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184 Mr. H. E. Andrewes’ Notes on Synonymy 
Genus MrLAENUS. 
Ligula narrow, corneous, widened and hollowed out at apex, 
with a sharp longitudinal ridge beneath, truncate, bisetose; para- 
glossae whitish, filamentous, free, rather longer than ligula. Mazillae 
setose on inner side and in addition with a row of long bristles, apex 
bare, sharp, strongly hooked: outer lobe with two equal joints, 
stipes with a long bristle on outer side near base, another near apex. 
Maxillary palpi with antepenultimate rather longer than last joint, 
glabrous (except at apex), penultimate rather shorter than last 
joint, dilated towards apex, setose, last joint setose, a little inflated, 
truncate at apex: labial palpi with last two joints about equal in 
length, penultimate bisetose on inner side near apex, but with 
some smaller setae nearer base, last joint cylindrical, setose, con- 
tracted at base, subtruncate at apex. Mentwm short, with a fine 
but well-marked suture, moderately emarginate, with a simple 
median tooth rather shorter than lobes, last named rounded at 
sides and apex, contracted towards base; epilobes very wide, 
rounded, extending far in front of lobes. Mandibles short, slightly 
hooked at apex, a seta in the scrobe, right one with two teeth near 
middle, left one with one tooth near base, upper surface longitudinally 
strigose. Labrwm small, front angles rounded, slightly emarginate 
in front, sexsetose. Antennae reaching middle of elytra, joints 
1-4 glabrous, 5-11 densely setose; 1 short, cylindrical, with a 
single seta on upper surface near apex, 2 very short, 3 and 4 with 
a few setae at apex, 3 equal to and 4 a little shorter than 1, 5-11 
distinctly longer than 1, flattened, with a longitudinal ridge down the 
centre of each. Hyes very small, not prominent, distant from 
buccal fissure, one supraorbital seta; temporal suture visible 
beneath eye. Prothorax cordiform, a single seta on each side at 
a fourth from apex, none at basal angle, base bordered by very 
fine yellowish hairs, its sides oblique close to hind angles; front 
coxal cavities with a single internal opening. lylra with base 
pedunculate, scutellum small, cordiform, inserted between elytra 
on their pedunculate part, sides sinuate before apex, and with an 
internal fold visible at that point; nine deeply punctured striae, 
9 merged in 8 before reaching base, the united stria rounding the 
shoulder, and continuing to the point where the border ends over 
stria 5,9 ending behind at the apical sinuation, 8 continuing to 
apex, scutellary striole wanting; base unbordered over first four 
intervals on each side, intervals 1-8 ending in a ridge behind, 
which runs parallel with apical border, so that striae 1—7 all end 
before apex, striae 1-4 have each a deep puncture in front of but 
detached from it; a few long setae, chiefly near base and apex, 
arising from a series of umbilicate pores on stria 9. 
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