. Cooperative economic insect report. Beneficial insects; Insect pests. - 179 - INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES COTTONSEED BUG (Oxycarenus hyallnlpennis Costa) Economic Importance: This lygaeid attacks the seed of cotton in the field as the bolls open. Weight loss in cottonseed in Egypt has been estimated at to 15 percent, annually. Severe infestations in that country may cause loss of vitality in as much as 3/4 of the seed. Staining of the lint also occurs. Populations build up to high levels in Egypt and the Sudan. Several other African countries report the insect as bein
. Cooperative economic insect report. Beneficial insects; Insect pests. - 179 - INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES COTTONSEED BUG (Oxycarenus hyallnlpennis Costa) Economic Importance: This lygaeid attacks the seed of cotton in the field as the bolls open. Weight loss in cottonseed in Egypt has been estimated at to 15 percent, annually. Severe infestations in that country may cause loss of vitality in as much as 3/4 of the seed. Staining of the lint also occurs. Populations build up to high levels in Egypt and the Sudan. Several other African countries report the insect as being of some economic importance. In Brazil, observations indicate the insect is generally a minor pest of cotton, but it can become a nuisance problem in stored unginned cotton. O. hyalinipennis has been occasionally intercepted at U. S. ports of entry. Distribution: Africa (Tanganyika, Sudan, Algeria, Angola, Belgian Congo, Egypt, French Equatorial Africa, Somali land, Kenya, Nyasaland, Mozambique, Northern Rhodesia, Uganda), Cyprus, Brazil, Burma, Ceylon, India, Indochina, Iraq, General Distribution of Oxycarenus hyalinipennis Hosts: Cotton, abutilon, kenaf, okra, hollyhock, hibiscus and other Malvaceae. Also recorded on Brachychiton populneus. Life History and Habits: In Egypt copulation and oviposition commence when the first cotton bolls open. Eggs are laid usually in the lint, sometimes on green bolls. Each female lays about 20 eggs. Hatching occurs in about 4 days. All stages feed on the seed. The life cycle may be complete in 20 days. There are 3 to 4 generations annually. The insect hibernates in the adult stage in grass and weed or other such shelter. Although the overwintered adults appear in young cotton, breeding does not take place until the bolls are ripe. In heavy infestations, populations build up to enormous numbers. As many as 749 adults and nymphs have been recorded in a single boll. (Lygaeidae, Hemiptera) No. Ill of Series. Please note that thes
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