NIGIDUS. 217 



123. Nigidius elongatus. (Plate XXII fig. 8.) 



Xigicliiis clonijattis Boil., Le Xaturaliste, xxiv, 1902, p. 205. 



Black and shining above and beneath, with the b(jdy rather 

 narrowly elongate, convex and cylindrical. The hedd is very 

 brc^ad, with the whole middle part senii-circularly hollowed 

 and coarsely, unequally j)unctured, with an almost smooth 

 anterior median ])atch and a slight rounded elevation on each 

 side behind the front margin. The canthus is strongly and 

 evenly rounded, broadest behind, where it is truncated at 

 a right angle. The mandibular })roeesses are rather slender, 

 strongly curved inwards, not lobed at the base, but bearing 

 a very small lobe at the inner edge just before the tip. The 

 j)ronotH7)i is extremely smooth but has a well-defined, coarsely 

 but sparsely pinictured, dull, broad front marginal band, 

 divided in the middle by a longitudinal ridge. The lateral 

 margins are strongly and abruptly dilated, straight and parallel 

 in the anterior half, first strongly rounded and then feebly 

 concave in the posterior half ; the hind angles are extremely 

 blunt and the base is feebly rounded. There is only a faint 

 vestige of a median depression containing a few mmute 

 punctures. The sides are broadly punctured, very strongly 

 and closely except in the inner part, when the puncturation 

 becomes fine and scanty. At the outer margins it is rugose. 

 The elytra bear three very strong closely punctured dorsal 

 grooves with convex shinmg intervals. These are succeeded 

 laterally by broad grooves, containing very large shallow 

 contiguous pits, and separated by very narrow ridges. The 

 outer margins and a})ices are densely pmictured and opaque. 

 The mentum and submentum are very coarsely and densely 

 pitted or honeycombed. The metasternum is rugosely punc- 

 tured at the sides, but has only a few very fine punctures in the 

 middle. The abdomen is shining, with large punctures near 

 the front and hind margins of each sternite, except in the middle, 

 where they are fairly closely pmictured. 



Length, 18 mm. ; breadth, 7 mm. 



Bi'RMA : Ruby INIines ( W. Doherty) ; Cheba, Karen Hills^ 

 2700-3300 ft. (L.>m, Dec.) ; Rangoon {F. J. Meggitt). 



Type in the Genoa IMuseum. 



124. Nigidius dawnae. (Plate XXII, fig. 7.) 



Xigidiiis dawnie Gravely,* Rec. Ind. Mus. xi, 1915, p. 427, pi. 29, 

 fig. 7. 



Black, ver}'' shining above, opaque beneath, convex, 

 cylindrical, very short and broad. The tarsi are very short. 

 The hmd is broad and uneven, coarsel}' and iniequally 

 punctured, with a very small smooth anterior space on each 



