 | 1874 - 474 pages
...the leaves of the alder, where it makes a horn shaped case of black cylindrical pellets of excrement, arranged regularly in circles, the additions being made around the mouth of the case. The case is'about an inch and a half long; its mouth a quarter of an inch in diameter. Within it is densely... | |
 | 1874 - 512 pages
...the leaves of the alder, where it makes a horn shaped case of black cylindrical pellets of excrement, arranged regularly in circles, the additions being...lined with white silk. The pupa is of the usual color, mahogany brown, the end of the abdomen rounded, with six hains projecting from a transverse supraanal... | |
 | Geological and Geographical Survey of the Territories (U.S.) - 1878 - 208 pages
...to become faint, especially in worn individuals, but I can always detect it. Some lave the teguliu reddish. The species distantly resembles the European...rounded, with six hairs projecting from a transverse supraanal projecting ridge. On each abdominal segment is a dorsal, dusky, transverse stripe, widest... | |
 | Geological and Geographical Survey of the Territories (U.S.) - 1878 - 930 pages
...larva lives iu June and early in July between the leaves of the alder, where it makes a horn-shnped case of black cylindrical pellets of excrements, arranged...rounded, with six hairs projecting from a transverse supraanal projecting ridge. On each abdominal segment is a dorsal, dusky, transverse stripe, widest... | |
 | Geological and Geographical Survey of the Territories (U.S.) - 1878 - 942 pages
...where it makes a horn-shaped case of black cylindrical pellets of excrements, arranged regularly iu circles, the additions being made around the mouth of the case. The case is about an inch and a lialf long ; its mouth a quarter of an inch in diameter. Within, it is densely lined with white silk.... | |
 | United States Entomological Commission - 1890 - 1078 pages
...the leaves of the alder, where it makes a horn-shaped case of black cylindrical pellets of excrement, arranged regularly in circles, the additions being...lined with white silk. The pupa is of the usual color, mahogany brown ; the end of the abdomen rounded, with six hairs projecting from a transverse supra-anal... | |
 | United States Entomological Commission, Alpheus Spring Packard - 1890 - 1058 pages
...the leaves of the alder, whore it makes a horn-shaped case of black cylindrical pellets of excrement, arranged regularly in circles, the additions being...lined with white silk. The pupa is of the usual color, mahogany brown ; the end of the abdomen rounded, with six hairs projecting from a transverse supra-anal... | |
 | American Entomological Society - 1890 - 450 pages
...of the Alder (Alnus), where it makes a horn-sha|>ed case of black cylindrical pellets of excrement, arranged regularly in circles, the additions being...case is about an inch and a half long ; its mouth is a quarter of an inch in diameter; within it is densely lined with white silk. The pupa is of the... | |
 | American Entomological Society - 1890 - 400 pages
...of the Alder (Aluus), where it makes a horn-shaped case of black cylindrical pellets of excrement, arranged regularly in circles, the additions being...The case is about an inch and a half long; its mouth is a quarter of an inch in diameter; within it is densely lined with white silk. The pupa is of the... | |
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July between the leaves of the alder, where it makes a horn-shaped case of black cylindrical pellets of excrements, arranged regularly in circles, the additions being made around the mouth of the case. The case is about an inch and a half long ; its mouth... 