THE SYNONOMY OF ANOPHELES, ETC. 157 



on this subject, but am not sure. They are that indefinita is a variety of rossi repre- 

 senting it in the Philippines and Malaya, the true rossi not occuring further east than 

 India and Ceylon.* These specimens, like all I have seen from the Philippines, are 

 indefinita.''' 



Christophers^ says that though Nsm. ludlowi rather closely resembles Nsm. rossi 

 the " eggs of the two species are quite distinct," and Strickland^, while not agreeing 

 with Christophers on this point, after having given the differences in the two larvae, 

 says, " The larva of W?om is therefore quite distinct from that of rossi^"*^ and in a 

 foot-note adds : " As a certain amount of confirmation, we may note that if either 

 ludlowi or rossi had hatched out of one of our breeding bottles, on examining the 

 larvae remaining in the bottles we found in every case, although we need not have 

 expected such favourable evidence, that they were of the type which we now ascribe 

 to the respective species." 



The description of Myzomyia parangensis has been comparatively lately published, 

 but specimens were sent to Edwards for comparison before its publication and his 

 verdict was " This is quite unHke any Anopheline I have seen before. I suppose it 

 comes nearest to ludlowi^ 



The status of these species seems to be that the Anophelines taken in the Pbihppines 

 which closely resemble rossi are indefinita, and that ludlowi and parangensis are 

 estabhshed species. 



When insects are connected with the transmission of disease it is doubly important 

 that the nomenclature should be as unclouded as possible, and it is hoped that the 

 above points may clear some of the confusion which has existed concerning these 

 species. 



* [Concerning this point Mr. Edwards now says : — " This view cannot be strictly main- 

 tained, I have recently examined specimens of the true A. rossi from the Philippines, 

 and of the var. indefinitus from Pusa, Bengal. The latter is chiefly distinguished by 

 the much broader white band at the tip of the female palpi." — Ed.] 



t Christophers, S. R. — " Malaria in the Andamans," Sci. Mem. by Off. of Med. and 

 San. Depts. Govt, of India (New Series), No. 56. 



J Strickland, C. — " The comparative Morphology of the Anophelines Nyssomyzomyia 

 ludlowi, Theob., and Nyssomyzomyia rossi, Giles," Bull. Ent. Research, v, pt. 4, March 

 1915. 



§ [Mr. Strickland has recently written to say that the insect called by him 

 Nyssomyzomyia rossi, Giles, in the paper referred to, is undoubtedly N. rossi var. 

 indefinita, Ludl. — Ed.] 



