus preponderate. 



Ochlerotatus rusticus. After having read the paper of Martini I am not quite 

 sure that two species are not confused in my 0. rusticus Rossi material. It is pos- 

 sible that some of the material from my forest ponds should be referred to 0. fus- 

 culus Zett.; I have hitherto regarded all my larva material as homogeneous; it seems 

 however that there are some small differences in the arrangement of the hairs 

 upon the dorsal side of the sipho; without delaying the publication for almost a 

 year this cannot be cleared up. 



LIST OF LITERATURE 



1912i. Auik, H. A. Note on the Sex of Mosquito Larvae. Ann. Trop. Med. Parasit. Liverpool 



6 p. 4<«. 

 1912a. — The Sex of the Larvae of Mosquitoes and other Experimental Work. Lancet 182 p. 865. 

 1901. Annett H. E. and Dutton .1. E. A Preliminary Note on the Hihernation of Mosquitoes. 



British Med. Journ. p. 1013. 

 1912. Babak, E. Zur Physiologic der Atmung bei Culex. Intern. Revue der ges. Hydrob. 5 p. 81. 

 1916. Bacot, A. Report of the Entomological Investigation undertaken for the Commission 



for the Year. Aug. 1914. Rep. Yellow. Few Commiss. 3 p. 1. 

 1918. Mosquitoes and the Danger of Malaria in England. Essex Naturalist. 18 p. 241. 



