238 Dr. Malcolm Oanieron on 



cj. Seventh doisal segment with a tubercle in the middle line in 

 front of the posterior maigin ; eighth doisal segment at the posttM-ior 

 margin with a rather long straight tooth o-i either side, the niaigin 

 between with four or five short blunt teeth. 



Hah. Rotting fruit, Jiotanical (Jardciis. 



Deraha, ]i. gen. 



Mandibles suiiieuhal jtiomineiit, moderately stout, curved and 

 pointed at the aj)ex, tlie right with a tooth at the middle of the 

 imier border. Maxillary palpi 4-jointed, the 1st joint small, the 

 2nd lightly curved and widened towards the apex, tlie 3rd a little 

 longer than the 2nd, gradually widened from the base, the 4th 

 narrow, subulate, scaicely half the length of the 3rd. Inner lobe 

 of the maxilla narrow, furnished with short stout pectinations 

 along the inner border anteriorly and with longer, but fully as 

 stout ones posteriorly; outer lobe broadei' than the imier, the 

 apex eiliate-plumose. The tongue elongate, reaching the level of 

 the middle of the 2nd joint of the labial palpi, narrow at the base 

 widened towards the apex, bilid for about one-fointh its length. 

 Labial palj)! 2-jointed, elongate, reaching to the tip of the mandibles, 

 scarcely stylifoim, the 1st joint long and cylindrical, the 2nd a 

 little longer and slightly narrower than the 1st, bulbous at the 

 apex. Temples bordered below. Gular sutures distant, very 

 slightly diveigent posteriorly. Prosternal process obtusely angled; 

 mesosternal jjrocess narrow and pointed, extending fully half the 

 length of the inteiinediate coxae, which are narrowly separated; 

 metasternal process bluntly pointed reaching the preceding. Tarsal 

 formula 4, 4, 5. The 1st and 2nd pairs with the first three joints 

 short and subequal, the 4th as long as the three preceding together; 

 the posterior pair with the first four joints short and subet|ual, the 

 5th almost as long as the three jjreeeding together. Tibiae with 

 a seta at the middle of the outer maigins. Elytra distinctly sinuate. 



This genus is closely allied to Prosilusa, Fscudosilusa, 

 etc., but is separated tlierelioni by the narrow mesosternal 

 process and the scarcely stylil'orm labial palpi. The head 

 is pentagonal, the temples being straight and couvergeut 

 posteriorly to the base. 



91. Deralia fuscipennis, n. sp. 

 Pitchy- black, moderately sliining, thorax and abdomen (except 

 the fifth and sixth segments which are pitchy) rufo- testaceous. 



