170 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 



Legs: 1, 2, 4, 3; stout, yellow to orange yellow, with brown annuli at tips of joints; 

 well provided with bristles and hairs, rather sparsely with stout spines; palps yellowish 

 brown, armed as legs ; mandibles conical, little divergent at tips, and, like the face, some- 

 what glossy. 



Abdojien : Globular ovate thickest and widest at the base, arched on dorsum, tapering 

 to distal spinnerets ; in gravid females the width is as great as the length ; surface retic- 

 ulated ; dorsal field without a folium, but with three or four circular longitudinal patches 

 in the median line ; an irregular band of color traverses the margin ; a deeper color marks 

 the side; the apical half of the dorsum is sometimes marked by median lines of j'ellow, 

 and has several black spots on either side tapering V shape to the spinnerets. Venter 

 pattern a triangular patch of yellow, marked with six or eight circular spots symmetrically 

 arranged on either side of the median line. Spinnerets brown ; epigj'num (Figs. 3a, 3b, 3c) 

 has a tolerably long, yellow, curved scapus somewhat wrinkled, of nearly equal length 

 throughout, slightly tapering and rounded at the tip. The parniula is a thin, elevated plate, 

 scrolled at the top, placed between it and the spinnerets ; this is yellow at the base, brown 

 and glossy at the apex and edges, not quite as long as the scapus. 



Male: Figs. 5, 5a. The males of this species appear to be rather scarce; at least it 

 has proved so in my collecting. They are colored and marked substantially like the 

 female. Underneath femur-I is a row of four spines, which appear to be smaller in feraur-II ; 

 tibia-II is not thickened at the apex, but slightly curved, with a row of four strong 

 rounded spines on the apical half; digital bulb globular; radial joint with a strong curved 

 brown spur; cubital joint about the same length as radial; mandibles relatively longer and 

 slighter than in female ; the first two femora rather darker than corresponding joints of 

 female. 



Distribution : Throughout the Eastern and Middle United States, having been collected 

 in New England, New York, Penn.sylvania, Maryland, District of Columbia, Virginia, 

 Georgia, North and South Carolina, Alabama, Florida, Tennessee, and as far to the north 

 and west as Wisconsin. I have no specimens from the Pacific Coast. 



No. 29. Epeira Pegnia W.\ixkenaer. Plate Vll, Figs. 8, 9. 



1837. Epeira P<<7»(a, Walckenaer . . Ins. Apt., ii., p. 80, No. 69;' Abbot, G. S., No. 375. 



1837. Epeira lytera, Walckenaer . . . Ins. Apt., ii., p. 81, No. 70.- 



1865. Epeira globosa, Key-serling . . . Beitr. z. K. d. Orbit. Berh. d. z. b. Ges. Wien, xv., 



p. 820, pi. 18, Figs. 19-21. 



1876. Epeira 'riaraneo, McCooK . . . . Proceed. Acad. Nat. Sci., Phila., p. 201, and Ameri- 

 can Spiders throughout. 



1878. Epeira yhjhom, McCook .... Proceed. Acad. Nat. Sci., Phila., p. 127. 



1884. Epeira triaranea, Emerton . . . N. E. Ep., p. 315, pi. 34, Fig. 9 ; pi. 36, Figs. 6, 7. 



1889. Epeira globosa, Marx Catalogue. 



1892. Epeira /jlolmsa, Keyserling . . . Spinn. Amer. Ep., p. 1.59, tab. 8, Fig. 117. 



Female: Total length, 5 mm.; abdomeii, 4 mm. long, 3 mm. wide; cei)halotliorax, 

 2 mm. long, 1.5 mm. wide. The general colors are yellow and brown for the fore part, and 

 yellow and gray for the abdomen. The abdomen is placed so nearly at right angles to the 

 plane of the cephalothorax as much to shorten the apparent total length. 



Cephalothorax : Corselet rounded at sides, truncated behind, elevated at centre, the 

 grooves indistinct, cephalic suture well marked ; color yellow, with sometimes streaks of 



* No. 375 of Abbot's MSS. drawings is iindoubtedly Epeira globosa Keyserling, and the drawing cor- 

 responds well with Walckenaer's description of Epeira Pegnia. Walckenaer makes two varieties of the 

 species. Abbot's No. 484 seems not a good variety, but rather to be a Theridioid spider. His variety B is 

 Abbot's No. 375, a female. Abbot's No. 389 (Var. B, Walckenaer) is an immature male. Abbot's No. .555 is 

 also a remarkably good drawing of this species, but I have not been able to find it referred to in Walck- 

 enaer's descriptions. 



= This, according to Abbot's drawings, appears to be the same species as the above— a female. 



