. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Neoscona Spiders • Berman and Levi 473 Distribution. Species of Neoscona are found on all continents. Unfortunately, many have always been placed in Aranetis. The common species found in Europe is Neoscona adianta (Walckenaer), the gen- italia of which are much closer to those of North American species than to the cosmotropical N. nautica. Neoscona 7iautica may be native to the Pacific area, judging by the similar species in this area. Other European species belonging to Neoscona are Epeira cnicifera Lucas, 1839 and E
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Neoscona Spiders • Berman and Levi 473 Distribution. Species of Neoscona are found on all continents. Unfortunately, many have always been placed in Aranetis. The common species found in Europe is Neoscona adianta (Walckenaer), the gen- italia of which are much closer to those of North American species than to the cosmotropical N. nautica. Neoscona 7iautica may be native to the Pacific area, judging by the similar species in this area. Other European species belonging to Neoscona are Epeira cnicifera Lucas, 1839 and E. hyzanthina Pavesi, 1876, both of the Medi- terranean region. Species p^roups. Neoscona nautica, pre- sumably introduced, is the most distinct species occurring in North America. It is the onl)' species in which the male palpus has a minute curved tenninal apophysis; the terminal apophysis of all other species is a flap. Also, the females of N. nmdica have a short triangular epigynum, shorter than that of other species. The three species N. oaxacensis, N. neo- thcis and A^. pratensis are very similar. The pattern characteristic of each of the first two may be similar. The males of all three have a spur on the fourth coxa. Their distribution is allopatric: N. oaxacen- sis is found from California and Texas to South America, N. neotheis is West Indian, N. pratensis is found in the United States, outside the range of N. oaxacensis. Of the remaining North American spe- cies, Neoscona hentzii (east of the Rocky Mountains to Arizona) is the largest ^nd most distinct, having a scape with a spoon- shaped end following a constriction (Figs. 51-53). The male has an S-shaped, short conductor (Fig. 55). The genitalia of N. arahesca (from Canada to Central Amer- ica), N. domicdiorum (eastern United States), N. utahana (south-central states) and N. orizabensis are much alike. How- ever, N. arabesca is smaller than the species sympatric with it and all four have distinct dorsal abdominal p
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
