 | Botany - 1889 - 344 pages
...black, and contain from 20 to 30 hairs in each. Amongst the hairs in the tufts are several protuding tubular spinnerets, having on the outer end a kind...these, being very fragile, are often irregular or absent. During gestation thick, short, cottony processes form at the edge of the thorax, seemingly... | |
 | Henry Tryon - Agricultural pests - 1889 - 270 pages
...arranged in tufts somewhat closely set ; the tufts are black and contain from twenty to thirty hair^ in each. Amongst the hairs in the tufts are several...tubular spinnerets, having on the outer end a kind of multi-locular ring or crown ; from these proceed cylindrical, glassy, straight tubes as long as the... | |
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... hairs in each. Amongst the hairs in the tufts are several protruding tubular spinnerets, having on the outer end a kind of multiglobular ring or crown ; from these proceed cylindrical, glassy, straight tubes as long as the tufts of hair. Long, fine,... 