DORCUS. 167 



mandible (without tlir jionlloni tooth at tho base), whic-li is 

 characteristic oftlie ty})ical phasic t)i D.foviddi-s. 



The two tubercles of the liead are a little fartlier apart iii 

 large specimens of the poi(ltoni phase than in tliose of the 

 typical phase. 



(J. Length (with mandibles), 22-00 mm. ; (witliout man- 

 dibles) 19-39 mm. : breadth, 8-17 mm. 



$. Length, 19-26 mm. ; breadth, 9-11-5 mm. 



Bhutan : (Capt. Pemberton). Darjeeling Distr. : 

 Gopaldhara, Rungbonj/ Vallev [W . K. Webb); Pedong (L. 

 Dnrel) ; Maiigpu {R. T. Atkinson) ; Kurseong, 4500 ft. (E. A. 

 D'Abreu, Aug.). Assam : Shillong, 5000 ft. {T. BainbriggK 

 Fletcher, June ; H. M. Parish, Sept.) ; Manipur {W . Doherty). 

 Burma : Sadon, 3000 ft. {B. Makiise, June, July ; Taunggyi, 

 Shan States, 4500 ft. (R. Malaise, Aug.). Andaman Is. 

 {E. T.Atkinson). 



Type in the Hope Dept., Oxford University Museum, also 

 those of omissus, astacoides and fraternus ; those of ponUoni 

 and croceus in the Paris Museum ; that of inipressus in the 

 British Museum and that oibirrnanicus in the Indian Museum, 

 Calcutta. 



Mr. R. E. Parsons has sent me a series of both sexes of thi.s 

 species foinid by him feeding upon the exuding gummy sap of 

 an old green lime tree (Indian country lemon) in Shillong. He 

 notes that when alive they are of a beautiful golden chestnut 

 colour, but become darker very shortly after death. Dr. 

 Didier's Metopodontus croceus is a rather small male specimen 

 which has retained its bright colouring better than usual. 



88. Dorcus castaneicolor, uom. nov. (Plate XII, Hg. 4.) 



Tetrarthrius castaneus Did.,* Encyclop. Ent. Col. ii, 1926, p. 2'J (pre- 

 occupied name). 



Chocolate-brown, with the extreme margins of head, thorax 

 and elytra, the tips of the mandibles and the knees black ; the 

 tarsi with brushes of yellow hairs beneath, the body very 

 smooth and shining above and beneath. The form convex, 

 not very elongate. The scutellum rather large, the shoulders 

 of the el,>i;ra i-oimded, the extremities flatten(>d and tapering. 

 The prosternum narrow and vertically ])rominent between the 

 coxa' but not produced backward. The seventh joint of the 

 anteima a little produced. The hind femora rather clavate, 

 the basal })art slender, the tarsi with pads of yellow hair beneath 

 the four basal joints. 



(^. The head is finely and not closely ])imctured, a little 

 hollowed obliquely on each side and elevated in a gentle curve 

 in front, the cly])eus slo])ing but rettexed and l)ilol)ed at the 



