556 



MR. H. RIDLEY ON THE 



pale grey, some parts being a trifle paler tban others ; and ttiere 

 is a slight mixture of pale yellowish-brown pubescence, especially 

 on the elytra. On the underside the pubescence is more sandy 

 yellow, leaving the middle of the sterna and abdomen dark. The 

 thorax. has the usual line of large punctures at the base; a very 

 slight raised line behind the middle of the disk ; the lateral tooth 

 small and acute. The elytra have the very slight costa near the 

 suture a little less raised at the base than in T. dimidiatus, and 

 the apical truncature of each elytron is not straight but has the 

 angles rounded. The black punctures are arranged as in T. di- 

 midiatus, but extend to the apex. There is a small pale spot at 

 the base close to the scutellum, and a scarcely noticeable brown 

 spot near the suture a little way from the base. One example 

 has a slight whitish mark on the suture just before the middle, 

 and a moderately broad whitish band near the apex, somewhat 

 similar to the band in T. dimidiatus, but broader nearer the apex 

 and less angular near the suture, where it is only carried up to a 

 level with its origin on the margin. 



This species is, in many respects, intermediate between T. di- 

 midiatus and T. melancliolicus. 



[These also came to light with the preceding, but were rarer, 

 only two being taken. — H. N. RJ] 



PSEFDOTRIMEEA. 



SCYMNUS, sp. 



Two examples of a species resembling the Indian S. xeranipe- 

 linus, Muls., but a trifle smaller (1^ millim.) ; uniform brownish 

 yellow, with golden pubescence ; punctuation of the elytra close, 

 fine but distinct ; metasternum very strongly punctured. 



THYSANURA and COLLEMBOLA. 



By H. K EiDLEY, M.A., F.L.S. 



Iapyx SArssuRii, Humbert, Bev. et Mag. Zool. Sept. 1868, 

 p. 351, pi. ii. figs. 1-5. 



A single specimen of what I believe to be a young example of 

 this little animal was obtained under a stone in the Sapate woods. 



