366 Mr. Hugh Scott on certain NyderihiidsSy 



convex outer surfaces, inner surfaces somewhat concave, and apices 

 rounded enclosing a median portion (Fig .\\d) only about i as long 

 as the lateral parts ; the latter have a few short bristles on their 

 outer surfaces, longer strong bristles apically ; the median part has 



2 rather long fine bristles on its hind margin. 



Basal deriiite as in the ^ . — [Owing to softness and shrinkage it 

 is impossible to estimate correctly the relative lengths of sternites 2, 



3 and 4.] Sternites 2, 3 soft, short, with long bristles not close on 

 the hind margins, and very short fine bristles on the posterior part 

 of their surfaces. Sternite 4 with long bristles on its hind margin, 

 and a few short ones on its surface. Sternite 5 is a long chitinous 

 plate (Fig. 12(r) appearing as if composed of two segments fused ; at 

 about J the length from its base is a transverse row of long and 

 short bristles (marking the limit of one component sternite), and its 

 hind margin also bears long and short bristles ; rest of its surface 

 bare. Anal segment ventrally appearing rather long and narrow, 

 markedly emarginate in the middle of its hind border, with rounded 

 corners, a median longitudinal impression, and a few bristles distally. 



The curiously fornied ^ anal segment of JV. insolita 

 somewhat resembles that of JV. hladi, Kolenati, and of 

 N. 2^cclicidaria, Latr. { = H. latreillei, Leach), in both of 

 which the segment has produced lateral plates. N. insolita 

 is distinguished by its smaller size, and by the thorax 

 ventrally being longer than broad ; the possession of the 

 long chitinous ventral plate (sternite 5) also is characteristic. 

 The ^ also resembles JSF. hlasii somewhat in having a long 

 anal segment, but differs in the form of the thorax, etc. 



Ni/cteribia (Listropodia) sauteri, sp. nov. 



Pallide fiavescens ; thorace subtus jierparum latiore quam longo ; 

 femoribus tibiisque parum latis. 



$ segmentum anale supra brevissimum, subtus longius, apice 

 lato. 



$ segmentum dorsale 2 curtum, lajve, superficie sine capillis : 

 segmenta ventralia 3 et 4 utrumque laminis duabus perparum 

 elevatis : segmentum anale asque longum ac in basi latum, postice 

 angustatum, subtus utrinque tuberculis duobus obtusis parum 

 elevatis. 



Long, Corp. circa 1*25 mm. 



1 ^ and 1 ^ sent from Tainau, Formosa (H. Sauter) ; 

 found on a single individual of Minio'pterus schreihersii 

 Type $ in the Cambridge Museum. The $ was unfor- 



