ICHTHYURUS PLANIFRONS. 81 



Hab. Sumatra. — The male specimen of this species 

 allied to the Javanese /. lateralis Westw. , was cap- 

 tured between 17 May and 14 June of last year in 

 the Highlands of Palembang by Mr. A. L. van Hasselt, 

 chief of the Scientific Expedition to Central Sumatra , 

 equipped by the Geographical Society of the Netherlands ; 

 the female specimen in October 1877 at Alahan pandjang by 

 Mr. Joh. F. Snelleman, Naturalist to the above mentioned 

 expedition. 



4. Ichthyurus ,planifrons , sp. n. 9- 



Length about 12 mm. — The head, the parts of the 

 mouth and the antennae black ; the mandibles dirty yellow, 

 with the apex chestnut-brown; the face along the inner 

 orbit of the eyes dirty yellow, embracing an oval black 

 spot a little above the base of the antennae ; the scape of 

 the antennae with two lateral dirty yellow stripes. The 

 prothorax black, with a transverse spot a little within 

 the front margin and reaching the sides , and three oval 

 spots touching the hindmargin dirty yellow. The scutel- 

 lum pale yellow with a longitudinal black stripe across 

 the middle. The elytra pitchy , with a mouse-grey tinge , 

 blackish along the outer margin and at the tip ; the 

 wings hyaline , the costal portion brown. The legs black, 

 with the tip of the coxae and the extreme base of the 

 femorae pale yellow , the trochanters brown. The abdomen 

 above as well as beneath dirty yellow , becoming fuscous 

 towards the apex , especially beneath ; the apical segment 

 black, brown at its base. The thorax beneath black, dirty 

 yellow along the upper margin on each side. 



Of a more robust form than the foregoing species. The 

 head shining , covered with very fine punctures , the vertex 

 broad and flattened; the antennae thicker than in the 

 foregoing species. The prothorax shining, covered with 

 almost imperceptible punctures ; its margins greatly raised ; 

 the lateral margins sinuated near the anterior, the hind 



Notes from the Leytlen Museum. 



