748 



THE HEX A POD A 



and bugs perhaps of some of the relapsing fevers. This is a suffi- 

 cient Hst of ills to commend insects and their habits to the serious 

 notice of the medical practitioner of the tropics. 



How to Collect Blood-Susking Files. — -Mr. Austen, of the British Museum. 

 (Natural History), has informed us that he will be pleased to send anyone, 

 on application, a pamphlet giving full directions as to the collection and 

 preservation of blood-sucking flies. 



Classification. — The Hexapoda are classified into the following 

 orders:— ' 

 I. Apt era. 



2. Neuroptera. 



3. Orthoptera. 



4. Mallophaga. 



5. Thysanoptera. 



6. Hemiptera. 



7. Anoplura. 



8. Dipt era. 



9. Lepidoptera. 



10. Hymenoptera. 



11. Siphonaptera. 



12. Coleoptera. 



But the only orders which contain species important as spreaders 

 of disease or as human parasites are:— 



1. Anoplura. 



2. Mallophaga. 



3. Hemiptera. 



4. Diptera. 



5. Siphonaptera. 



6. Coleoptera. 



REFERENCES. 



RECENT LITERATURE. 



Summaries of recent literature are given in : Journal of Royal Microscopical 

 Society, Zoologisches Centralhlatt und Jahreshericht, and the Entomological 

 News of Philadelphia. 



A most useful series is the Bulletins of the United States Department of 

 Agriculture, Bureau of Entomology, Washington; and the Bulletin of Ento- 

 mological Research, London. 



The Annals and Magazine of Natural History, Parasitology, and the Journal 

 of Parasitology, Deutsche Entomologische Zeitschrift, Transactions of the Ento- 

 mological Society of London, Entomologische Zeitung, Entomologische 

 Nachrichten, Entomologists' Annual, Entomologists' Monthly Magazine, Bulletino 

 della Societd Entomologica Italiana, Annates de la SociSte Entomologique de 

 France. Wystsman's ' Genera Insectorum ' is perhaps the most useful; it 

 started in 1902, and is still being reproduced. See also the Tijdschrift voor 

 Entomologie and the Revue Entomologique. 



Hexapoda. 



Alcock, a. (191 i). Entomology for Medical Officers. London. 

 FoLSOM, J. W. (1906). Entomology with Reference- to its Economic Aspects. 

 London. 



Henneguy, L. F. (1904). Les Insectes, Morphologic, Reproduction, Embryo- 

 genie. Paris. 



Howard, L. O. (1901). The Insect Book. New York. 

 Kellogg, V. L. (1905). American Insects. New York. 

 Packard (1889). Guide to the Study of Insects. New York. 

 Packard (1898). Textbook of Entomology. New York and London. 

 Patton and Craig. Entomology. 



Sergent (1909). Les Insectes Piqueurs et Suceurs. Paris. 

 Sharp, D. (1895-1901). Cambridge Natural History, vols. v. and vi. London. 

 Theobald (1899). Textbook of Agricultural Zoology. London. 

 Theobald. Also in Fantham, Stephens, and Theobald's Parasites of Man. 

 London. 



