i LETTER OF TRANSMITTAL, 
U. S. DEPARTMENT OF AGRICULTURE, 
BUREAU OF ENTOMOLOGY, 
Washington, D. C., May 1, 1973. 
Str: I have the honor to transmit for publication a paper dealing with the 
yellow-fever mosquito. It is intended to be a companion to Farmers’ Bulletins 
_444 (Remedies and Preventives against Mosquitoes) and 450 (Some Facts 
about Malaria), and should therefore be published in the same series. This 
manuscript has been adapted from a Monograple of the Mosquitoes of North 
and Central America and the West Indies, by L. O. Howard, Harrison G. Dyar, 
and Frederick Knab, published by the Carnegie Institution of Washington. 
Respectfully, 
- L. O. Howarp, 
Entomologist and Chief of Bureau. 
Hon. D. F. Houston, 
Secretary of Agriculture. 
CONTENTS. 
Page. Page. 
How to recognize the yellow-fever iBreedinys trabits= = 8 
MOSOUIULOR == 22 ae Se See 3 Bee laying.) 302k eee 8 
Different names by which it has The .@eeg\2. 3+. 2 eee 8 
Bee IiGH leet. eee 4 Breeding iplacess2.-—— =o eee 9 
Domesticity of the species_______-- 4 Behavior of Varve— "eae 10 
abits, of the dmb s = 2 Ya: Se 5 Food habits of, larve222== ee 10 
Mecdingpinabitges= ===. 5 Duration of early stages_______ 11 
Time ofl Achiyity—2 3-4 4- == 6 Resistance of larve to adverse 
Length of life of adults_______ 6 conditions: 232) 3332 ss2e—5 11 
Influence of temperature —-_~—~ 6 | Geographic distribution____________ i 
Distance of flight o1' 4s" seas i.) Original home. 22222 See 13 
Distribution by artificial means— 7 | Discovery of the relations of this 
Wahine a 2 oes oe 52S 8 mosquito to yellow fever_____-_~_ 13 
Relation of food to egg lay- Subsequent demonstration____-___-_-_~_ 16 
AEDs en 5 RSs Sel eee 8) | Remediesze -U soe ee 16 
ILLUSTRATIONS. | 
Page. Page. 
Fig. 1. Yellow-fever mosquito Fic. 3. Yellow-fever mosquito: Adult 
(Aedes calopus): Adult fe- female, side view__-------_ 5 
pitt (ee ee 3 4. Yellow-fever mosquito: Egg_- 9 
2. Yellow-fever mosquito: Adult 5. Yellow-fever mosquito : Larva_ 10 
Lit (ne a eS 4 6. Yellow-fever mosquito : Pupa— ik 
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