THOEELL ON ARANE.T5 OF COLORADO. 487 



being situated somewhat before, and the second somewhat behind, the 

 middle of the back; in the middle of each side is an oblique white line, 

 and the belly has in front of the mamill?e a short white line, or trans- 

 verse spot curved a little backward. 



Length of body 6 millim.; length of cephalothorax 2^, breadtli 1| 

 millim. ; length of abdomen 4^ millim. Length of legs: I 8^, II 7, III 5 J, 

 IY8^ millim.; patella + tibia IV 2a millim. 



A few specimens of this fine species were collected at Mauitoa, Colo., 



June 12. 



Gen. LiTHYPHANTES Thor., 18G9. 



7. L. coroUatus (Linn.). 



Syx. — 1758. — Aranea corollata Linn., Syst. Nat., ed. 10, i, p. G21. 



1778. — Aranea albomaculata De Geer, M6m., vii, p. 257, pi. 15, figs. 2-4. 

 1870. — LitJujphantes corollatits Thor., Rem. on Syu., 1, p. 92. 



A few specimens of this species were captured at Idaho Springs, Colo., 

 July 5, a female in Boulder, Colo., June 29, and a male in Denver, Colo., 

 July 10. A larger variety (female), almost totally black, only marked 

 along the belly with a whitish middle line, crossed by a short line of the 

 same color at its hind extremity, was found at Manitou, Colo., July 12. 



Fam. SCYTODOID^. 

 Subfam. PHOLCIN^. 



Gen. Pholcus Walck.,1805. 



8. Ph. pullulus Hentz. 



Syn. — 18.50. — Theridion ? pullulam Hentz, Descr. and Fig. of tlie Aran, of the 

 U. S.,vi, ii, p. 288, pi. s, fig. 5. 



Pale testaceous ; cephalothorax with a black central band along the 

 pars thoracica, which baud is forked in front ; abdomen not much longer 

 than broad, whitish gray, with black spots, the spots on the back form- 

 ing two longitudinal rows ; tarsal part of the male's palpi with a long, 

 narrow process below, the bulbus drawn out into a strong, compressed 

 beak. — $ ad. Long, circa 2.^- millim. 



2Ias. — Cephalothorax at least as broad as long, inversely orbiculate- 

 cordiform, with a middle furrow, which is forked anteriorly, here form- 

 ing the very deep cephalic expressions ; jiars cephalica high, the clypeus 

 very high and sloping. Sternum large and broad, almost semicircular, 

 truncated in front. Eyes : three larger ones on each side and two small 

 ones in the middle ; the hind row of eyes is nearly straight ; tlie front 

 row strongly curved downward, its eyes being all contiguous, or very 

 nearly so ; the three eyes on each side also nearly touch each 

 other, forming a triangle open inward ; the interval between the 

 posterior central eyes is fully as large as the diameter of one of these 

 eyes, which are evidently larger than the posterior lateral ones, and 

 perhaps a little larger also than the anterior laterals; these latter 

 arc double as large as the anterior central eyes. Mandibles coalesced 



