452 R. OSTEN SACKEN 



owing to the great difference in size and intensity of coloring 

 of the specimens, he may mean this species. 



Nerius mantoides Walk. J. Proc. Lin. Soc. V, 254 ! (Dorei , 



N. Guinea). 



Syn. (?) ZNTerius tibialis Dolescli. 2 Bijdr. 52, Tab. m, f. 4! (Amboiaa). 

 (?) ]Verius tibialis (Dol.) Walker, 1. c V, 166 (Amboina). 



Two specim. ; Mom, N.- Guinea {Beccavi 1875). 



Doleschall's description does not quite agree with my speci- 

 mens ; but three types of his which I saw in Vienna were 

 exactly like them , except that the ends of their tibiae were 

 infuscated. Walker's description of N. tibialis likewise mentions 

 this character. Walker says about mantoides that it can easily 

 be distinguished from tibialis « by its wings » , but he leaves us 

 in the dark about the nature of the difference. Between the 

 two names I prefer the most certain one. 



Nerius inermis Schiner, Novara etc. 248 (Nicobar Islands) ! 



Eight specimens ; Aru Islands , Wokan : Kandari , Celebes 

 {Beccavi). 



I have seen the type , and the description agrees likewise , 

 except the color of the palpi, which are yellow in the speci- 

 mens before me. Nevitis duplicatus Wied. II, 353 (Java), Nerius 

 slviatus Dolesch. (Bijdr. 9, Tab. Ill, f. 3, Java) are closely al- 

 lied, if not the same, species. Schiner 1. c. observes with good 

 reason that Telostijlus binotatus Bigot (Rev. et Mag. de Zool. 

 1859) seems Hkewise to belong in the same group. Tlie spe- 

 cimens are very variable in coloring and for this reason it is 

 hazardous to judge of the identity from mere descriptions. Three 

 specimens from Ilatam , New Guinea , are smaller and darker , 

 and may perhaps belong to a separate species. 



Calolbata,. 



Great difficulties attend the discrimination and identification 

 of the group of exotic Calobatae, characterizod by a black body. 



