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 . om-mon in the United States. C. medichwlix Walkenaer has beenused as a vesicant. TheWater spider of Europe,Argyroneta aqnatica Linn.,lives beneath the water,where it makes its nest andcocoon, which is filled withair. The genus Tegenaria hasthe ocelli arranged in twoslightly curved rows, thethird pair of feet are shorterthan the others, and the ab-domen is oval. The speciesare sedentary, making in Fig. IKS. obscure corners a horizontal web, at the
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 . om-mon in the United States. C. medichwlix Walkenaer has beenused as a vesicant. TheWater spider of Europe,Argyroneta aqnatica Linn.,lives beneath the water,where it makes its nest andcocoon, which is filled withair. The genus Tegenaria hasthe ocelli arranged in twoslightly curved rows, thethird pair of feet are shorterthan the others, and the ab-domen is oval. The speciesare sedentary, making in Fig. IKS. obscure corners a horizontal web, at the upper part of whichis a tubular habitation, where the spider remains motionlesstill some insect be entangled in the threads. (Hentz.)T. medlcinalis Hentz is pale brown, turning to bluish black ;cephalothorax with a blackish band on each side ; abdomenvaried with black, or plumbeous and brown ; feet varied withblackish. It is found in every cellar or dark place in thecountry. For some time the use of its web as a narcotic, incases of fever, was recommended by many physicians.(Hentz.) Fig. 628 (enlarged) represents T. atrica, a Filistata is a closely allied genus. F. hibernal it* Ilentz (;.)!) ARANEINA. makes a tubular habitation of silk in crevices on old walls 01rocks, throwing out an irregular web which is spread on thewall or stone around the aperture. ... In walking it usesthe palpi like feet, and these organs are very long, particularlyin the male. According to Hentz it is found in South Caro-lina and Alabama. The two genera Pholcus and Theridion belong to Latreillesgroup, Insequitelse, comprising those forms in which thefirst pair of limbs are usually the longest. In Pltolcux the legsare very long and slender. According to Hentz the speciesare sedentary, making in dark corners a very loose web ofslender threads, crossed in all directions. The eggs are col-lected together without a silk covering, which the mother car-ries with her cheliceres (maxillary pa
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects
