262 PHEMONE TRIANGULIFER. 



The thorax shows irregular transverse wrinkles, intermixed 

 with a few fine punctures, and two divergent lines of a 

 white pubescence which are the continuation of a white 

 /\ -shaped figure on the vertex of the head. 



On the basal half of the elytra small dots of a white 

 pubescence are irregularly sprinkled, and, at the base, a 

 short continuation of the thoracical lines is to be seen. 

 The apical half of the elytra is occupied by two rectangular 

 triangles, which are composed of more or less interrupted 

 lines of a white pubescence and which are directed with 

 the top towards the apex of the elytra: \\\/ j between 

 the hypothenuses of the triangles and the outer margin of 

 the elytra a few small white dots are present. The elytra 

 are moreover provided with • rather widely spread deeply 

 impressed punctures which are very sparse and fine on the 

 apical half. 



The undersurface is covered with a bright grey pile, 

 and the pro- and mesosternum show, just above the coxae, 

 a line of white pubescence; the apical margin of the 

 abdominal segments is fringed with white hairs which 

 decrease in length towards the middle; the b^^ (apical) 

 segment is as long as the 3 foregoing sesgments taken 

 together, conical, impressed along the middle, truncated at 

 the end 5 the truncation is fringed with yellowish hairs 

 and the sides are densely covered with a white pubescence. 

 The legs are covered with a pile similar to that of the 

 underside of the body. The tarsi of the fore-legs are dilated, 

 those of the middle-legs broader than those of the posterior 

 pair. The two last joints of all the tarsi are black. The 

 intercoxal part of the prosternum is rounded, without tubercle. 



Hal). Djankang, on the Upper Kapoeas river in the 

 Southern & Eastern District of Borneo. — The described 

 specimen has been presented to the Leyden Museum, together 

 with many other valuable beetles from the same locality, 

 by Dr. S. L. Brug, of the Dutch Indian medical service. 



Leyden Museum, December 1907. 



^Jotes from the Leyden Museum, ^''ol. XXIX. 



