1915.] 253 



the antenna of the c? haviut!? the excavation very open and occupying 

 nearly the whole surface of the underside, and not vei'y deep. 



Cyathiger matangensis sp. n. (Plate XX, figs. B, 3a, ,^ ; 3b, ? )• 



S . Oblong-ovate, convex, castaneoiis, finely and confluently punctured, 

 Avith short, pale pubescence. Head a little longer than broad, convex, with 

 sides rounded to base, attenuate in front, frontal tubercule slightly rounded 

 and shortly sulcate in middle ; eyes situate a little before middle, rather large. 

 Antennae with 7 joints : 1 large, longer than broad ; 2 and 3 transverse ; 3 wider 

 than 2, being produced inwards ; 4 — 6 transverse, each about equal to 2 ; 7 very 

 large, transverse and irregularly semi-orbicular; lower surface of 7 (see fig. 3a) 

 with a very deep, transverse excavation, the apical margin of excavation nearly 

 straight, the basal margin emarginate, the lateral margins sub-parallel. Max- 

 illary palpi with last joint fusiform. Prothorax about as long as head, widest 

 before middle ; the sides very slightlj' sinuate towards base, and rounded in 

 front. Elytra sub-quadrate, nearly twice as long as prothorax, roiinded at sides 

 towards base, with a rather strong basal depression near the shoulders, the 

 latter well marked. Abdomen about half as long as elytra, depressed at base, 

 attenuate to apex. Metasternum transverse, depressed in middle. Ventral 

 surface of abdomen with large excavation, the sides of the excavation rugosely 

 carinate. Femoi-a rather broad ; tibiae narrowed at base, and inci'assate from 

 middle. to apex; posterior pair bent outwards from middle to apex. Length, 

 1.50 mm. 



$ . Slightly smaller ; eyes not so prominent ; 3rd joint of antennae not 

 produced inwards, apical joint (see fig. 36J smallei", withovit excavation, trans- 

 verse, securiform, with base emarginate ; elytra shorter ; venti-al surface of 

 abdomen transversely excavate at base. 



Hah. : Sarawak, Mt. Matang, alt. 1,000 feet (3.xii.l3, found by 

 sifting dead leaves in jungle). 



Belongs to G-roup V. This species is closely allied to C. cribratus 

 Eaffr., from Penang (of which I took 1 ,^ and 4 ? 5 'I't the same 

 locality) ; but it differs in the (^ having the 3rd joint of antennae 

 produced inw^ards, and the ayjical joint larger and more transverse, 

 the latter wdth the apical margin of the excavation straighter, and the 

 sides differently shaped, and the base of the elytra not bifoveate. 



Cyathiger sarawakensis sp. n. (Plate XX, fig. 6, ^ .) 



J . Ovate, atteni;ate in front, convex, castaneo-piceous, opaque, covered 

 with round, shallow, confluent punctures, with short, golden pubescence ; palpi 

 and tarsi flavous. Head abovit as broad as long, widest behind eyes, which are 

 placed at abovit middle ; attenuate and sub-quadrate in front, sides rounded at 

 base, frontal tubercule shortly sulcate. Antennae with ten joints : 1 longer 

 than broad, narrowed at base, outer margin with apex acute ; 2 much shorter 

 than 1, transverse ; 3, 4, 5 shorter, narrower than 2, transverse, equal to 



