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METAMASIOPSIS. 



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basal overlapping portion deeply sulcate down the middle ; metasternum flattened, broad and bisinuate 

 in front ; femora subclavate, smooth or very sparsely punctate ; tibiae toothed at the outer apical angle 



(fig. 5 b) y fringed with extremely short hairs on the inner edge; third tarsal joint moderately large, 

 spongy-pubescent beneath ; body elongate-elliptic or subfusiform, the elytra spotted or fasciate. 





Type, M. rugipectm. 



The three Mexican forms referred to this genus are closely related to Metama&ius 

 (type, Calandra sericea, Oliv.), but differ from it in having the tibiae toothed at the 



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outer apical angle. There are various S. -American species, including Sphenophorus 



; 



costatus, Waterh., from Colombia. Heterotoxus transatlanticus. Kirsch, from Ecuador 



7 7 7 7 



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(the type of which I have seen *), with similarly formed tibiae, but these southern 

 insects have the femora abruptly excavate and dentate towards the apex. 

 The three species of Metamasiopsis are separable thus : 



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a. Prosternum rugose and clothed with minute hair-like scales: 



anterior and intermediate coxse moderately separated ; rostrum 

 and legs short, the femora very sparsely punctate ; elytra each 

 with two curved transverse lines ot small ochreous spots on the 



J pygidium very prominent 



Prosternum very sparsely punctate, hare ; anterior and intermediate 



rugipectus, sp. n. 



coxae more widely separated ; rostrum and legs longer, the femora 

 almost smooth and glabrous. 

 a 1 . Elytra each with two angular ochreous fasciae on the disc . . flavopictus, sp. n. 



. . . 



Elytra each with two transverse lines of small ochreous spots 



decempunctatus , sp. n. 



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1. Metamasiopsis rugipectus, sp. n. (Tab. V. figg. 5, 6 a, b, $ .) 



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Elongate, fusiform, rather narrow, convex, subopaque and alutaceous above ; black, the elytra each with a 



curved transverse series of small ochreous spots below the base, two small, oblong, similarly-coloured, 

 obliquely-placed spots on the disc beyond the middle (one on the third and the other on the fifth inter- 

 stice), and an oblong ferruginous streak near the apex. Head sparsely, finely punctate, the frontal fovea 





small ; rostrum moderately stout, curved, barely half the length of the prothorax, very finely, sparsely 

 punctate, the peduncle of the submentum with a compressed prominence at the apex. Prothorax con- 

 siderably longer than broad, slightly rounded at the sides, feebly bisinuate at the base, gradually narrowing 





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anteriorly ; impressed with extremely minute widely-scattered punctures, those in front of the scutellum 



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larger and deeper. Scutellum elongate-triangular, narrow, flat, and impressed with a row of transverse 



Elytra a little wider than the prothorax, oblong-subcordate, separately rounded at the apex : 

 crenate-striate, the interstices convex, each with a row of very minute punctures down the middle. 



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Pygidium long, porrect, very coarsely punctate, subcarinate. Beneath somewhat thickly punctate along 





the sides, the prosternum transversely rugose and set with minute hair-like scales, the ventral segments 

 unimpressed. Legs short ; femora very sparsely punctate. 

 Length 12, breadth 4 millim. ( £ .) 



" \ Mexico, Cerro de Palmas f {Hoge). 



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w Heteroxus, Lac, type H. grains, Lac, from Java, is unknown to me, and the Ecuador insect does not 





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possess several of the characters assigned to that genus. 



f Incorrectly given as u Cerro de Plumas " in various places in the preceding volumes of this work, owing 



to a mistake in labelling. 



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