SPECIES OF GALEODIDJE IN INDIA AND CEYLON. 451 



posteriorly, while the succeeding 4 are entirely yellow, and the last or 

 anal is entirely black. Moreover, the free thoracic segments lying 

 behind the head are white and not infuscate as in R. brevipes. 



The type of this species was obtained at Kohat in the Punjab by 

 Lieut. A. Graeme Batten, and presented by him to the British Museum 

 in 1888. ' 



(8 ) Rliax nigriceps, sp. n. 



Colour, head, thorax and abdomen entirely black, mandibles reddish- 

 yellow above and externally becoming redder towards the base of the 

 fangs, palpi and legs pale, the tarsus of the first pair and the tarsus and 

 distal half of the protarsus of the palp deep ferruginous. Total length 

 of trunk 20 mm, length of head 3*7, width 6'3, length of mandible 

 9, of palp 12*5, of fourth leg 16. 



Locality, East Indies. A single female example. 



The above given table shows that this species is allied to R. brevipes 

 of Gervais, but that it may be distinguished from R, brevipes as from all 

 the Indian species of the genus by the pale colour of its mandible3 

 coupled with the black of the head plate. In this character as well 

 as in other respects connected with colouring, it closely resembles the 

 East African species R. termes of Karsch, of which I have seen a 

 single female example from Kilima Njaro. I separate it from 

 R. termes, because in the latter the third (the largest) tooth of the upper 

 fang of the mandible projects far below the level of the fourth tooth, 

 whereas in R. nigriceps the apices of the two teeth are not so notice- 

 ably unequal. No doubt other differential characters will come to light 

 when long series of properly preserved examples have been examined. 

 (9) Rhax nigrociticta, Bernard. 



Joum. Linn. Soc. Zool., xxiv, p. 361, Fig. 2 (1893). 



This is a strikingly-coloured little species. The head is deep brown, 

 but bears a conspicuous lemon-yellow patch upon its antero-lateral 

 angles ; the mandibles are brown ; the abdomen is purplish-brown 

 at the sides and below, with the anal segment black ; but its upper 

 side is ornamented with a wide continuous median yellow band ; the 

 legs and palpi are for the most part yellow, but they are ornamented 

 with black in the following manner. The trochanter and inferior edge 

 of femur are fuscous. There is a broad black ring round the tibia, and 

 the distal half of the protarsus and the tarsus are also black ; on the 

 first leg the tarsus is brown, and there is a fuscous spot upon the lower 

 edge of both tibia and femur ; on the second leg there is a complete 



