276 Mr. C. J. Galian on larva} of Tridenotoma childreiiif 



sides, 11| mm. broad, puuctaLc above, reddish-brown with front 

 margin black, clypeiis and epistome * not separated, tlie latter 

 slightly membranous at the front edge, labrum distinct, transverse 

 with obtusely rounded front margin fringed with hairs ; antennae 

 l^laced laterally on a slight projection of the head, 3-jointed, the 

 3rd joint very short and narrow, the 2nd much shorter and 

 narrower than the 1st ; on the vertex of the head a sutural line, 

 beginning at the occiput, extends a very short distance forwards in 

 the middle and then branches into tvv^o curved lines forming a 

 horse-shoe-shaped impression, from the anterior ends of which, 

 transverse lines may be seen running to the sides of the head to end 

 just behind the antennal supports, the form and course taken being 

 very much the same as they are in tlie lavv;e of Pythu and Fyrochroa ; 

 there are no ocelli visible ; mandibles large, curved, each with three 

 cusps or teeth at the apex, the left mandible has two teeth on 

 the inner edge ; the maxilhe have the usual basal joint or cardo, a 

 rather long and broad stipes which carries a 3-jointed palp, and 

 a rather broad obtuse inner lobe, which near the middle is provided 

 with a horny tooth bifid at the end, the dorsal division of this tooth 

 being slightly longer than the ventral, tlie lobe is furnished also with 

 some stilf setaj ; mentuni longer than broad, somewhat trapezoidal 

 in form, labial i)alpi 3-jointed, ligula narrow ; the hypopharyx 

 forms an arch on the dorsal side of the mentum and is produced in 

 front as a flat plate with a slightly emarginate border. 



Prolhorax widest a little l^ehind the front border, being there 

 13^ mm. broad, narrowed at the base, where it is only 11 mm. broad j 

 its length ei|ual to that of the head measured from the occiput to the 

 front margin of the epistome : the surface smooth and impunctate, 

 yellowish-white with a few brownish patches ; prosternura smooth. 



Mesothorax, 11 1 mm. broad across the middle, much shorter than 

 the iirothorax, and sliglitly shorter than the metathorax ; it carries 

 on the tergum a transverse series of short, small longitudinal carinse 

 near the front margin, and a set of smaller tubercles forming an 

 oblique patch on each side ; the sternum is crossed by a narrow 

 slightly arcuate, pale band or depression in front of which is an area 

 covered with small corneous granules, while behind it there are on 

 each side a few more elongate granules or carinio. 



Metathorax, 11 mm. broad across the middle, a little hmger than 

 the mesothorax, Imt similar to it in structure and in the manner in 

 which the small granules and carimx) are disposed on the tergum 

 and sternum. 



* I use the term epistome to denote the piece, often separate, to 

 which the labrum is attached. 



