revision of the LumpyridcE. 9 



opaque, the yellow of the elytra extends a little near the 

 suture and margin towards the apex. Two luminovis 

 spots on seventh segment. 



Ecuador, Brus. M. ; a single specimen. 



Cladodes plumosa, n. sp. 



Croceo-flava, antennis, palpis, elytrorum dimidio apicali, 

 abdomine, tibiis, tarsisque nigris, thorace brevi angulis 

 posterioribus sub-rotundatis. 



Long. lin. 7^. 



Head yellow, antennas and palpi much as in Cfiahel- 

 licornis, M. Thorax of a different form to any of the 

 preceding species, having the sides much more rounded, 

 and contracted in to the hind angles, which are not pro- 

 duced, but meet the base (which is truncate, slightly 

 sinuous) in an obtuse angle. Their anterior and lateral 

 margins are hardly reflexed. Sides roughly, sub- 

 rugosely punctured, disc nearly smooth, obsoletely cari- 

 nate. Elytra Avith the sides little expanded, of the 

 width of the thorax, the apical half smoky-black. 

 Abdomen with the lateral lobes of the dorsal segments 

 well developed, more rounded, and not so much produced 

 backwards as in JlabelUcornis, the abdomen is hence 

 wider and broader at the apex, the two luminous points 

 of the ventral sixth segment are small, smooth, whitish and 

 a little convex, they do not show through to the dorsal or 

 pygidial surface, as is the case in some other species of 

 Cladodes, and it may be hence concluded their light is 

 only visible from beneath. The sterna, coxre and femora 

 are entirely of the crocus-yellow colour of the thorax 

 and half-elytra, and this chai'acter alone separates this 

 elegant species from any other of its allies ; it is, however, 

 similar in this respect to the insect described in this paper 

 as Phcunolis laciniatus. 



Nicaragua (Chontales) ; coll. Godman and Salvin. 



Alychnus, Kirsch., Berl. Ent. Zeit. 1865, p. 71. 



Pygidium in the male angularly emarginate, in the 

 female rounded. (Plate, fig. 9.) 



This singular genus combines the characters of Luci- 

 dota Avith those of Photinus, the shortening of the elytra 

 in the 2, together with a moderate enlargement of the 

 abdomen (which is sublobate in the $ ), is associated with 

 apparently a total loss of luminosity, testified both by the 



