﻿206 PROCEEDINGS OF THE NATIONAL MUSEUM 



mSkVlW SUHTSt OF GUAmLCANAL 

 20 tb Malaria Purvey Unit 



20 Maj 



,. HttBibor Oolleotor late 



LOCATIOlf 0? PLACS SURTEXEJ) 



ISSCHlPffiON OP BBEBBINO PLAOS 



TZFE, SIZE lEPTH OP WAJSH 



COEDlTIOlSfs 



?.'&t9P 1. olsar 2. tarbid 3. colored 4. foul 5. nmalng 



6. stagn&nt 



CoTor - - - 7. grass 8. oana brake 9« Lamna 10. eouzn 11> algao 

 12* brush 13. trisas 14. flotage 15. aoae 



Light IS. full 17. partial 18. deep siad-s 



Location — 13. coconut grovo 20. grassy area 21. cleared Jungle 

 22. second growth jv^la 23. deep jungle 24. swaaip 



BSMAfiKS: 



aPBGlES CAPSUHEC 



Figure 32. — Standard form used in mosquito survey of Guadalcanal, 1943-45. 

 REARING METHODS 



Larval collections were reared in the laboratory as follows : Each 

 collection from a distinct breeding place was given a lot number, and 

 all specimens were labeled with this basic number. Each lot was 

 subdivided into sublots, one sublot for each species that could be 

 recognized. As time permitted, full-grown larvae from each sublot 

 were segregated in individual rearing containers. The cast larval 

 and pupal skins and the adult emerging from the latter were all 

 given the same 2- or 3-digit sublot number ; in each case the first left 

 digit following the lot number represented the general sublot. By 

 this method the results obtained were threefold: (1) Correlation of 

 adults with larval and pupal skins, (2) association of whole larvae 

 and pupae with adults through a comparison with the individual 

 rearings, (3) association of species in a breeding place. It is obvious 

 that adults can be positively associated with their immature stages 

 only by means of such individual rearings or by rearing larvae from 

 eggs laid by a single female (progeny rearings) . Mosquito larvae and 



