A452 PERCY SLADEN TRUST EXPEDITION 
71. Microplatymerus lodoiceivorus, n. sp. (Pl. 24, figs. 37, 37 a—c.) 
Rufo-testaceous, the eyes black, shining, finely flavo-pubescent. Head smooth ; 
rostrum about half the length of the prothorax, sparsely, finely punctate. Prothorax 
large, broader than long, gradually narrowing from a little before the base to the 
extremely short collar-like apical portion, the sides rounded towards the base and apex, 
the hind angles obtuse, the base subtruncate ; sparsely, minutely punctate, the punctures 
becoming coarser and more closely placed towards the sides, the dise with a narrow 
smooth space down the middle. Elytra barely one-half longer than the prothorax, 
conjointly rounded at the apex ; sharply striate, the striz feebly punctate, the interstices 
broad, flat, each with an irregular row of extremely minute punctures. Beneath very 
sparsely, minutely, the lateral portions closely and somewhat coarsely, punctate, the 
metathoracic episterna smooth, Intermediate and posterior tibiz each with two minute 
teeth at the outer apical angle. 
Length 13—2 mm. 
Loc. Seychelles: Praslin. 
Nearly one hundred specimens of this insect were obtained by Mr Scott from the 
leaf-bases of a growing $ Coco-de-mer palm (Lodoicea seychellarum), in the Vallée de Mai, 
on Nov. 28th, 1908. 
Group Trypetina. 
The three genera placed in this group, like some of the American Trypetina, probably 
attack palms. Certain New Zealand forms at present referred to Cossonide (e.g. Pogo- 
norrhinus and Arecophaga) would doubtless be better included here. 
HoMALORRHYNCHUS, n. gen. 
Rostrum long, slender, dissimilarly formed in the two sexes—nearly straight, 
flattened, and rugose in ¢, cylindrical, arcuate, and polished in $,—the antenne inserted 
at (¢) or considerably beyond (2) the middle, the scrobes inferior, extending to beneath 
the eyes; antennz slender, the funiculus 7-jointed, the club oval, annulate, shining, 
sparsely pubescent ; head large, somewhat deeply inserted, the eyes oval, transverse, 
moderately large, placed on the anterior portion immediately behind the base of the 
rostrum ; prothorax rounded laterally, sometimes broader and subglobose in g, truncate or 
feebly sinuate at the base, with a short, narrow anterior lobe; scutellum small; elytra 
oblong ; coxee widely separated ; mesothoracic epimera not ascending ; metasternum long 
the episterna narrowly exposed; ventral segments 1 and 2 long, connate at the middle, 
3 and 4 extremely short, the sutures straight; legs elongate; femora clavate, slender at 
the base, unarmed ; tibize almost straight, feebly unguiculate at the outer apical angle ; 
tarsi sparsely pilose, spongy-pubescent beneath, joint 1 small, 2 triangular, 3 bilobed, 
the lobes long and divergent, densely ciliate at the tip, the claw-joint long, the claws 
simple, free or subconnate ; body elongate, rather convex, finely pubescent, in one species 
with small patches of scales, winged. 
Type, H. serripes, 
