. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE SMOKY CRANE-FLY. 123 THE LARVA. Larva (fig. 63, a) filiform, 19 mm. in length and 3 mm. in diameter at its widest point when fully extended. General color dirty yellowish brown, dark-. Fig. 61.—The smoky crane-fly : a, ~b, Adult male ; c, thorax and head, lateral aspect; d, antennal joints I-IV ; e, tarsal joint and ungues; /, pygidial segments, terminal aspect; g, end of abdomen, lateral aspect, a, natural size; 6, enlarged; c-g, much enlarged. (Original.) ening to almost black at the extremities. Body compo
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE SMOKY CRANE-FLY. 123 THE LARVA. Larva (fig. 63, a) filiform, 19 mm. in length and 3 mm. in diameter at its widest point when fully extended. General color dirty yellowish brown, dark-. Fig. 61.—The smoky crane-fly : a, ~b, Adult male ; c, thorax and head, lateral aspect; d, antennal joints I-IV ; e, tarsal joint and ungues; /, pygidial segments, terminal aspect; g, end of abdomen, lateral aspect, a, natural size; 6, enlarged; c-g, much enlarged. (Original.) ening to almost black at the extremities. Body composed of 13 segments, the head being about two-thirds incased in the first and entirely retractile within the first two segments. Posterior segment (fig. 63, k) ter- minated by 4 blunt, radially arranged tubercles, between which are 2 large black spiracles ; when contracted the 4 tu- bercles completely conceal the spiracles; on ventral surface of this segment are 4 large and 2 smaller radially arranged pseudopods, posterior to which is the anus (fig. 63, i). Head (fig. 63, c, e) partly chitinized, mm. in length and mm. in width. Genal region extending backward from the mandibles and maxillae as two strongly convex plates, deeply pigmented on their anterior half and fading out to transparent chitin on their posterior margins. These plates are widely separated postero-ventrally to form the pharyngeal foramen; antero-ventrally they are continuous with the mentum. Dorsally they appear to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington : G. P. O.
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