98 Rev. H. S. Gorliam's materials for a 



Megalophtholmus collaris, Guerin, Rio. Zool. 1843, p. 18. 



Columbia ; Mus. Brus. (Type.) 



Obs. — Resembles an Amytheles, but the anteniiEC are 

 eleven jointed, with equal lamellfB, and are not more than 

 twice the length of the head and thorax. The elytra are 

 pitchy black, with slightly raised nervures. The thorax is 

 pale, tubercularly elevated on each side of the disc, 

 miniate ; scutellum pale, whitish. The abdomen of the 

 type is gone. 



Megalophthahnus marglnatus, Guerin, Wien. Verzeich. 

 V. p. 579. 



Columbia ; Mus. Brus. (Type.) 



3Iegalophthalmus melanurns, Cast. Essai. 131. 

 Peru ; coll. Gorh. [Norris]. Chili ; Mus. Brus. 



Ohs. — This species does not belong to the genus ; it will, 

 I think, come near Lucidota. I have only seen two speci- 

 mens, which vary in size, one being 3, the other 5 lines in 

 length. 



MegaloplLtlialmns Guatemalce, n. sp. 



Niger, opacus, elytris tricostatis, costis duabus exte- 

 rioribus ad apicem conjunctis, prothorace fulvo, disco 

 carinato, utrinque tuberculato, margine elevato. Scutello 

 flavo. 



Long. lin. oh — 4. j*. 



Allied to 31. costcdus, Cast., diflfcrs in being more linear ; 

 in having the disc of the thorax scarcely darker, not in- 

 fuscate ; by the antennre being quite black, as well as the 

 legs (with the exception of the anterior coxae, which are 

 yellow). The first costa on the elytra terminates rather 

 more than one-third from the apex, the second and third 

 (the humeral one) coalesce shortly before the apex, which 

 the single branch reaches, in which respect this species 

 differs from costatus or obsoletus, but resembles collaris, 

 with the exception that the apical branch is there very 

 short and evanescent. I am not able to decide certainly 

 which is the luminous segment, but it seems to be the 

 fifth ; it is reddish brown at the base and eburated white at 

 its apical margin. The pygidium is lobed at the sides, 

 rounded at the apex. 



Guatemala, Zapote ; coll. Godmau and Salvin. 



