142 JAMES WATERSTON. 



themselves are oblong, quadrangular and narrowed slightly above. The antennae 

 are set slightly above half-way between the base line of the eyes and the mouth-edge ; 

 the latter nearly straight, not re-entrant, with two slight obtuse prominences at the 

 sides of the clypeus ; genal keel obsolete, at most a trace at the lower corner of the 

 eye. Reticulation of face fine, faint above the middle ; below more definitely raised 

 and drawn out parallel to the orbits and scapal hollows ; between the scrobes more 

 regular ; on the bare occiput the pattern is larger and raised. Face very hirsute, 

 over 100 short bristles on each side of the mid line between the anterior ocellus and 

 mouth-edge, about a dozen between the scrobes, and over 20 on the clypeus. 



Antennae : length "38, scape (nearly 3 : 1) as broad as the pedicel and nearly twice 

 as long, but just shorter than (a) the club, or (6) the sum of the funicular joints, or 

 (c) the pedicel and the first two of the funicle together ; pedicel (10 : 7) longer than 

 the first funicular joint, and half as long as the club ; ring joint single, very minute ; 

 normal joints of funicle subequal (16 : 16 : 15), with a uniform breadth of 15 ; club 

 swollen, in three subequal segments (14 : 12 : 13) with a maximum breadth of 20. 



Month-parts : Mandibles shortly cut back rectangularly, both dorsally (more deeply) 

 and ventrally, having a broad thin sharp straight-edged chisel-like apex ; outer 

 surface \\nth three bristles behind the apex, and two stout spines, one ventral and 

 basal in position, the other shorter, above, on the inner surface, where there are also 

 two or three minute bristles, subapical and dorsal. The two internal ribs are long, 

 equal, and gradually tapered. First maxilla with three short lateral stipes, and 3-4 

 other bristles ; pattern large, a httle raised ; first joint of palpus bare, three-fifths 

 of the second, which bears two bristles — one median and one pre-apical, besides a 

 terminal slender spine nearly as long as the joint itself. The galea bears two to three 

 short marginal bristles ; second maxilla, labium a perfect oblong (10 : 7), palpus 

 slightly exceeding (7 : 6) the basal joint of the maxillary palpus, with one median and 

 a longer terminal bristle as long as the joint itself. 



Thorax : all the bristles stiff and spine-like. Pronotum with a strong bristle above 

 the nearly semicircular spiracular emargination, a posterior row of about 24 between 

 and many others, more minute, in front. Mid-lobe : along each parapsidal furrow- 

 are 6-7 longer bristles and 4 others in front of the suture ; besides these there are 

 about 120 short bristles distributed evenly over the lobe, arranged in rows, but not 

 distinctly in bilateral symmetry about the mid line. Side lobes : four bristles outside 

 the furrows and one before the tegulae ; axillae with two bristles ; scutellum : 

 situated on the posterior edge, which they divide into three approximately equal 

 sectors, are two stout bristles one and a half times as long as the scutellum itself. 

 In front of each, rather nearer to the posterior angle of the axilla, is an additional 

 bristle, one-third of the length of the first pair ; like the mid lobe, the scutellum is 

 evenly covered with short bristles, but only half as numerous ; the density on both 

 areas is about the same. The pattern of the thoracic notum is indistinctly fine ; 

 transversely drawn out, and more distinctly raised transversely than longitudinally ; 

 the reticulation is thus somewhat scaly. Besides this pattern the whole integument 

 when highly magnified shows numerous very minute close-set pustules or clear 

 punctures. Metanotum : the post-scutellum broadly convex, rather flat, posteriorly 

 declivous, projecting over the propodeon ; its surface covered with large shghtly 

 raised cells, radiating from a clear, medio-basal spot, each ray consisting of not more 



