 | Commissioner of Agriculture - 1869 - 728 páginas
...logs, where they appear to be sunning themselves during the hotter seasons of the year; when disturbed they fold up their legs and antennae, and fall to the ground. The female has a retractile, horny plate at the end of the abdomen, which she uses for the purpose of depositing... | |
 | Washington Government Pritning Office - 1869 - 722 páginas
...logs, where they appear to be sunning themselves during the hotter seasons of the year; when disturbed they fold up their legs and antennae, and fall to the ground. The female has a retractile, horny plate at the end of the abdomen, which she uses for the purpose of depositing... | |
 | 1881 - 284 páginas
...are deposited in fissnres or cracks by means of the extensile end of the body. As Westwood states, " The abdomen appears to be composed of only five segments. The remainder are, however, internal, and constitnte in the female a retractile, corncons conical plate, employed for depositing the eggs in... | |
 | United States Entomological Commission, Alpheus Spring Packard - 1890 - 1060 páginas
...are deposited in fissures or cracks by means of the extensile end of the body. As Westwood states, "The abdomen appears to be composed of only five segments;...in the chinks of the bark of trees within which the larvse feed." Perris, however, says that " the eggs are deposited in the interior of the bark, the... | |
 | United States Entomological Commission, Alpheus Spring Packard - 1890 - 1058 páginas
...are deposited in fissures or cracks by means of the extensile end of the body. As Westwood states, "The abdomen appears to be composed of only five segments;...retractile, corneous, conical plate, employed for depositing theeggs in the chinks of the bark of trees within which the larvae feed." Ferris, however, says that... | |
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... frass" or excrement is colored by the bark, which indicates that the larvae feed both on the bast and bark. As to the number of eggs laid by the female we have no information. The eggs are deposited in fissures or cracks by means of the extensile... 