 ... succeeding segments, the last is shorter than the third. Abdomen composed of six segments of which the five anterior ones are subequal and somewhat broader than the thorax ; last segment triangular, with rounded apex. Eyes large, compound, supported...  Report of the Commissioner for ... - Page 419by United States Fish Commission - 1879Full view - About this book
 | Entomological Society of America - Entomology - 1909 - 342 pages
...yellowish, brownish or gray color, with a close general resemblance throughout the group. The antennae each are composed of three segments of which the first is longer than the second, and the third longest of all ; the latter segment at its apex bears a long style or arista composed of... | |
 | Botany - 1915 - 562 pages
...rounded apex. Eyes large, compound, supported on peduncles. First antennae in female shorter than head, composed of three segments of which the first is longer...and the third is slightly longer than the second. In the male the first antennae are about two-thirds the length of the body, and are composed of about... | |
 | United States. Bureau of Fisheries - Fish culture - 1880 - 1172 pages
...are distinctly articulated and much less in diameter than the bases of the auteuuulse. The auteunulae are shorter than the head and first thoracic segment, and are composed of three sejrmeiits, of which the first is longer than the other two together, while the second and third are... | |
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