APPENDIX.


NOTES ON HABITS AND DISTRIBUTION, WITH LIST OF
 DESCRIBED SPECIES.a
 By A. 1). HOPKINs,
 In charge of Forest Insect Inrestigations.
 HABITS.

 So far as known, the species of the family Iyctide live 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 therefore 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 Departniment of Agriculture, the habits of which have been observed by the writer or recorded in connection with the specimens.
 THIE GENUS LYCTUS

 DivIsIo I.
 SUBDIVISION A.
 Si:c oN al.
 L. im pressus ('omolli.- -This species has been found in an umbrella handle, in which it was evidently introduced into Mississippi.
 SECT"ION a2.


 L. puncttatus (1,e ('onte). Ia)its not recorded.
 This portion of the paper was prepared some months after Mr. Kraus submitted his maiiuscript and includes data on additional specimens.
 The primary and sermondary divisions, sections, and( genus are included under habitM and d(list ribut ion in order to aid in the comparison of facts concerning allied groups and species.
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