The cherry leaf-beetle : a periodically important enemy of cherries . Fig. 4.—The cherry leaf-beetle:Full grown larva. Much en-larged. (Original.) s BULLETIN 352, TJ. S. DEPARTMENT OF AGEICULTUEE. Second instar.—Immediately after the first molt the second instar is about 3 , and at full growth mm. long. The head is mm. and the ninth abdominalsegment mm. broad. (Fig 6, b.) Third instar.—The newly molted larva of the third instar is mm. long with thehead mm. and the ninth segment mm. broad. At full growth (rig. 4) it is7 mm. long and the measurements of head and
The cherry leaf-beetle : a periodically important enemy of cherries . Fig. 4.—The cherry leaf-beetle:Full grown larva. Much en-larged. (Original.) s BULLETIN 352, TJ. S. DEPARTMENT OF AGEICULTUEE. Second instar.—Immediately after the first molt the second instar is about 3 , and at full growth mm. long. The head is mm. and the ninth abdominalsegment mm. broad. (Fig 6, b.) Third instar.—The newly molted larva of the third instar is mm. long with thehead mm. and the ninth segment mm. broad. At full growth (rig. 4) it is7 mm. long and the measurements of head and caudal seg-ment are unchanged. (Fig. 6, c.) THE The pupa (fig. 7) is slightly less than 5 mm. long, brightyellow, and with a pair of strong curved spines at the apexof the abdomen. The prothorax has the concavity charac-teristic of all stages of the species. The head has a curvedrow of four bristles above, the concave side of the curve tothe front. On the pronotum are two rows of four bristleseach, the anterior one curved to the front and the posterior oneto the rear, and in addition a long bristle on each lateralangle and two near the posterior edge. The scutellum andmetanotum each have a nearly straight row of four of the abdominal segments, except the last, has a pair ofsmall bristles near the middle, and a single long bristle at each lateral angle. Eachfemur has a pair of apical bristles. The spiracles of the first five abdominal seg-ments and of the mesothorax are conspicuous from their black color; the outer ends Fig. 5.—The cherry leaf-beetle: Eighth and ninthabdominal segments, lat-eral view, showing ex-trud
Size: 1816px × 1376px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidcherryleafbeetle352cush
