HERIADES. 
289 
rather broadest at the base and slightly waved late¬ 
rally, concavo-convex and subemarginate at the apex; 
mandibles subequal, tridentate at the apex, and the cen¬ 
tral tooth obtuse; cibarial apparatus moderately long, 
tongue twice the length of the labium, with a small 
knob at its apex; paraglossae very short, almost obsolete, 
coadunate at the base; labial palpi two-thirds the length 
of the tongue, the two first joints membranous and long, 
the first one-third the length of the second, which 
tapers to its acute extremity, before the end of which 
the two terminal, subclavate, very short, subequal joints 
are inserted; labium half the length of the tongue, 
slightly produced in the centre of its inosculation; 
maxillae subhastate, two-thirds the length of the tongue ; 
maxillary palpi three-jointed, short, robust, equal, and 
collectivelv subfusiform, the terminal one rather acute. 
Thorax globose; prothorax inconspicuous ; scutellum 
lunulate ; post-scutellum linear, transverse ; metathorax 
declining; wings with two submarginal cells, and the 
commencement of a third indicated, the second larger 
than the first, subtriangular, and receiving both the 
recurrent nervures, one at each of its extremities; legs 
short, rather robust, subsetose and spinulose; posterior 
tibiae convex externally and with their plantee rugose, 
the latter covered beneath with a dense brush of short 
hair; claws simple. Abdomen cylindrical, convex above, 
retuse at the base, and the first and second segments 
slightly constricted at their extremity, obtuse, and from 
the end of the third segment sensibly declining to the 
apex; plane on the venter, where, from the second seg¬ 
ment, the plate of each, excepting the glabrous terminal 
one, is covered with a dense brush of short hair for the 
conveyance of pollen. 
IT 
