American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . h there may have beena few threads for the female to hold by. Among Lycosids we have the descrip-tion given by one of the earliest natural-ists, Clerck, the Swedish observer.^ He saw the pairing of Lycosa sac- Pairing ofLycosids. cata about the middle of June, upon a rock exposed to the two sexes approached by jumps, whichbecame fewer and slower as they drew male ended these preliminary stagesof courtship by suddenly leapin
American spiders and their spinningworkA natural history of the orbweaving spiders of the United States, with special regard to their industry and habits . h there may have beena few threads for the female to hold by. Among Lycosids we have the descrip-tion given by one of the earliest natural-ists, Clerck, the Swedish observer.^ He saw the pairing of Lycosa sac- Pairing ofLycosids. cata about the middle of June, upon a rock exposed to the two sexes approached by jumps, whichbecame fewer and slower as they drew male ended these preliminary stagesof courtship by suddenly leaping ujion thefemale. He then passed one of his palps un-der her abdomen, and, holding and inclin-ing her body with the other, inserted firstone and then the other palp. When thepairing was ended, the two sexes separated Fs- 23. The pairing of the Laterigrade 1 Q species, Xysticus trivittata. (From Nature.) and promptly ran away from one another.* Emerton * says of the same family that the male leaps upon the backof the female, and is carried about by her. He reaches down at the sideof her abdomen and inserts his palps into the epigynum underneath. The. 1 Psyche, Vol. V., 1889, page 1G9. 2 Clerck, Aran. Svec, pages 91, 92, pi. 4, Tab. 5, Figs. 1, 2, male. Walck., Apt., I., page 328. * Habits and Structure, page 95. 50 AMERICAN SPIDERS AND THEIR SPINNINGWORK. accuracy of the early observation made by Clerck is thus abundantly con-firmed. The attitude of Lycosa is represented in Fig. 24, which has beendrawn from Nature for this work by Mr. Emerton. Among the Attidee, De Geer has described the pairing of Epiblemumscenicum (Attus scenicus), which occurred upon a wall. Tlie male mounted upon the body of the female, passing over her head towards her. ,,., abdomen, under which he advanced one of his palps. He gently raised the abdomen by upward pressure of his legs, and then ap-plied the extremity of his jjalp to the vulva. An instant afterward the twospiders separated and removed a litt
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectspiders, bookyear1890
