. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. Spiders. 452 AMERICAN SI'IDKRS AND THEIR SPINNINGWORK. states that they are extra-European, many belonging to tropical and tem- perate climes. Dr. G. Mayr thinks the amber ants have few relations with ants of tropical Africa and America. IV. It may be remarked, in this connection, that a comparison of the fossil spiders of Europe with those of Florissant shows, on the whole, a general correspondence between the two fauna. The same famil
. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. Spiders. 452 AMERICAN SI'IDKRS AND THEIR SPINNINGWORK. states that they are extra-European, many belonging to tropical and tem- perate climes. Dr. G. Mayr thinks the amber ants have few relations with ants of tropical Africa and America. IV. It may be remarked, in this connection, that a comparison of the fossil spiders of Europe with those of Florissant shows, on the whole, a general correspondence between the two fauna. The same families are Europe represented in the stratified deposits of Europe and America; and ^" ,. the correspondence holds good, to a considerable extent, as to the amber species. Among Orbweavers this corresi)ondence is not so close, but obtains if we confine the comparison to families, and is true in a measure of the genus Epeira and its near allies. Of the Oeningen spi- ders one is ^n Epeira. From the Browii-coal the Gea of Von Ileydeni is an Epeira also, according to Thorell.^ Of the Amber species,'* Groea Thor. (Gea Koch and Berendt), and Antopia (Menge) are near Epeira; Siga (Menge) is near Zilla. All of these belong with the family Epeirinaj. Androgens (Koch and Ber.) alone probably be- longs to another family, the Uloborina;. Scudder divides the Orbweaving species of Flor- issant among four genera, Epe- PiG. 373. Fia. 874. iâ¢, Tethucus (new), Nephila, Fossil spiders from the amber. (After Berendt.') ^nd Tctragliatha, all EpcirinO). Fia. 372. Gea epeiroidea. Fiu. 373. Andi-ogeus militaris; male. ,,., ,, ,, , ihus all the Orbweavers ni both continents, with the exception of Androgcus (if Androgens be, indeed, an Orbweaver), belong to the .same family Epeirina;, and most of them to Epeira and closely related genera. The above comparison also shows a close resemblance between existing spider fauna and that of the Tertiary both of Europe and America. For example, the Orbweav
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectspiders, bookyear1889
