230 ENTOMüI.ÜGISK TIDSKRIKT 1901. 



6. Koenenia Grassii (Siiaksiri in litt), n. sj). 

 PI. 4, fig. 3 a— 3 f. 



Material. Of this small species an adult female and a 

 young specimen are examined; both were intact (save the want 

 of the fiagellum), but the integuments of the legs and the sternum 

 were partly wrinkled (probably owing to the intiuence of strong 

 alcohol) and therefore the thickness of some of the joints could not 

 be measured and the arrangement of the hairs on the sternum 

 could not be understood. Only the adult is described. 



Head. The frontal sense-organ (fig. 3 b) is elongate, almost 

 three times longer than broad, and the rami with very acute 

 ape.x. In each lateral group (fig. 3 a) three sense-organs, which 

 are very long and slender, about six times longer than thick 

 and partly acuminate with acute apex. — On the sternum eight 

 hairs were present (fig. 3 c), but judging from the irregular arran- 

 gement two or three were probably broken ofï"; the irregular fol- 

 ding of the skin prevented a precise comprehension of this part, 

 and the figure exhibits the hairs in the position observed, it 

 being too dangerous to attempt a reconstruction of their normal 

 arrangement. 



Chela (fig. 3 d). Each finger has nine slender spines; the 

 distal one is scarcely larger than the following; all have the 

 apex obtuse and none of them an accessory apex; on the fixed 

 finger there is besides a quite rudimentary spine. 



Palpi (fig. 3 e). They are very robust. The second meta- 

 tarsal joint is shorter than the first and about as long as thick. 

 The first tarsal joint is conspicuously shorter than the second; 

 the third tarsal joint is much longer than the first and the second 

 together. 



Legs. They are more robust than in any of the other species. 

 The first pair has the third metatarsal joint somewhat shorter than 

 the fourth, and the stiff seta is inserted near its base ; the last 

 tarsal joint is a little more than three and a half times longer 

 than thick. — The last pair has the metatarsus as long as the 

 first tarsal joint plus the half of the second, its sensory seta is 



