DESCRIPTION OF GENERA AND SPECIES. 225 



diameter; the distance between MF and SF is a little greater than the area of MF; lateral 

 eyes contingent, on a small tubercle, and are about as large as MR. Front eye row 

 decidedly recurved, rear row slightly recurved or aligned, and longer; the clypeus projects 

 over the mandibles, and is scarcely the width of the diameter of MF. 



Legs: 1, 2=4, 3, as follows: 4.6, 4.1, 4.1, 2.8 mm.; color light yellow, with narrow, dark, 

 apical annuli, somewhat wider on femora ; palps colored and marked as legs, and mandibles 

 retreating; somewhat shorter than the patella, and not quite as thick as femur-I. 



Abdomen : A long ovate, narrowed at the apex into a taillike termination, directed 

 more or less upward, and extending beyond the spinnerets ; it is longer than broad, highly 

 arched on the dorsum, which has two shoulder humi)S. (Fig. 5d.) The field is brown or 

 yellow; the sides are mai-ked with a few blackish stripes; the dorsal pattern somewhat 

 resembles that of C. conica, being an irregular blackish arrow shaped i)atch, connected by a 

 narrow band to an irregular rectangular apical patch of like color; the caudal part is yel- 

 lowish, with blackish borders. The venter has a broad black band which surrounds the spin- 

 nerets, bearing white spots at the base ; the epigynum (Fig. 5e) has a well marked scapus 

 of nearly equal width throughout, but obtusely triangular at the tip ; the portulie are open 

 and rounded, the atriolum arched, and has several small white spots of color on each side. 



M.\le: Fig. 6, 6a, 6b. Total length, 3 mm.; cephalothorax, 1.5 mm. long, middle width 

 1.1 mm., front width 0.5 mm.; abdomen, 1.5 mm. long, 1.2 mm. broad; cephalothorax a 

 little longer than femur-I, not quite one-third longer than broad, in front not quite half as 

 broad as in the middle ; dorisally highly arched. The face at the eye space projects con- 

 siderably over the clypeus, which is rather high ; eyes grouped as in the female ; mouth 

 parts and sternum dark brown, the latter sometimes with traces of yellow spots. The legs 

 have distinct spines on all joints ; tibia-II has no special thickening or clasping spines ; the 

 coxre are without tubercles ; the distal joints are of darker color ; the order of length is 

 1, 2, 4, 3, as follows : 3.9, 3.3, 3.2, 2.1 mm. The abdomen is but little longer than broad, is 

 dorsally highly arched, rounded at I_ioth ends, and ajiparently destitute of the caudal pro- 

 jection which marks the female ; spinnerets distal ; color brownish yellow or gray, with a 

 broad scalloped longitudinal band, and two white spots on the basal half; the venter black, 

 with two round white spots on each side close to the spinnerets. The palpal digit is 

 marked as at Fig. 6b. 



Distribution : I have collected this interesting spider from Canada and the Northern 

 New England States, soutliward along the Atlantic Coast as far as Florida, as well as in 

 Ohio and some of the Western States. Professor Peckham sends it from Wisconsin. Dr. 

 INIarx reports it in Louisiana and Alabama; Dr. Blaisdell sends it from California. It is 

 probably distributed throughout the greater portion of the United States. Its habits are 

 fully given in Vols. I., II. 



No. 77. Cyclosa conica (Pallas). Plate XVII, Figs. 3, 4. 



1772. Aranea conica, Pall.\s Spicil. Zool., 1, 9, p. 48, pi. i., 16. 



1776. Aranea triqnctra, Sulzer .... Abgeck. Gesch., etc., p. 254, xxx., 3. 



1778. Aranea conica, De Geer .... Mem., vii., p. 231, xiii., 16-20. 



1805. Ejjeira conica, Walckenaer . . . Tab. d. Aran., p. 64. 



1837. Ejmra conica, Walckenaer . . . Ins. Apt., ii., p. 138. 



1837. Sin{ja conica, Koch, C Ubers. der Arachn. Syst., i., p. 6. 



1842. Singa conica, Koch, C Archn., xi., p. 145, pi. 392, Figs. 943-945. 



1864. Epeira conica, Blackwall . . . Spid. G. B. & L, ii., p. 363, xxvii., 261. 



1866. Cyclosa conica, Menge Preuss. Spinn., i., p. 74, xii., tab. 18. 



1869. Cyrtojihora conica, Thorell . . . European Spiders, p. 57. 



1870. Cyrlophora conica, Thorell . . . Synonyms, p. 18. 



1874. Cyclosa conica, Simon Arachn. d. France, i., p. 38. 



1884. Cyclosa conica, Emerton' . . . . N. E. Ep., p. 321, xxxiv., 3. 



' Emerton probably refers in his description to tliis species, at least his drawing shows no shoulder 

 humps; but he erroneously confounds it with C. turbinata. 



