 | Thaddeus William Harris, Massachusetts. Zoological and Botanical Survey - 1841 - 484 páginas
...also on the elm and ash, troops of caterpillars, covered with short spreading tufts of white hairs, with a row of eight black tufts on the back, and two,...slender, black pencils on the fourth and on the tenth ring. The tufts along the top of the back converge on each side, so as to form a kind of ridge or crest... | |
 | Thaddeus William Harris - 1852 - 536 páginas
...also on the elm and ash, troops of caterpillars, covered with short spreading tufts of white hairs, with a row of eight black tufts on the back, and two...slender, black pencils on the fourth and on the tenth ring. The tufts along the top 6f the back converge on each side, so as to form a kind of ridge or crest;... | |
 | Thaddeus William Harris - 1862 - 682 páginas
...black tufts on the back, and two long, slender, black pencils on the fourth and on the tenth ring. The tufts along the top of the back converge on each...and the warts, from which these tufts proceed, are oblong-oval and transverse, while the other warts on the . body are round. The hairs on the fore part... | |
 | Smithsonian Institution - 1862 - 796 páginas
...back, and two long, slender, black pencils on the fourth and on the tenth ring. The tufts along the tap of the back converge on each side, so as to form a...and the warts, from which these tufts proceed, are oblong-oval and transverse, while the other warts on the body are round. The hairs on the forepart... | |
 | Thaddeus William Harris - 1862 - 700 páginas
...ash, troops of caterpillars (Plate VI. Fig. 1), covered with short spreading tufts of white hairs, with a row of eight black tufts on the back, and two...slender, black pencils on the fourth and on the tenth ring. The tufts along the top of the back converge on each side, so as to form a kind of ridge or crest... | |
 | John Gottlieb Morris, Brackenridge Clemens - 1862 - 398 páginas
...the tongue is short, but spirally curved. Larva covered with short spreading tufts of white hairs, with a row of eight black tufts on the back, and two...slender, black pencils on the fourth and on the tenth ring. The tufts along the top of the back converge on each side, so as to form a kind of ridge or crest;... | |
 | Smithsonian Institution - 1862 - 776 páginas
...the tongue is short, but spirally curved. Larva covered with short spreading tufts of white hairs, with a row of eight black tufts on the back, and two...slender, black pencils on the fourth and on the tenth ring. The tufts along the top of the back converge on each side, so as to form a kind of ridge or crest... | |
 | Smithsonian Institution - 1862 - 772 páginas
...the tongue is short, but spirally curved. iMrva covered with short spreading tnfts of white hairs, with a row of eight black tufts on the back, and two...slender, black pencils on the fourth and on the tenth ring. The tufts along the top of the back converge on each side, so as to form a kind of ridge or crest;... | |
 | Thaddeus William Harris - 1862 - 682 páginas
...black tufts on the back, and two long, slender, black pencils on the fourth and on the tenth ring. The tufts along the top of the back converge on each side, so as to form a kind of ridge or OO crest ; and the warts, from which these tufts proceed, are oblong-oval and transverse, while the... | |
 | 1883 - 632 páginas
...with transverse lines between the rings. They are covered with short, spreading tufts of white hair, with a row of eight black tufts on the back, and two long, slender, black pencils on the fourth and tenth rings. The tufts along the back are so close together as to form an apparently unbroken ridge... | |
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Fig. 1), covered with short spreading tufts of white hairs, with a row of eight black tufts on the back, and two long, slender, black pencils on the fourth and on the tenth ring. The tufts along the top of the back converge on each side, so as to form... 
