ON NEW INDIAN DRILID BEETLES. 579 



31. New Indiiui Drilid Beetles. By S. Maulik, F.Z.S., 

 Professor of Zoology in the University of Calcutta. 



[Received May 11, 1921 : Read June 1, 1921.1 



(Text-figures 1-5.) 



In the present paper four beetles from India of the Family 

 Drilid?e are described. They are all characterized by the pos- 

 session of extraordinarily developed lamellate terminal joints of 

 both the maxillary and labial palpi. These joints, of both pairs 

 of palpi, are similar in structure, and are of almost equal size. 

 They naturally fall into two genera, and can be distinguished 

 thus : — 



Head almost as loug as the pronotam, so that the eyes 

 are distant from the front edge of the pronotum. 

 Antennae distant Ziamellipalptcs. gen. u. 



Head short, the eyes ahnost touching the front edge of 

 the pronotum. Antennae more or less approxi- 

 mate Lamellipalpodes, geu. u. 



Lamellipalpus, gen. n. 



The type of this genus is Eugeusis nigripennis Pascoe, from 

 Burma. At the end of his description of this insect (Ann. Mag. 

 Nat. Hist. XX. 1887, p. 10, t. i. f. 7) the author remarks: " The 

 description is from a female ; the male has probably flabellate 

 antenna, as in E. paljpator Westwood " (the type of the genus 

 Eugeusis). I liave examined Pascoe's type ; it is not a female, 

 therefore his conclusion that the male has flabellate antennae is 

 not correct. Under this assumption he included his nigripennis in 

 West wood's genus Eugeusis, of which I have seen a specimen in 

 the collection of the British Museum, and with which it is not 

 congeneric. It is necessary, therefore, to erect a new genus for 

 the reception of this species as well as two others in the collection 

 of the British Museum. 



Genej'ic characters. — The antennae are 11-jointed, filiform; 

 sometimes each joint is slightly expanded on the inner side. They 

 are separated from each other by the whole breadth of the head, 

 and are situated in front of the eyes. The eyes are convex and 

 prominent. The mandibles are large, curved, and pointed ; in 

 repose they lie crossed. The maxillary and labial palpi are 4- 

 and 3-jointed respectively, the terminal joint in each being very 

 large, elongate, and compressed. The front coxae are large and 

 exserted, having a large trochanter ; the intermediate and hind 

 coxae are contiguous, but not so large as the front ones. The 

 tarsi are 5-jointed, the fourth being bilobed. The elytra are not 

 of a membranous texture and the suture is closely fitting. 



