Supplement to the New England Spiders. 231 



Pellenes borealis, Banks. 1895. 



Habrocesturn oristatum, Pkm. Attidac of N. A., 1883. (Plate XII, 

 figures 4 to 4 c.) 



The female is 5 — 6 mm. long, the male 4.5 — 5 mm. The 

 female is light gray and brown like the sand, while the male is 

 deep black with white markings. The legs of the male have no 

 peculiar modifications either of the first or third pairs. The mark- 

 ings of the female are very indistinct ; the cephalothorax is varied 

 with white, sometimes suggesting two white lines from the lateral 

 eyes backward. The abdomen has a white line across the front and 

 two pairs of short lines at the sides. Toward the end there are 

 two middle spots, sometimes connected, and the usual two small 

 white spots just in front of the spinnerets. The male has the ce- 

 phalothorax black with long black hairs on the front of the head. 

 The abdomen is black and has the same markings as the female, 

 but much whiter and more distinct. The legs are pale, but the 

 color is darkened by black hairs. The face below the eyes is white 

 in the female, and in the adult male is thinly covered with small 

 white scales, but in the young male before the last moult, this part 

 is bright red, so that it may be mistaken for the young of P. cce- 

 catus, which lives farther south. See Psyche, Journal of Cambridge 

 Ent. Club, Vol. II, p. 32, April, 1904. 



The epigynum has a large oval anterior opening extending back- 

 ward at the sides almost as far as the posterior opening. The 

 palpal organ is oval and has a stout supporter of the tube extend- 

 ing along the inner side and but little narrowed toward the end. 



This spider is very common along sea beaches in the dry grass 

 and rubbish thrown up by the tide. Adults are found most ab- 

 undantly about the first of Ma}', but some of them mature in the 

 late summer as early as the last of August. The red-faced young 

 males are found in the summer and fall, and in spring as late as 

 June. 



Chalcoscirtus montanus. 



Icius montanus, Banks. Can. Ent., 1896. 



The cephalothorax is 1.2 mm. long, the abdomen of the male 

 about the same length, and that of the female longer. The cephalo- 

 thorax is two-thirds as wide as long, a little flattened above and 

 with the sides nearly straight and parallel. The posterior eyes are 

 half as far from the front eyes as they are from each other and 

 the middle eyes are slightly nearer the posterior than the front eyes. 

 The color differs in the sexes, the male being much darker than 



