. Cooperative economic insect report. Beneficial insects; Insect pests. been observed. Oviposition occurs from November through the summei months. The young, which hatch in about 30 days, do not mature until the following spring and summer. There appears to be ,y only one generation per year but all stages can be seen in the summer due to the prolonged ovipisition period. In general, the adults predominate in the early summer months and immatures in late summer through autumn and winter. These insects live in galleries, usually constructed in sandy, moist soil. They are omnivorous, feeding on
. Cooperative economic insect report. Beneficial insects; Insect pests. been observed. Oviposition occurs from November through the summei months. The young, which hatch in about 30 days, do not mature until the following spring and summer. There appears to be ,y only one generation per year but all stages can be seen in the summer due to the prolonged ovipisition period. In general, the adults predominate in the early summer months and immatures in late summer through autumn and winter. These insects live in galleries, usually constructed in sandy, moist soil. They are omnivorous, feeding on grass roots, succulent ground level stems, and to a lesser extent, other insects, including members of their own species. They are known to collect germinating wheat and other seeds, storing them in circular chambers 6-12 inches below ground level. Description - The eggs are ovoid, brown, and about mm in length. Newly hatched nymphs are grayish brown and about mm long. The nymphs resemble the adults but are wingless. Before reaching maturity they undergo a series of 6 molts. Adult color ranges from yellowish-brown to black. They are elongate and about 30-35 mm in length. The compound eyes are much reduced and black. The ocelli are oval and conspicuous in size. This species differs from the northern mole cricket (G. hexadoctyla Perty) of the United States by the presence of~a row of dorsal spines, usually ^ four, on the hind tibia, along the inner margin near the apex (occasional specimens of the American species posses one or two spines). G. africana possesses powerful flattened front legs that ' are greatly modified with toothlike projections that are adapted for digging. The front tibiae are shaped like the front foot of a mole, terminated by four strong bladelike projections, referred to as dactyls in literature. This is in contrast to the two on the American species of Scapteriscus. Two of the tarsal segments are bladelike and can be moved across the projections l
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Keywords: ., bookcentury1900, booksubjectbeneficialinsects, booksubjectinsect
