DESCRIPTION OF GENERA AND SPECIES. 239 



spines and hairs on the feet are less strongly expressed, and (4) the fuscous annuli on the 

 femora and the apices of joints are less deeply colored, so that the feet are rather a pale 

 testaceous ; the male is easily distinguished by the remarkable length of the palps. From 

 Z. montana, Z. atrica differs by its greater size; the palps of the two males are differently 

 constructed, and there is also a marked difference in the sexual organs of the females. 



Distribution: The only specimens of this species in my collection are from AVood's 

 Holl and Annisquam, Massachusetts. Dr. IVIarx reports it as received from California. It is 

 a well distributed European species, and has probably been imported into the United States. 



No. 91. Zilla montana C. Koch. Plate XVIII, Figs. 3, 4. 



1832. EpHm calophyUa, Sundevall . . Svenska Spindlarnes Beskrifning, p. 253. (Va- 

 riety b.) 



1834. Zilla montana, Koch, C Herr-Schaeff. Deutschl. Ins., 12-5, 19. 



1839. Zilla montana, Koch, C Die Arach., vi., p. 146, Figs. 536, 537. 



1851. Epeira montana, Westking . . . Forteckn., etc., p. 35. 



1856. Zilla x-notata, Thokbll Recensio Critica, p. 26. 



1858. Zilla montana, Thobell Om Clercks Origin. Spindelsn., p. 148. 



1861. Zilla montana, Westring .... Aranese SvecicEe, p. 75. 



1867. Zilla calophyUa, Menge Preuss. Spinn., i., p. 76, pi. 12, tab. 19. 



1870. Zilla Stroemii, Thorell On European Spiders, p. 235. 



1884. Zilla montana, Emerton N. E. Ep., p. 323, pis. 34, 37. 



1889. Zilla montana, McCooK Amer. Spiders and their Spinningwork. 



1889. Zilla montana, Marx Catalogue Described Aranese. 



Female: Total length, 6.5 mm.; abdomen, 4 mm. long, 3 mm. wide. It resembles 

 Z. x-notata and Z. atrica, but the legs are more strongly annulated, the median annuli 

 being distinctly dark brown upon yellow. 



Cephai.othorax : Strongly marked with brown; corselet grooves and cephalic suture 

 distinct; the head not depressed; the eyes as in Z. x-notata; MF distinctly larger than MR. 

 The clypeus has a height of at least one diameter MF. 



Legs: Abundantly armed with long, yellowish bristles, which stand in rows on the 

 femora, both above and beneath ; the spines are not numerous. The venter has an elon- 

 gated blackish band, flanked on either side by a triangular belt of yellow, which extends 

 to the spinnerets. The epigynum is without a scapus, dark brown or blackish, corneous, and 

 . is simply an opening underneath the atriolum. 



Abdo.men : A sliort oval ; color shining cretaceous or yellowish, with a folium whose 

 margins are marked black within a wide median figure of shining cretaceous. The folium 

 is broad at the base and narrowest towards the apex and the front. 



Male: The male does not diS'er greatly from the female in size; is lighter in color; 

 the legs not so distinctly annulated. The palp is much shorter than that of Z. x-notata. 

 The digital bulb (4a) is prominent, terminated by a sti-ong hook, with a long black fang; 

 the cubital joint short, subtriangular ; the humeral joint but little longer than the culiital; 

 the radial joint the longest of all. The abdomen is marked as in the female, the color 

 shining cretaceous, and the folium outlined in black ; the sides reticulated, cretaceous next 

 the folium, and beyond that a belt of black. The legs are well provided with long yel- 

 lowish spines, with dark bases, which, however, are almost wanting on the femora. Tibia-II 

 has no special clasping organs. 



Dlstribution : This is also a European sjiecies, and is widely distributed from Sweden 

 southward. In this country it has been taken in New York and New England. 



Genus ABBOTIA, new. 



With some hesitation I have separated Ejieira gibberosa of Hentz and E. maculata of 

 Keyserling fi-om Epeira, and established for them a new genus, in recognition of Mr. John 

 Abbot, the earliest worker in the field of American Araneology. The whole general appear- 

 ance of these spiders is different from that of the typical Epeira. In their more dainty 



