COLLECTED IN DUTCH NEW GUINEA. 529 



Arachnopus planatus, sp. n. (PI. XXXIX. fig. 7.) 



cj . Ovatus, niger, sqnamis brunneis indutus ; rostro in medio carina basali elevatiore in-sedito ; 

 prothorace evidenter transverse, ad apicem minima constricto, rude reticulato-punctato, 

 interstitiis granulis nitidis obsitis, vittis quinque brunneis indistinctis notato, pi'osterno 

 parum profunde sulcato, sulco squamis brunneis repleto; elytris subcordatis, valde acumi- 

 natis, apice vix productis, in dorso usque ad interstitiura quartum transversitn rleplanatis, 

 subsulcatis, interstitiis earinato-granulatis, fascia basali transversa et altera lateral! obliqua 

 e squamis crebrioribus indefinite notatis; femoribus brunneo-fimbriatis, fimbriis anterioribus 

 in dimidio basali deficientibus, tibiis supra squamosis, subtus lineatim setosis; funiculi 

 articulis duobus basalibus sequilongis, septimo evidenter transverse. 



Colour dull black, with shiny granules and uneven light brown scaling; on the 

 pvothorax the scales form five ill-defined longitudinal lines, which are only noticeable 

 in the front half; on the elytra the scaling is generally more close, but forms a denser 

 transverse band in the basal impression and an oblique lateral band, running inwards 

 and backwards from between the coxae ; the leg-fringes are brown on the femora and 

 yellowish white on the tibiae. 



Head coarsely and closely punctate on the vertex, the forehead with a broad 

 impressed central ridge, the eyes with a broad ring of brown scales. Eostrum with 

 a high central carina in the basal half and two narrow undulating carinse on each side 

 of it. Antennae with the two basal joints of the funicle subequal, joint 3 a little 

 longer than broad, 4 to 6 slightly and 7 strongly transverse. Prothorax evidently 

 broader than long, the sides regularly rounded, broadest behind the middle, the 

 apical constriction shallow and indistinct ; the upper surface coarsely and reticulately 

 ])unctate, the interstices somewhat elevated and bearing small elongate shiny granules, 

 each puncture containing a short recumbent scale-like seta ; the prosternum with a 

 thallow central furrow containing a stripe of yellowish-brown scales which extends 

 into a transverse band between the coxae. Elytra broadly heart-shaped, evidently 

 broader than the prothorax, the sides slightly rounded to the middle, thence rapidly 

 r.cuminate, the 'apex acute but very little produced downwards, the basal margin 

 elevated and broader than the base of the prothorax, the dorsum transversely flattened 

 as far as interval 4 and from just behind the basal impression back to the middle of 

 the declivity; the upper surface subsulcate, the sulci disappearing towards the apex 

 and their sculpture concealed by the dense scaling, the intervals each with a single 

 row of unevenly distributed granules, those on intervals 4 and 5 closely placed and 

 making them appear subcarinate, the granules each with a short, depressed, scale-like 

 white seta, the apical lateral fringe rather sparse. Legs with the femora rugose and 

 bearing numerous small transverse carinse, the fringes brown, those on the anterior side 

 disappearing in the basal half, the under surface of the hind femora with dense scaling ; 

 the tibiee with yellowish-white fringes, with moderately dense scaling above and a line 

 VOL. XX. — PART XVI. No. -5. — October, 1915. 4 f 



