35 



^nigmaticum elongatum, LeConte. 



Orthoperus elongatus, Lee. Proc. Amer. Phil. Soe. xvii. i>. 399, 1878. 

 0. Ptilioides, Matthews, Biol. Cent. -Amer. Col. ii. ])t. i. p. 105, 1887. 



L. c. ^^ lin. = "75 mm. — Elongato-ovale, modiee convexum, 2)er totum fortiter 

 eleganterque alutaceum, rufo-brunneum, 23fii"iim metallescens ; capita modico, 

 antice producto, prominenti, alutaceo, iiunctis sat magnis remotis impresso ; oculis 

 magnis, valde prominentibus ; pronoto sat magno, i^rope medium latissimo, 

 profunde alutaceo, punctis magnis, remote et regulariter dispositis, ornato, lateribus 

 valde rotuudatis, marginatis, et minute crenulatis, margine basali fere recta, angulis 

 fere rectis ; elytris magnis, capite atque pronoto parum latioribus, plus quam 

 sesqui longioribus, ante media latissimis, profunde alutaceis, punctis remotis, 

 striatim dispositis, indistincte notatis, stria suturali circa scutellum ad humeros 

 elytrorum exteusa, lateribus ovaliter rotundatis, leviter marginatis, apicibus latis, 

 valde rotundatis ; pygidio exserto, rufescenti ; pedibus rufo-piceis ; anteunis liavea- 

 centibus, clavis obscurioribus. 



Body elongate-oval, moderately convex, strongly and elegantly alutaceous through- 

 out, reddish-brown, with a metallic gloss. 



Head moderate, produced in front, prominent, alutaceous, marked with a few large, 

 remote punctures ; eyes large and very prominent ; antennae rather long, 

 flavescent, with the club dusky. 



Thorax rather large, widest near the middle, deeply alutaceous, elegantly marked 

 with large, remote, and equidistant punctures ; sides much rounded, margmed, 

 and minutely crenulate at the edge ; basal margin nearly straight, with the 

 angles nearly right angles. 



Scutellum large, obtusely triangular, alutaceous. 



Elytra large, rather broader, and more than one-half longer than the head and 

 thorax, widest before the middle, deeply alutaceous ; indistinctly marked with 

 remote punctures arranged in longitudinal striae ; sutural stria distinct, and 

 jirodueed round the scutellum to the humeral angle of the elytra ; sides ovally 

 rounded, and slightly mai'gined ; extremities broad and much rounded. 



Abdomen with two and part of the third segments exposed, rufo-piceous. 



Leys rather long, rufo-piceous. 



Under-jMTts pitchy-black. 



Habitat, Central America, found by Mr. Champion in the city of Guatemala, and 

 near Caj^etillo, Guatemala. 



Obs. — I described this as a new species in the Biologia Cent. Amer. Col. II., 

 Pt. I., p. 105, 1887, from specimens taken by Mr. Champion in Guatemala, but I 

 have lately (January, 1894) been informed by Capt. T. L. Casey, U.S. Engineers, 

 that it is identical with Orthoperus elongatus described by Dr. Le Conte in the 

 Proc. of the American Philosophical Society, xvii. p. 399, 1878. Capt. Casey 

 has carefully examined the original types in the collection of Dr. Le Conte, now 

 preserved in the University Museum at Cambridge, Mass., and, from his accurate 

 knowledge of minute Coleoptera, I feel no doubt that his determination will prove 

 to be correct. In this case the specific name given by Dr. Le Conte must be 

 retained, and the species be termed in future JEnigmaticum elonyatwm, Le Conte. 



ECTINOCEPHALUS. Pl. I. B. 



Ectinocephaliis, Matthews, Biol. Cent. -Amer. Col. ii. pt. i. p. 105, 1887. 



Corpus elongatum, obconicum, pubescens. 



Caput totum exsertum, baud retractile, ad marginem anteriorem pronoti aptatum, 



ore prominenti, parte gulari convexa ; oculis modicis, prominentibus ; anteunis 



sat longe ante oculos insertis. 



