HANSEN: ON SIX SPECIES OF KOENENIA. 219 



than long and the last tarsal joint much longer 

 than the two preceding ones together. The 

 stifif seta on the third metatarsal joint in the 

 first pair of legs is inserted at the base of the 

 joint. The sensory seta on the metatarsus of 

 the last pair of legs reaches about to the middle 

 of the last tarsal joint. 4. K. angusta n. sp. 

 ß. Sternum anterius has seven hairs arranged in 

 four transverse rows. The palpi have the se- 

 cond metatarsal joint a little longer than thick 

 and the last tarsal joint considerably shorter 

 than the two preceding ones together. The 

 stiff seta on the third metatarsal joint in the 

 first pair of legs is inserted at the middle of 

 the joint. The sensory seta on the metatar- 

 sus of the last pair of legs reaches only a little 

 beyond the end of the metatarsus. 



5. A', siauicnsis n. sp. 

 b. Fourth and fifth abdominal segments each with four 

 pairs of long setaî on the ventral side and the sixth 

 segment with three pairs, the two setce of the pair 

 next to the median line rather near each other. 

 No ventral median seta in the three posterior ab- 

 dominal segments. (The flagellum with nine joints). 

 6. A'. Grassii (Silvestri in litt.), n. sp. 



I. Koenenia mirabilis Grassi (et Calandruccio). 

 PL 2, fig. I a — I f. 



1885. Koenenia viirabilis Grassi (and Calandruccio), Natura- 



lista Sicil., Anno IV, 1885 (fourteen 

 pages). 



1886. » » Grassi, Bull. d. Soc. Ent. Ital. Anno 



XVIII, 1886, p. 153 — 172, Tav. IX 

 —X. 

 1898. » » Hansen and Sorensen, Entom. Tid- 



27 



