147 



than the second ; 4-8 often very short, transverse, sometimes gradually 

 widened; 9-11 much incrassated, forming a subfoliate club. 



Ma.cillarii palpi (PI. YL, A, fig. 5, w) short and very robust, four-jointed; 1 very 

 small, obconic ; 2 rather pear-shaped, very large, and turgidly incrassate, 

 broadly truncate, and concave at the apex ; 3 broad, very short and trans- 

 verse, furnished with short setse on the outer side ; 4 elongate, slender, 

 obtusely conic. 



Labial pulpi (PL VI., A, fig. 6, m) large and very robust, three-jointed; 1 small, 

 transverse ; 2 very large, somewhat pear-shaped, turgidly incrassate ; 3 obtusely 

 conic, faintly recurved. 



Lahrum (PI. VI., A, fig. 3) rather broad, semioval, with two small lilunt deuticula- 

 tions at the middle of the anterior margin. 



Mandihh's (PI. VI., A, fig. 4) robust, much rounded at the back, of which the lower 

 margin from the apex to the base is produced into a very convex hollow pro- 

 cess, inclining towards the inner edge of the 'mandible, deeply serrate at its 

 edge, and armed at its base with very long sharp sinuated teeth ; the inner 

 edge of the mandible itself is simple and somewhat produced at the base, and 

 its apex bluntl_y hooked. 



MaxilUe (PI. VI., A, fig. 5) unilobed, with the lobe large and strong, obliquely 

 excavated at the apex, and armed with many sharp setiform teetli, the apex 

 itself incurved and verj' acute. Stipes small. 



Menttim (PL VI., A, fig. 6, j) rather large, subquadrate, rather dilated at the 

 base. 



Labium (PL VI., A, fig. 6, k) short and broad, furnished at its anterior extremity 

 with large obtusely conic paraglossffi, hairy on their inner margin. 



Lingua (PL VI., A, fig. 6, 1) very large and very broad, extending beyond the labial 

 jjalpi. 



Pronotum generally small, transverse, entire, and either circularly or ovally rounded 

 in front, with the basal angles not produced. 



Scutellum small, usually rounded. 



Elytra large, entire. 



Wimis ample, with the nervures strong at the narrow basal portion, but incon- 

 spicuous in the membrane ; there is also an elongate oval winglet on the hinder 

 margin of the basal portion. 



Abdomen apparently composed of seven segments, of which the two apical are 

 corneous, and the remainder membranaceous. 



Prothora.v very small, with the jii'osternum (PL VI., A, fig. 2, a) very short, broadly 

 elevated between the coxse ; episterna minute, scarcely perceptible ; epimera 

 small, enclosing the coxal cavities behind ; coxal cavities small, elongate, and 

 narrow, not contingent. 



Pectus with the mesosternnm (PL VI., A, tig. 2, d) very short, deeply excavated in 

 front ; episterna rather large, subquadrate ; epimera humeral, rather long, not 

 reaching the coxal cavities ; coxal cavities rather large, oblique, oval, 

 moderately distant. 

 inetasternum (PL VI., A, fig. 2, g) large, transverse, not extending to the sides of 

 the bodj^ posterior margin between the coxa straight ; episterna very large and 

 broad, not reaching to the coxne ; epimera long, broadly inflexed beyond the 

 episterna, in other parts concealed by the elytra. 



Venter short and broad, composed of six segments, basal segment large and long, 

 the rest short, equal to each other in length, apical segment entire. 



Legs anterior with the coxae long and narrow, not prominent ; trochanters small, 

 trigonal ; femora simple, generally robust ; tibiae moderate, compressed, 

 generally dilated near the middle ; tarsi often robust, four-jointed ; 1 rather 

 long ; 2 shorter than the first, with its anterior extremity much produced on 

 the under side, and deeply bifid ; 3 very small ; 4 elongate and slender ; claws 

 slender and moderately curved. 



