. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. INVESTUiATION OF I^IFK lllSTOUV. 45 THE rUPA. TiiK Pupal Chamber. The pupal c'liaiiil)or or coll is foniiod l)y the fiill-<:;i-own larva. As soon as foetliug is coiuplelcd the larva Ijccoiucs soiucwliat shorter and thicker, makes its way into the ground, and by moans of burrow- ino; and moving the body about, forms the ('haml)or iii wliich to ])upato. The pui)a rests in this cavity (fig. 19) on the dorsum, where it remains until the beetle Description of Pupa. Length 25 mm., width al fb\st abdominal
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. INVESTUiATION OF I^IFK lllSTOUV. 45 THE rUPA. TiiK Pupal Chamber. The pupal c'liaiiil)or or coll is foniiod l)y the fiill-<:;i-own larva. As soon as foetliug is coiuplelcd the larva Ijccoiucs soiucwliat shorter and thicker, makes its way into the ground, and by moans of burrow- ino; and moving the body about, forms the ('haml)or iii wliich to ])upato. The pui)a rests in this cavity (fig. 19) on the dorsum, where it remains until the beetle Description of Pupa. Length 25 mm., width al fb\st abdominal segment 12 mm. Color pale yellow. Head depressed, only a .^mall i)()rtion of the pronotum being visible from above. Dorsal part of thoracic segments smooth, shining. Lateral edges of first abdominal segment rounded be- hind. On the second to sixth segments, inclu- sive, the lateral ! are thickened and dark brown in color, and pro- trude slightly over the stigmata. The forme.' are slightly hollowed out in front and bluntly toothed behind. The segments following are not thickened laterally. A thick brush of brown hairs is present on the dorsal part of the first five abdominal seg- ments, also a smaller one on the eighth segment; sometimes less prominent ones occur on the sixth and seventh segments. Spiracles somewhat protected by lateral brushes. Mouth parts, antennae, wings, and legs folded beneath the head. Hind pair of legs extending to the tip of the abdomen. Wings extending beyond the fourth abdominal segment. WITH THE OF C.\L() SYCOPHANTA. Several experiments have l)eon tried by i-emoving pupae from tlieir natural pupating cavities and ])lacing tlunn in jars or artificially constructed cavities in order to determine whether they can be safely handled in this stage. In a number of cases no disastrous results fol- lowed their removal, and they can be safely troated in this way, provided the artificial cavity in which they are placed remains intac
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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectentomology
