On a new Species of Chalinolobus. 289 



Notiolesthus morosus, Mots. 1873, is evidently N^ct. rotundi- 

 coUiSjWqsIw. 1842; and morosus will have to stand, on account 

 of the earlier rotundicolUs. 



14. Niiptis and Augolesthus are at present unknown to me. 



Above I have proposed the generic name Taraxides for 

 Nyct. sinuatnSj &c. This genus, with Dei'iles and A menopJi is , 

 is remarkable for the deeply excavated mososternum, the sides 

 of the excavation being angular in front. 



The three may be distinguished as follows : — 



A. Four posterior tibiae channelled nearly the whole 



length of their outer edge. 



a. Antennae with the joints slightly serrate from the 



fifth j oiut Deriles. 



b. Antennae with the joints broader and strongly 



serrate from the fourth joint Amenopkis. 



B. Four posterior tibise cylindrical, not channelled . . Ihraxides, n. g. 



From a note just received from Prof. Westwood respecting 

 some species of Nyctobates described by him, it is clear that 

 N. hypocrita^ moerejis, and punctafus must be placed with 

 Taraxides, and N. lugens, Mots., will sink as a synonym of 

 moerenSjMf. N, transversalis, Westw., will belong to Deriles. 

 N. brevicormSj W., remains unknown tome : it " has the hind 

 tibia3 cylindrical, ejicept at one third of distal end, which has 

 a slight impression gradually widening to the tip ; raesosternum 

 with the hind half convex, but with a groove on each side ; 

 metastenium with a central impression, scarcely distinct in 

 front, but deeper in its hind part." It is evidently a Setenis. 



XXVII. — Descrijytion of a new Species of Chalinolobus from 

 Australia. By G. E. Dobson, M.A., M.B., F.L.S., &c. 



Chalinolobus signifer, sp. n. 



Ears and nostrils as in Chalinolobus tubercidatus ; but 

 behind the nostrils on the face, between and slightly in front 

 of the eyes, an erect transverse process (like the transverse 

 nose- leaf in Phyllorhina, but smaller and not concave in 

 front) is placed. This process commences on each side at 

 a short distance from the eye ; and its free upper margin is 

 regularly convex. 



Wings from the base of the toes ; tail wholly contained 

 within the interfemoral membrane ; postcalcancal lobe Avell 



