. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 35 Abdomen shiny, as long as thorax, oblong-ovoid; the second segment occupying nearly one-third the whole surface; segments 4 to (i subeiiual, the third a little shorter; fnnicle joints 2 to 5 subecjual; club nearly as long as tliree preceding joints; joint 1 one-half longer than 2; pile sparse and short, more marked at inetanotal rtm- bria and terminal joints of abdomen than elsewhere. (-olor uniform black, except for pronotal spot, tarsi, middle and hind femoro-tibial knees, front tib;e and apical third of fro
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 35 Abdomen shiny, as long as thorax, oblong-ovoid; the second segment occupying nearly one-third the whole surface; segments 4 to (i subeiiual, the third a little shorter; fnnicle joints 2 to 5 subecjual; club nearly as long as tliree preceding joints; joint 1 one-half longer than 2; pile sparse and short, more marked at inetanotal rtm- bria and terminal joints of abdomen than elsewhere. (-olor uniform black, except for pronotal spot, tarsi, middle and hind femoro-tibial knees, front tib;e and apical third of front femora, whic;h are light honey yellow. Stigmal club about as in I. hageni and 1. afjmdidh, except that its tij) is more rounded instead of scjuarely truncate. "Male.—Length, nmi.; expanse, 5 mm. Punctation rather finer than with female; petiole as long as first abdominal joint, strongly rugose; tlagellum of anten- nte long; pedicel not globose, slightly elongate; joint 1 of fnnicle longest, twice as long as pedicel; joints 2, 8, 4, and 5 each a little shorter than its i)receding joint; not so strongly pedicellate as with /. caUfornicum and /. hrumi, moderately arched above with hairs arranged in two indefinite whorls; clul) separated into two sube(iual pedicellate joints, giving the funicle the appearance of being 6-jointed instead of 5-jointed, as with bromi and mlifornieum; scape short, about as long as pedicel and first funicle joint together; strongly expanded below tip. Coloration like that of the ; (Howard, Tech. Ser. 2, Div. Ent., U. S. Dept. Agr., pp. 18, 14, 1896.) The earlier stages of development are unknown, but they probably differ little from those of allied speeies. Quite likely the same natural enemies prey upon it and the same repressive measure will apply to it as with the preceding species. WEBSTER'S ISOSOMA. [IsosoiiKt irehsteri llowAvd. Fig. 12.) This is in all proba})ility a wheat-infesting species, as I found it in a wheat field
Size: 1890px × 1323px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectentomology, booksubjectinsects, booky
