Capt. P. P. King's South American Coleoptera. 463 



*115. NyCTELIA UNDATIPENNIS, Cuvt. 



Laevis nigra, elytris sulcis 7 brevibus latis transversis in margine exteriore 



(Tab. XLI. fig. 10.). 

 Length 8 lines ; breadth of male 4^, female 5 j. 



Smooth shining black : clypeus emarginate and coarsely punctured : thorax transverse, de- 

 licately punctured in front, a little narrowed and emarginate, forming acute triangular 

 angles, the base bisinuated, the angles produced and trigonate ; sides slightly convex and 

 punctured, the margin very narrow and indistinctly crenated, the disc convex ; scutel 

 invisible : elytra ovate, almost orbicular in the female ; the suture sunk, except towards 

 the apex ; sides narrowly keeled and crenated ; from thence extend 7 transverse, broad, 

 oval grooves, forming narrow raised spaces, about half the breadth of the elytra, and 

 slightly inclining downward; the apex narrowed and forming an oval sloping tail, 

 slightly scabrose : legs moderately long and stout : anterior tibiae with an external spine, 

 the others scabrose : lobe of pectus broad at the apex, with 2 punctured grooves. 



Taken at Port St. Elena by the same officer in December. It may be allied 

 to N. plicatipennis, Lacordaire. 



\ 16. Nyctelia FiTZROYi, CuH. fFaterhouse in Proceed. Zool. Soc, Dec. 1841, 



p. 109. 



Laevis nigra, elytris hemisphsericis caudatis, antennis pedibusque nitid^ ferru- 



gineis (Tab. XLI. fig. 11.). 

 Length 10 lines, breadth 7j- 



Smooth, black : clypeus emarginate, the sides with a few deep punctures : thorax shining, 

 much broader at the base, which is bisinuated, than before ; anterior margin deeply 

 semicircular, the angles acute, trigonate, sides convex, a little sinuated behind, and 

 forming produced subovate lobes, with a strong transverse groove : elytra orbicular, 

 convex, deadish-black, and under a lens may be traced 6 scratched longitudinal lines, 

 with various smaller branches between them, the edges crumpled ; very much sloped 

 off behind and narrowed at the apex, which forms a subtrigonate tail, a little rugose : 

 pectoral lobe broad, rounded and rugose-striate, as well as the sides of the thorax and 

 the basal abdominal segments : antennae short and ferruginous : legs long, bright fer- 

 ruginous ; anterior tibiae with an external spine, and serrated outside, the others with 

 the external surface scabrose. 



This noble species, which I have dedicated to Captain Fitzroy, who coin- 



VOL. XIX, 3 p 



