APPENDIX. 



NOTES ON HABITS AND DISTRIBUTION, WITH LIST OF 

 DESCRIBED SPECIES." 



By A. D. Hopkins, 



In charge of Forest Insect Investigations. 



HABITS. 



So far as known, the species of the family Lyctidae Hve in dead and 

 dry wood of natural growth, in the seasoned sapwood of commercial 

 products, and in the pith of vines and the dried roots of herbaceous 

 plants, but do not infest the wood of coniferous trees. 



Some of the species appear to prefer the dead and dry wood of 

 standing trees, shrubs, and vines under natural conditions, and there- 

 fore are rarely found in the commercial articles; for this reason they 

 are not subject to temporary or permanent removal from the natural 

 range of the species. The other species, which infest commercial 

 products, are subject to wide distribution over the world. 



The following notes relate to species represented in the collections 

 of the United States National Museum and United States Depart- 

 ment of Agriculture, the habits of which have been observed by the 

 writer or recorded in connection with the specimens.^ 



THE GENUS LYCTUS 



Division I. 



SUBDIVISION A. 



Section al. 



L. impressus Comolli. — This species has been found in an umbrella 

 handle, in which it was evidently introduced into Mississippi. 



Section a2. 



Subsection hi. 



L. punctatus (Le C'onte). — Habits not recorded. 



« This portion of the paper was prepared some months after Mr. Kraiis submitted 

 his manuscript and includes data on additional specimens. 



b The primary and secondary divisions, sections, and genus are included under 

 "habits " and "distribution " in order to aid in the comparison of facts concerning 

 allied groups and species. 



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