152 Mr. R. I. Pocock on new Species of Chilopoda. 



afterwards diverges from it and ends in a point at two thirds 

 of the length. Costal area of wings rather broad, red, with 

 paler nervures, and a broad, white, subcostal stripe, which 

 soon becomes fainter and gradually disappears. Lower 

 portion of the wing blackish, slightly subhyaline, with bh\ck 

 cross-nervures and numerous pale green spots arranged in 

 irregular transverse bands ; the marginal band is regular and 

 of a darker green. 



Length of body 238 millim., head 10, pronotum 11, meso- 

 notura 39, metanotum 13, abdomen 150 ; projecting part of 

 oviduct 15 ; tegmina 20 ; wings 54 ; fore femur 29, tibia 

 26 ; intermediate femur 30, tibia 25 ; posterior femur 42, 

 tibia 36 ; antennae 54. 



Collected by Mr. T. Last at Mourondava, South-west 

 Madagascar. 



XVIIl. — Descriptions of some new Species of Chilopoda. 

 By \\. [. Pocock. 



The types of the species described in the following paper, 

 from various scattered localities, are preserved in the British 

 Museum of Natural History. 



Lithobiidse. 



Lithobius (s. s.) provocator^ sp. n. 



Colour ochraceous or pale castaneous, anteriorly deeper 

 castaneous ; legs paler. 



Body very robust, nearly parallel-sided, posteriorly atten- 

 uated. 



Head wider than long, very convex. 



Maxillary teeth 5 + 5 or 6 M- 6, conspicuous, (4 + 4 in young). 



Antennce moderately long, sparsely hirsute at the base, 

 thickly hirsute distallj^, composed of from 42-51 segments 

 (young with 34 segments). 



Eyes composed of about 19 ocelli, arranged as follows — 

 1 + 5, 4 or 5, 4 or 5, 4 or 5. 



Tergites in the posterior half of the body subgranular ; the 

 angles of the ninth, eleventh, and thirteenth moderately pro- 

 duced. 



Sternites sparsely hirsute, impressed. 



Legs. — First pair armed beneath as follows : — 0, 0, 2, 2, 1 ; 

 anal legs moderately robust and moderately long, claw un- 



