ORA. 603 



affinities were noticed by Chapuis *. In addition to 0. grayi, Clark, from Brazil, and 

 0. chevrolati, Clark (=troberti, Guer., nee Horn), from Mexico and Guatemala, and 

 the various species here described, the genus includes Scyrtes complanatus, Guer., 

 from Brazil, and probably the Cuban Scirtes sexlineatus and S. interruptus, Chevr., 

 the eastern S. pictus (Fabr.), and others. In several of the Central-American species 

 the elytra have intermixed coarser punctures, these bearing longer hairs than the fine 

 punctures. The male of 0. discoidea, and probably that of the other species also, has 

 the fifth ventral segment emarginate at the apex. These insects, like many Scirtes, 

 appear to live upon various species of Salix. 



Form oblong, rather depressed ; elytra strongly explanate at the sides, uniformly 

 punctured, with interrupted, partly confluent, light and dark stripes : body 



apparently glabrous above : length 6 millim. troberti. 



Form broad-oval, depressed ; elytra more or less explanate at the sides, with inter- 

 mixed coarser punctures and (except in pale varieties) distinct markings ; body 

 pubescent, the elytra with intermixed slightly longer hairs. 

 Elytra pale testaceous, with a rather narrow oblique black or piceous stripe on the 

 disc, strongly explanate at the sides, the surface densely, minutely punctate, 



with distinct intermixed coarser punctures : length 4-4J millim obliqua. 



Elytra pale testaceous, with a very broad black or piceous stripe on the disc, 

 moderately explanate at the sides, the surface more strongly punctate, with 



indistinct intermixed coarser punctures : length 4^-5 millim discoidea. 



Elytra pale testaceous, with numerous irregular partly coalescent spots, moderately 



explanate at the sides, the punctuation as in 0. obliqua : length 4-4^ millim. . marmorata. 

 Elytra pitchy-black, with irregular fiavous spots along the sides, base, and suture : 



length 3 millim mixta. 



Form oval, rather convex ; elytra moderately explanate at the sides, immaculate, the 



punctuation uniform : length 4 millim nigricurnis. 



1. Ora troberti. (Tab. XXVI. figg. 24; 24 a, hind coxse.) 

 Scyrtes trobertii, Guer. Rev. et Mag. Zool. 1861, p. 545 (nee Horn) \ 

 Ora chevrolatii, Clark, Journ. Ent. ii. p. 385 (1865) 2 . 

 Ilab. Mexico x 2 ; Guatemala, Panzos (Champion). 



Our two examples from Panzos agree very nearly with Clark's type in the British 

 Museum, and also with Guerin's description, except that they have the longitudinal 

 streaks on the elytra more interrupted. In the Panzos specimens the elytra are 

 brownish-black (instead of brown or reddish-brown), with the suture, base, and sides, 

 three or four partly coalescent elongate streaks below the base (the second extending 

 forwards), an angulated postmedian fascia, and a similar ante-apical fascia (both appearing 

 as if formed by short coalescent streaks), yellow. They have the antennae black, with 



* Gen. Col. xi. p. 144, nota. 



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