238 Wisconsin Academy of Sciences, Arts and Letters. 



LYSSOMANES LONGIPES Tacz. 1874. 



Plate XI, figure 12. 



Jelskia longipes Tacz., 1874. Les Araneides de la Guyane frangaise, 



Horae Soc. Entomol. Ross., T. VIII, p. 32-132. 

 $ . Length of ceplialotliorax 2 Earn; of abdomen 3.2 mm. 



Legs 12.4, 8.3, 7.7, 8. 



Cephalic part as long as thoracic. Quadrangle of eyes one-fifth wider 

 than long. Eyes of first row a little more than twice as large as 

 those of second. Second row narrower than first. Clypeus about 

 one fifth as high as anterior eyes. Falces very weak, vertical, par- 

 allel, as long as face; fang- short. Maxillee rounded, and a very little 

 enlarged at their extremities, excavated on inner sides for labiuni. 

 Labium as wide as long, one-half as long as maxillse, blunt. Legs 1, 

 2, 4, 8; femur of the first very long, equalling femur with patella and 

 half tibia of the second. Palpus with patella and tibia about equal 

 in length; patella and tibia three-fourths as long as tarsus, spines on 

 palpus as follows: Femur, two at distal end, and one in the middle of 

 the dorsum, aU short; pateUa, one at extremity; tibia, one long hair 

 in the middle, and one at extremity; tarsus, one longhair on dorsum 

 of enlarged part. 



Coloration (under alcohol): Upper surface of cephalothorax deep red- 

 dish yellow, Avith a narrow black line around lower edge and an- 

 other on the central thoracic region; eyes, as usual, on black spots. 

 Abdomen above, with a blackish region at the extremity in front of 

 which is a white band; the remainder of the dorsum is blackish ex- 

 cepting three white spots, one elongated, large, one on the anterior 

 central part, and two smaller, which come off obliquely from the 

 posterior corners of the first one. Spinnerets white. Ventral surface 

 white excepting at the extremity where it is blackish. Sternum, 

 mouthparts, and falces yellow. Legs light yellow with brownish 

 spines and tips. Palpus pale with the bulb reddish brown. 

 When dry, the eye-region is seen to be covered with white hairs. The 



abdomen is also thinly covered with short white hairs. 



Habitat: French Guiana. 

 From the collection of Dr. Taczanowski. 

 This species is distinguished by the great relative length of the first pair 



of legs, and especially by the elongation of the femora of that pair. 



