44 ]Mr. G. R. Waterhouse : Contributmis to the Entomology 



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

 that M, Dupont has characterized this species. 



19. Nyd. Klugii, Buquct, is Psectrascelis glahratus of Solier 

 (/. c). The latter name must of com'se stand, unless M. Buquet 

 should have previously described this species with the name at- 

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

 has. 



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



21. Nyct. deplanata, Lacord. Cerostena deplanata, Solier, /. c. 



22. Nyct. jilicatipennis, Lacord., is the Nyctelia transverso-sul- 

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

 1841, p. 106. 



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

 in several of our cabinets, but I am not aware Avh ether 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 thoi'ace fere coaiqualibus, supra convexis, nigro 

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

 lin. ; lat. 3| lin. 



Var. /3. elytris fuscis, marginibus albis vel fuscescenti-albis, dorso 

 albo-variegato. 



Nyctelia nebulosa 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 diJffers in 

 not having the posterior tibia; 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 tibiae : of Cerostena I have 

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

 The antemipe in the insect under consideration if extended back 

 w^ould 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 tibiae 

 are slightly curved. 



This s]iecies is described and figured by Erichson under the 

 name Nyctelia decorata (see ' Act. Acad. Cpcs. Leop.' vol. xvii. 



