



'. 



■ 



■ 



■ 



METAMASIUS. 



107 



■ 







■ 



■ 



■ 



3. Metamasius quadrilineatns, sp. n. (Tab. V. figg. 11, 11 a, e .) 











d . Subfusiform, depressed, opaque above, shining beneath ; black, the prothorax with two broad, posteriorly 

 bifurcate, vittge on the disc (leaving a complete median stripe, a streak on each side of it on the basal 

 half, and the margins, black), and the elytra with a sharplv -denned elongate streak on the fifth interstice 



below the base, a much shorter streak on the third interstice beyond the middle, and various narrow 

 lines on the rest of their surface (that near the suture extending the entire length), ochreous or ferru- 

 ginous ; the under surface with various spots and streaks along the sides and a subtriangular patch on 



- 

 ■ 



■ 



the middle of the first ventral segment, and the pygidium, femora, and tibiae in part, ferruginous. 



Eostrum 



sparsely, obsoletely punctate, the widened basal portion with a short impressed line, the frontal fovea 

 small. Prothorax slightly longer than broad, rapidly narrowed from about the middle, the sides parallel 

 behind, the base feebly bisinuate ; flattened and almost smooth on the disc, sparsely punctured along the 

 outer margin. Scutellum narrow, elongate-triangular, hollowed down the middle. Elytra considerably 

 wider than the prothorax, oblong-subcordate, finely punctate-striate, the interstices somewhat convex, 



_ - -»-v . ■, T it T i 1 it J _ i_ ,1 i 1 



Pygidium sparsely punctate. Beneath sparsely, rather coarsely punctate, the metasternum and ventral 



segments 1-4 with a very broad almost smooth space down the middle, the fifth segment transversely 

 depressed at the apex. Anterior and intermediate coxae with a small tuft of hairs. Femora and tibiae 

 finely ciliate, the posterior tibiae with very long curled hairs at the middle, these becoming shorter 



towards the apex. 



L 



. ■ 





3i millim. 



Eab. Mexico, Colonia (Flohr) ; Guatemala, Purula in Vera Paz (Champion 



■ 



Two males, with the markings precisely similar. Separable from all the allied 



■ 



by the lineate markings of 



fifth interstices each with 





very sharply defined ochreous streak 





- 



■ 





■ 







4. ILetamasius polygr animus. (Tab. V. figg. 12, 12 a, &.) 



Sphenophorus polygrammus, Gyll. in Schonli. Gen. Cure. iv. p. 918 \ 



Subfusiform, pruinose, ferruginous, the prothorax with three vittse on the disc and another on the flanks, the 

 elvtra with numerous interrupted lines, and sometimes a triangular patch on the disc before the middle 

 (bordered in front and behind by several reddish spots), and the under surface with various streaks and 

 spots, inf uscate or black. Eostrum arcuate, nearly as long as the prothorax, moderately stout, compressed, 

 canaliculate beneath, sparsely punctate, subcarinate, the abruptly-widened basal portion more coarsely 

 punctured, that of the $ with the apical portion subcylindrical and almost smooth. Prothorax longer 



, flattened behind and declivous anteriorly, broadly depressed in the middle posteriorly and also 

 hollowed near the hind angles, sinuously swollen laterally at about the middle and obliquely narrowed 



I 



thence to the apex, strongly bisinuate at the base ; sparsely, somewhat coarsely punctate. Scutellum 

 elongate- triangular, narrow. Elytra broad, subcordate, the striae fine and with rather coarse scattered 

 punctures, the alternate interstices convex and slightly widened. Pygidium sparsely punctate, tumid 

 and setulose along the middle posteriorly. Beneath sparsely, coarsely punctate ; ventral excavation of 

 the c? l° n g? broad, and rather shallow. Tibiae curved. 

 Length 7-12, breadth 2f-4§ millim. ( tf $ .) 



Hah. Nicaragua, Chontales (Belt, Janson) ; Costa Rica, Pozo Azul (Underwood), 



■ 



San Carlos (Pittier ; U.S. Hat. Mm.) ; Panama, Bugaba (Champion), Ancon (Jennings 



in U.S. Hat. Mus.) .—Ecuador ; Brazil 1 , Bahia, 





Rio 



_ 



Twelve examples, agreeing with others before me from the above-mentioned 



in Brazil. A very close ally of M. melanchoHcus (Gyll.), but separable 



, 



' 





' ■ 





■ 



■ 









■ 



