CHILOPODA OF LAICE UEMI. 399 



CHILOPODA AifD AEACHNIDA. 

 By E. I. PococK, of the Britisli Museum (Natural History). 



(Plate 26.) 



Class CHILOPODA. 

 Genus Scutigeka, Latr. 



SCTJTIGERA COLEOPTBATA {Linn.). 



Syst. Nat. ed. x. i. p. 637. 



[For synonymy, see Latzel, Die Myriop. Oester.-Ungar. Mon, i, p. 25 

 (1880).] 



Log. Seir, 



Eanges from Madeira and Spain throughout South Europe. 



Genus Lithobius, Leach. 



LiTHOBius PEKsicirs, sp. n. 



Colour a uniform reddish, brown as ia L. forficatus. Head 

 smooth, furnished on each side with about 15 ocelli arranged in 

 four rows. AntenncB long, composed of about 42 segments, the 

 exact number being doubtful on account of the indistinctness of 

 the divisional line between some of the segments. Tergal -plates 

 smooth, the posterior sparsely punctured and hairy ; the posterior 

 lateral angles of the 11th not produced beyond the level of the 

 posterior border; those of the 13th produced and spiniform, as 

 for example in L. forficatus ; the posterior angle of the remaining 

 terga not produced. Coccal teeth of external maxillipedes 2-2. 

 Coxal pores of posterior four pairs of legs 3, 5, 4, 5. 



Anal leg with single claw ; armed below with 0, 1, 3, 3, 1 

 spines, the coxa with a single external lateral spine. Tibia of 

 anal leg and of preanal leg longitudinally sulcate above in the 

 male ; these appendages otherwise not modified. 



Total length 19 mm. 



Loc. Seir. A single male example. 



Very closely allied to the common European species L. muta- 

 hilis, L. Kocb, but apparently distinct on account of the presence 

 of the lateral spine on the anal coxa and of the dentiform pro- 

 longation of the 13th tergiie. 



