44 Mr. G. R. Waterhouse : Contributions to the Entomology 



'Mag. Zool.^ Psectrascelis pilipeSj Solier, /. c. I am not aware 

 that M. Dupont has characterized this species. 



19. Nyct. Klugii, Buquet, is Psectrascelis glahratus of Solier 

 (/. c). The latter name must of course stand, unless M. Buquet 

 should have previously described this species with the name at- 

 tributed to him by Dejean. I have been unable to find that he 

 has. 



20. Nyct. vestita, Lacord. Cerostena vestita, Solier, /. c. 



21. Nyct. deplanatay Lacord. Cei'ostena deplanata, Solier, /. c. 



22. Nyct. plicatipennis, Lacord., is the Nyctelia transverso-suU 

 cata of my paper in the ' Proceedings of the Zool. Soc.^ for Dec. 

 1841, p. 106. 



23. Nyct. nehulosa, Buquet. N. picta, Klug. This species is 

 in several of our cabinets, but I am not aware whether it is de- 

 scribed under either of the above names. The characters are as 

 follows : — 



Atra, tomentosa : thorace brevi, lateribus rotundatis, supra convexo, 

 postice macula fuscescenti-alba : elytris ovatis postice acuminatis, 

 quoad latitudinem thorace fere coaequalibus, supra convexis, nigro 

 alboque variegatis, atque costis duabus elevatis. — Long. corp. 7^ 

 lin. ; lat. 3| lin. 



Var. JD. elytris fuscis, marginibus albis vel fuscescenti-albis, dorso 

 albo-variegato. 



Nyctelia nehulosa appears to me to be allied to Cerostena, but 

 it does not associate perfectly with any of M. Solier^s subdivisions. 

 From Cerostena, which is on the whole the nearest, it differs in 

 not having the posterior tibiae dilated at the extremity, a character 

 which appertains likewise to Psectrascelis ; but in this latter genus 

 there is considerable difference, both in the sexes and in the spe- 

 cies, as to the degree of dilatation of the tibise : of Cerostena I have 

 but one specimen, but probably the sexes vary in the same way. 

 The antennae in the insect under consideration if extended back 

 would reach rather beyond the base of the thorax, and they are 

 moderate as to thickness ; the joints are moniliform and not elon- 

 gated, nor so slender as in Cerostena. The labrum is transverse 

 and emarginated in front, but less deeply than in the genus last 

 mentioned ; the mentum is transverse, contracted behind and 

 truncated in front ; the labium is very narrow in the antero-pos- 

 terior direction, and emarginated in front ; the palpi are short, and 

 the terminal joint of each palpus is swollen at the extremity. The 

 legs are moderate, covered with pubescence ; the posterior tibise 

 are slightly cm-ved. 



This species is described and figured by Erichson under the 

 name Nijctelia decorata (see ' Act. Acad. Cses. Leop.* vol. xvii. 



