anal segment造句

• It is usually found firmly grasping the anal segment of the female.
• Distinct short protuberances extend from the anal segment.
• The posterior spiracles ( on the anal segment ) are usually on two cylindrical lobes.
• Larvae of species in this genus are characterized by an anal segment with retractile posterior prolegs.
• The larva attaches its anal segment to the underside of a leaf and hangs there to pupate.
• Folds and projections on the anal segment of the female apparently complement the structure of the male maxilliped.
• They are black with white patches on the thorax and anal segment and a yellowish stripe along the sides.
• Two long brown spines on the head point forward, while a pair of pinkish prongs project from the anal segment.
• The larva is metapneustic ( with only one pair of spiracles, these on the anal segment of the abdomen ), but often with vestigial lateral spiracles ( rarely apneustic ).
• Antenna, head and thorax black, the collar narrowly crimson; abdomen yellow, shaded above with black; beneath : the thorax with a large lateral patch of crimson, the anal segment prominently buff coloured.
• The abdomen is light brownish buff on the anterior part with a red-brown squarish spot close to the base, becoming quite dark, almost seal-brown, mottled with lighter on the anal segments.
• Antennae, thorax and abdomen above up to the pre-anal segment black; the head, sides of prothorax above, and of the whole of the thorax and abdomen beneath vermilion red; anal segment vermilion red.
• Antennae, thorax and abdomen above up to the pre-anal segment black; the head, sides of prothorax above, and of the whole of the thorax and abdomen beneath vermilion red; anal segment vermilion red.
• Subspecies " K . c . haronica " " Light red; spotted with black, the segments divided by blackish and purple lines; anal segment slightly humped; segments armed with eight longitudinal rows of yellow branched spines; head and legs black.
• Larva green thickly dotted with yellowish white; all the lines yellowish white; anal segment with a yellowish white cross bar; head green, with black spots . It feeds on various trees and shrubs including poplar and willow as well as various " Prunus " species.
• Except for the mouth and anal segments, each segment carries bristle-like hairs called lateral setae used to anchor parts of the body during movement; species may have four pairs of setae on each segment or more than eight sometimes forming a complete circle of setae per segment.
• The head is flat, prognathous, and bears four processes which point backwards and are rough with tubercles, as is the hinder edge of the head between the processes; cheeks also tubercalated; the anal segment bears dorsally two more or less prominent processes, which are longer in the young larva than in the full-grown one.
• Race " undularis " " Elongate, fusiform, setose; green with longitudinal dorsal and lateral yellow lines, and a subdorsal row of yellow elongated spots, which are centred with red and posteriorly edged with blue; head brownish, armed with two erect brownish setose processes; anal segment also with two red slender hindward-projecting processes ."
• Frederic Moore quoted in Bingham, 1907, described it as : " Smooth, thickened from the second to the 5th segment and thence decreasing to the end; with two short subdorsal fleshy spines on the 4th segment, between which is a transverse pale yellow line, two shorter spines also on the 2nd and 3rd and two on the anal segment; colour green, with a longitudinal posterior lateral and lower pale yellowish line ."
• Larva 16-legged, moderate, cylindrical, with rather long scattered whitish hairs; grey; dorsal, subdorsal, lateral, and spiracular lines dark grey, irregular : spots moderate, black; head blackish; second segment whitish-grey, with a blackish divided plate; anal segment blackish : feeds on lichen-dust on fences and rocks, forming a tunnel in a crevice for shelter, and feeding beneath a gallery of web and refuse, in August and September.