1912.1 103 



Antennifi testaceous ; 1st joint about as long as 2nd and 3rd together, these 

 latter longer than broad and of equal length ; 4th slightly shorter than 3rd, 

 a little longer than broad ; 5tli to 10th quadrate ; 11th a little longer than 

 10th, abruptly acuminate Thorax testaceous, mxich narrower than head and 

 elytra, gradually narrowed behind ; anterior angles effaced ; posterior angles 

 roimded ; disc with two impressions at the base, separated by a smooth 

 median space, which extends to anterior margin ; punctiu'ation coarser and 

 much less close than that of the head ; asperate, surface between the punctures 

 smooth and shining ; piibescence slight. Elytra slightly longer than the 



thorax, testaceous, sometimes a little 

 inf uscate ; punctiiration much as in 

 S. gracilis, Sperk, evanescent towards 

 ^ J apex and posterior angles ; finely but 



not densely pubescent. Abdomen testa- 

 DoBSAL Plate- ceous, very finely and closely punctured 

 and pubescent, distinctly widened be- 

 hind. Legs testaceous. Length 2^-3 

 Rough sketch of tcrniinal ventral segment of n^^ j;^ ^j^g <? the posterior margin of 



the 6th ventral segment presents a large, 

 deep, semi-circular incision on either side. This emargination commences on 

 each side near the outer angle, and is of such size that it is only separated from 

 its fellow by a narrow median lamina, which is produced beyond the level of 

 the external angles, and dilated into a spear-shaped termination. 



Taken near Massowah. 



Types in my collection. I liave pleasure in dedicating this 

 species to Dr. David Sharp. 



March 30</i, 1912. 



NOTARTHBINUS BOULTI : A NEW LYCiENOPSID BUTTERFLY 

 FROM BORNEO. 



BY T. A. CHAPMAN, M.D. 



PLATE VI. 



This butterfly is sent by Mr. J. C. Moulton from Sarawak. The 

 specimens were taken on Mount Klingkang, and are to be placed in 

 the British Museum collection at South Kensington. 



JSTOTARTHRINUS BOULTI, n. sp. 



(? . Upperside black, with white cilia and a patch of iridescent blue occupy- 

 ing about a fourth of fore wing ; the lower basal portion invades lower margin 

 of cell, but hardly occupies lower half of it ; it extends a little beyond cell, and 

 below vein 4 a little fiu-ther still ; its outer margin below this parallel with 

 hind margin at rather more than two-thirds of wing from base ; the blue on 

 hind wing is more suffused, rather as a light wash over the black than as a 



