FROM SI AM AND MALAYSIA. 323 



Hah. A single male example from Perak (Malay Peninsula). 

 Presented to the British Museum by J. H. Leech, Esq. 



Very closely allied to Sp. aterrimus, Pocock, from Mergui, 

 but having the legs and antennae reddish yellow and concolorous, 

 instead of fusco-annulate. Moreover, in aterrimus the inferior 

 border of the anterior lamina of the copulatory foot is entire and 

 not denticulate, and the large spur of the protrusible portion is 

 hooked at the apes. 



Spieosteeptus Patricii, sp. n. 



c5' . Colour — head castaaeous below, olivaceo-fuscous above ; au- 

 tennae olivaceo-fuscous, pale at the base ; somites castaneous 

 posteriorly ; legs olivaceo-fuscous, testaceo-annulate. 



£i/es separated by a distance about equal to a diameter and a 

 half. AntenncB extending beyond the first tergite. 



First tergite laterally slender, with its anterior angle slightly 

 produced and much thickened, the posterior angle nearly a right 

 angle, the anterior and posterior borders very lightly emarginate. 

 Eest of the tergites very smooth posteriorly, the suture deep but 

 not conspicuously crenulate, the lateral striae extending nearly as 

 high as the pore. 



Anal terqite not constricted, the caudal process very long, 

 slender, and upcurled ; valves with their margins convex and 

 not deeply compressed .: the sternite defined by a groove. The 

 coxal segment of the posterior pair of legs of the somites at 

 the hinder end of the body bearing each a small tubercle. 



Copulatory feet — anterior lamina slender, narrowed below, and 

 externally hollowed, the protrusible portion terminating in a 

 simple, apically spined laraelliform piece which does not support 

 styliform spurs. 



Number of somites 54. 



Length about 120 millim. 



Hah. A single male example from Butavia (JR. Kirkpatrick). 



xlllied to S.javanica, Br., as shown by the form of the copulatory 

 organ, but differing in the details of this apparatus, in having 

 the anterior angle of the first tergite more produced, the legs 

 and antennae of- a different colour, &c. 



Spikostreptfs Hosei, sp. n. ?; 



Colour black or reddish black, the labial region, tip of caudal 

 process, and margins of valves ferruginous ; antennae and legs 

 fulvous, concolorous. 



LINN. JOURN. ZOOLOOV, VOL. XXIV. 25 



