1892. . 25 1 



afforded by it, to learn if possible the true relations of parts which 

 have been subjects of dispute, and to draw up a careful description of 

 the species as far as possible. Mr. E. Saunders most kindly lent his 

 specimen to facilitate this undertaking, and thereby enabled a figure 

 to be given of the mouth parts, and a better view to be had of the 

 elytra than was obtainable otherwise. 



Head subquadrangiilar, transverse. Vertex transverse, shorter than the breadth 

 of the eye-cluster, defined anteriorly by a sinuate border extending right across 

 between the eyes ; upper surface transversely depressed in the middle ; posterior 

 margin descending behind the eyes. Eyes collective, about twenty to the cluster ; 

 the facets hemispherical, their interstices velvety with erect hairs ; the clusters 

 rotund, flattened laterally, subsessile, but with the orbits slightly salient beneath 

 anteriorly. Frons subtriangular above with the apex obtuse, descending steeply to 

 tlie oral aperture, compressed laterally in advance of the eyes, where it projects, like 

 a hollow sphenoid beak, above the mouth, with a ehallow median furrow down the 

 apex. Antenna) 5-jointed, inserted towards the upper part of the sides near the 

 extremity of this frontal projection, reaching, when thrown back, nearly to the base 

 of the abdomen ; Ist joint very short, subcompressed ; 2nd joint short, moderately 

 stout, obtusely obovoid ; 3rd joint perfoliate, prolonged outwards at the tip into a 

 filiform or linear acuminate lobe to upwards of twice the length of the next joint, 

 which is inserted in a concavity in the upper-side of its ovately dilated base ; 4th 

 joint filiform or linear, elongate ; 5th joint also filiform or linear, acuminate, about 

 twice the length of the preceding joint, and longer than the distance of its own base 

 from the antennary foramen. Oral aperture ringent, in the form of an isosceles 

 triangle with the apex anterior and depressed, bounded laterally by the frons and at 

 the base by the ligula. Labrum undeveloped. Mandibles articulated with the 

 slightly protuberant gense opposite the middle of the inferior orbits of the eyes, 

 closing together beneath the ligula with their points crossed, but when open obliquely 

 prorect ; in form very acutely triangular, curved outwards moderately towards the 

 point and somewhat triquetrous ; minutely pubescent externally. Maxillae un- 

 developed. Ligula largely developed, undivided, prominent and obtusely rounded 

 in front (so far as one can judge, allowing for shrinking and perspective). Labium 

 short and vertical ; palpi inserted at the anterior lateral margins of the labium, 

 2-jointed, with the basal joint short, the 2nd elongate and subulate, obliquely 

 prorect. 



Prothorax and mesothorax both very short and transverse ; pronotum longer 

 and a little wider than the mesonotum ; prosternum inversely shorter than the 

 mesosternum. Metathorax massive, longer than broad ; postscutellum ending in a 

 short projection over the basal half of the 2nd abdominal segment. 



Intermediate legs closely approximated to the anterior, and remote from the 

 hind legs. Anterior coxal cavities open behind ; intermediate coxae stouter than the 

 anterior, which are transverse. Trochanter elongate in the two anterior pairs, short 

 in the hind leg. Tibiae spurless. Tarsi 2-jointed ; basal joint oblique and concave 

 posterioi'ly, ending in an obtuse lobe ; 2nd joint claviform, more slender in the fore 

 tarsus than in the hinder tarsi, rounded at the tip and furnished with numerous 

 papillate hairs, but without claws, and inserted in the concavity of the 1st joint. 



