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EHTNCHOPHOEA. 



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tETHES. 







Mthes, Chevrolat, Ann. Soc. Ent. Fr. 1882, p. 583. 







The type of this genus is an extraordinary insect totally unlike any American form 



known to me, and it is probable that it will prove to be of eastern origin, and not 



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from Mexico as stated, some mistake having perhaps been made in labelling. The 

 principal characters of Mthes are : — 





Rostrum stout, curved, sulcate and hairy beneath in cf , feebly dilated at the apex, deeply sulcate at the base 

 above, the slightly widened basal portion short; peduncle of the submentum narrow, flattened, shallowly 

 sulcate ; antennal club flattened, moderately large, bluntly rounded at the tip, the opaque apical portion 

 short ; prothorax obliquely truncate on each side at the base and armed with two short spines on each 

 side at the apex ( cf ) ; scutellum small, oblong-subtriangular ; elytra oblong, separately rounded at the 

 apex, the dorsal interstices subcostate anteriorly ; pygidium broad, raised at the sides and carinate down 

 the middle, pilose ; anterior coxae narrowly, the intermediate coxae widely, separated ; prosternum with 

 a bilobate overlapping basal process ; metasternum flattened, the intercoxal process bisinuate in front ; 

 femora unarmed, feebly sinuate and very hairy beneath ; tibiae toothed at the outer apical angle, densely 

 ciliate within, the hairs longer on the anterior pair ( <$ ) ; tarsi with joints 1-3 spongy-pubescent beneath, 

 3 very large ; body elongate-elliptic, flattened above, covered with a dense incrustation relieved by large 

 velvety-black patches on both the prothorax and elytra. 



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l. JSthes spinicollis. (Tab. V. figg. 4, 4 a, 6.) 



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JBthes spinicollis, Chevr. Ann. Soc. Ent. Fr, 1882, p. 583 \ 



3 . Ventral segment 1 broadly depressed down the middle, 5 also excavate posteriorly and furnished at the 

 apex with two clusters of erect fulvous hairs. For other characters, as to clothing of the femora, tibiae, 

 and rostrum, and the armature of the prothorax (some of which are certainly peculiar to the c?), see 

 the definition of the genus, supra. 



Eab. Mexico (coll. Chevrolat, ex coll. Lacordaire 



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The unique type ( c? ) of this species has been kindly communicated by Dr. Sjostedt, 

 of the Stockholm Museum, and we take the opportunity of figuring it. " Spheno- 

 phorus " dehaani, Gyll. (a species not mentioned by Chevrolat in his papers on the 

 genus), and its allies, from Java, &c, seem to be somewhat nearly related to Mthes. 



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METAMASIOPSIS, gen. nov. 



Kostrum stout, curved, cylindrical, the antennae inserted very near the base, the widened basal portion short ; 

 peduncle of the submentum narrow, not sulcate, sometimes with an angular or tuberculiform prominence 

 anteriorly ; scutellum long, narrow ; pygidium large, prominent ; anterior coxae moderately, the inter- 

 mediate coxae much or less widely, separated ; prosternum considerably developed behind the coxae, the 





. Three specimens — two from Nicaragua and Costa Rica respectively with an ochreous 

 fascia on the elytra and one from Mexico wholly black. Not unlike E. graphipterus, 

 but much smaller, the median lobe of the prothorax less produced, the metasternum 

 not protuberant. The elytral sculpture is similar to that of Caetophagus striatoforatus . 

 Sturm's MS. name is misleading and best ignored. An allied form occurs in Peru. 

 The Costa Rican example is figured. 



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