188 Coleopterological Notices. 



cylindrical, the last two subequal in length and together but slightly longer 

 than the first. MaxilUv large, greatly exposed and prominent, especially 

 toward base, the basal plate not in the least spinose ; outer lobei well devel- 

 oped, lunate, corneous, with the apex acute, the inner edge fringed with 

 moderate setae ; inner lobe not made out. Maxillary pal/ii very large, conspicu- 

 ous, sparsely setose and irregular ; basal joint small, rather longer than wide, 

 distinct ; second extremely asymmetric, slightly transverse, feebly convex on 

 the outer side, deeply excavated on the inner ; third longer than wide, longer 

 than the second, ovoidal, gradually pointed, convex on the outer side, broadly 

 excavated on the inner, the fourth joint minute and spiniform, not oblique. 

 Mandibles moderate, not made out, closed in the type. 



Prothorax slightly wider than the head and a little wider than long ; sides 

 nearly straight and i)arallel ; apex broadly strongly arcuate and rounded into 

 the sides, the apical angles obsolete ; base truncate throughout the width and 

 very feebly arcuate, the basal angles nearly right and very narrowly rounded. 

 Proiiotum extremely feebly, evenly convex, not impressed, shining, excessively 

 minutely, sjaarsely, subasperately punctate, each point bearing an excessively 

 minute erect pale setiform hair ; disk with two very widely distant subbasal 

 setse, and four, forming a trapezoid, in the apical half; viewed laterally the 

 flanks are narrow and perpendicular, scabrous, the lower edge sinuate just 

 behind the deflexed apical angles, which are acute and continued in front of 

 the coxae by the extremely short and almost lamellate ante-coxal prosternal 

 piece. Pi-osternum extremely short, not one-third as long as the pronotum. 

 Anterior coxck. very long, loosely attached in the large membranous cavities, 

 finely scabrous, almost glabrous ; femora long, the upper edge strongly arcu- 

 ate, the tibiae as long as the femora, coarsely, rather densely setose within, 

 with two external rows of long slender widely-spaced setiform spines. The 

 disk of the pronotum in the male is very slightly wider, and more distinctly 

 longer, than the head ; in the female the head is quite noticeably smaller, 

 with the tempora not quite so prominent. 



Mesothorax moderate in length. Scutellum rather large, transverse, ogival, 

 in large part covered by the pronotum. Parapleune of the mesosternum finely 

 scabrous, large and well developed. Poxie very large, long, oblique, contigu- 

 ous ; trochanters moderate, with a short obtuse dentiform process within, the 

 femora rapidly narrowed near the point of attachment on the trochanters, the 

 tibiae similar to the anterior but less densely setose within. 



Metasternum well developed. Elijtra equal in length and basal width to the 

 corresponding dimensions of the pronotum ; sides straight and parallel, each 

 elytron distinct, the two separated by an interval, which at the apex is equal 



1 In insolens the outer lobe is shorter, wide, arcuate, the apex truncate inter- 

 nally and bearing a row of short still spinules ; the inner lobe is very short, 

 adjacent to the outer, the base obliquely corneous, the remainder semimem- 

 branous, the apex with a row of short spinules almost continuous with those 

 of the outer lobe. The disposition of the lobes is somewhat similar therefore 

 to that of Homalota and Euryusa. 



