Guide to the study of insects and a treatise on those injurious and beneficial to crops, for the use of colleges, farm-schools, and agriculturists . ICHNEUMONID^. 197. Army-worm, is the Ichneumon paratus, which is blackish,banded and spotted with yellow. The singular genus Grotea^ established b}^ Mr, Cresson, hasa long and narrow thorax (Fig. 130 a), and a very long andpetiolated abdomen (c). We havetaken G. anguina Cresson, the onlyspecies known, from the cells ofCrabro in raspberry stems receivedfrom Mr. Cryptus is a genus of slenderform, with a long, cylindrical abdo-men, which is p
Guide to the study of insects and a treatise on those injurious and beneficial to crops, for the use of colleges, farm-schools, and agriculturists . ICHNEUMONID^. 197. Army-worm, is the Ichneumon paratus, which is blackish,banded and spotted with yellow. The singular genus Grotea^ established b}^ Mr, Cresson, hasa long and narrow thorax (Fig. 130 a), and a very long andpetiolated abdomen (c). We havetaken G. anguina Cresson, the onlyspecies known, from the cells ofCrabro in raspberry stems receivedfrom Mr. Cryptus is a genus of slenderform, with a long, cylindrical abdo-men, which is petiolate. In the fe-male it is oval with an exsertedovipositor. Cresson figures a wing ^S- 129- (Fig. 131) of ornatipennis, a Cuban species, which has thewings difterentl} veined from the other species. Westwoodremarks that in Europe a species of this genus prejs on thelarvjB of the Ptinidce. Pezomachus is usually wingless, and might at first sight read-ily be mistaken for an ant. The body is small, the oval abdo-men petiolate, and the wings, when pres-L ^~~\.A—-Z!!~~^ ent, are very pmall. The species are verynumerous. Gerstrecker suggests thatsome may be
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
