. Annual report of the Regents. New York State Museum; Science. AQUATIC INSECTS IN THE ADIRONDACKS 569 Case. (PI. S3, fig. 2) Case of irregular pieces of wood placed longitudinally with slender stick extending beyond the posterior end. Length 23 mm. Width 8 mm. Length of stick beyond the case about 19 mm. Larva. (PI. 32, fig. 2) Length 18 mm. Width 4 mm. Head, prothorax and mesothorax reddish brown with a pattern of black spots. Mesothorax has right angled black lines in the posterior corners. Metathorax is yellowish brown. Legs brown, margined with black. Spurs on the tibiae arranged in order
. Annual report of the Regents. New York State Museum; Science. AQUATIC INSECTS IN THE ADIRONDACKS 569 Case. (PI. S3, fig. 2) Case of irregular pieces of wood placed longitudinally with slender stick extending beyond the posterior end. Length 23 mm. Width 8 mm. Length of stick beyond the case about 19 mm. Larva. (PI. 32, fig. 2) Length 18 mm. Width 4 mm. Head, prothorax and mesothorax reddish brown with a pattern of black spots. Mesothorax has right angled black lines in the posterior corners. Metathorax is yellowish brown. Legs brown, margined with black. Spurs on the tibiae arranged in order 2-2-2. Abdomen whitish with red patch on the dorsal side. Respiratory filaments occur with or near the divisions between the abdominal segments. Beginning at the division between ^?L /. ^ J , , . Fig. 39 Dorsal view of end of ab* the iirst and second segments, they occur in domen of larva the following order on the dorsum, o, o, 3, 3, 2, i, o, o, a. On the ventral side their arrangement is o, o, 3, 3, 3, 2, 2, I, o. Anal hooks are on two-jointed prolegs. Pupa. (PI. 33, fig. 5) Length 19 mm. Width 4 mm. Antennae 16 mm. Wings 8 mm. 3 ocelH. Head reddish yellow. Thorax and legs yellow. Spurs on the tibiae arranged in order i, 3, 3. Black spines numerous on the legs. Abdomen white with reddish brown above and yellow beneath. Heavy black fringe along the rear four segments. Fig. 40 Lateral ^ o o o S)domin?i 8^^- Ho<^^s pointing backward on the anterior edge of third, iSrva ^^ *^® fourth, fifth, sixth and seventh segments. Plates with spikes' pointing forward at the posterior margin of fifth segment. Respiratory filaments remain. 3 Halesus species? Plate 32, figures 3 and 6; plate 33, figure 3 Habitat. Larvae and pupae found in Little Clear creek. Occurrence. Larvae quite common throughout the period. Pupae found only during the last four days of the session. Case. (PI. 33, fig. 3) Cylindric case of wood and sand or small stones, often finely colored. Length 24 mm. Width 6 mm. L
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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience
