THE CANADIAN ENTOMOLOGIST. lUl 



lineatus ; the cephalothorax is the same, tliough perhaps a trifle higher and 

 the dorsal eyes slightly farther apart ; otherwise the structure is like that 

 species. The tibia of the palpus has a short black spine at tip, the tarsus 

 is much narrower than in /. lineatus and the palpal organ quite simple, 

 the lower part is large and projecting, the upper part striate and with a 

 short, stout apical tube : there is on the outer side the outline of a curved 

 tube pointing down toward the tibial spine. One male; Washington, D.C. 



Saitis parviilus, nov. sp. 



Length, 3 mm.; ceph., 1.4 mm. long, 1.05 mm. wide. The eye- 

 r;gion black ; the thoracic part reddish, with two black spots on the pos- 

 terior margin ; the palpi and first legs black, the second legs mostly black; 

 other pairs yellowish, no black spots as in 5. pulex ; the mandibles red- 

 brown ; the sternum yellowish-brown ; the abdomen black above, 

 with a broad white stripe, broadest at the middle, beginning 

 just before the middle it contains five broad black chevrons ; 

 venter yellowish, with a median black spot and two black 

 stripes. Similar to S. pulex, but the cephalothorax is shorter and the 

 eye-region is proportionately broader, the quadrangle being a little nar- 

 rower behind ; the palpus is much smaller, the tibia has not the long, 

 thin projection, nor a broad lobe below, but a moderate, curved black 

 process ; the bulb of palpus has a swollen part not seen in S. pulex. 

 One male from a deep and cold swamp near Ithaca, N. Y. 



Habrocestum bo7'ealis, nov. sp. 



Length, ^.5 mm.; ceph., 3. mm. long, 2. mm. wide. Cephalothorax 



black, in a strong light the thoracic part showing slightly reddish ; the 



sides with white scales, which on the margin form a distinct white line ; 



above anterior row of eyes is a crest of long black hairs ; sternum black, 



sometimes pale in the centre ; coxai mostly black, sometimes posterior 



ones pale at base ; palpi black, except the tibia and tarsus, which are 



pale ; anterior pairs of legs mostly pale, with a few black patches on 



femora and tibiae ; posterior legs mostly black, the tarsi pale, and the 



patelln^, tibi« and metatarsi are lineated with pale. The palpi have many 



white hairs or scales, and on the tarsi they are interspersed with long 



black hairs ; there are white scales on the black parts of the legs. The 



abdomen is jet black, sides white, above with a white basal band and a 



band crossing the dorsum just before the middle and curving to meet the 



white sides; just above the spinnerets is a pair of white dots, and in 



front of these a median white spot, sometimes elongate. The structure 



