SCOTT— COLEOPTERA, LAMELLICORNIA AND ADEPHAGA 251 



impunctate, with a few minute hairs on the ventral segments, the terminal segment 

 bearing short minute hairs and 4 longer ones standing in a curved transverse line. 



This species belongs to the group of very small light-coloured Tachys having only 

 1 stria on each elytron. I have compared it with several specimens of the S. African 

 species of this group : it is somewhat of the form of T. humeralis P^r. and T. dehilis Per. , 

 i.e. somewhat broadly oval as compared with other narrower and more elongate species. 

 But T. seychellarum is smaller, and is characterised by having its thorax much narrower 

 at the base than the elytra, whereas in T. humilis and T. dehilis it is not much narrower. 



Loc. Seychelles. Mahe : Cascade Estate, between about 800 and 1500 ft., 1909 ; 

 1 specimen. 



Anilltjs, Jacquelin-Duval. 



Anillus Jacquelin-Duval, Ann. Soc. ent. France, 1851, Bulletin, pp. Ixxii and Ixxiii ; 

 Ann. Soc. ent. France, ser. 2, x. 1852, p. 220; the figures are given in vol. ix. (1851) of 

 the Annales, pl. 13, figs. 25 — 31. 



A single specimen of a very minute, completely blind, and wingless Carabid was found 

 in F^licit^ Island. Unfortunately it got badly damaged, so that it is impossible to deter- 

 mine the species. I have mounted the specimen in balsam, and an examination of it thus 

 mounted, even in its fragmentary condition, has left very little doubt that it is a species 

 of Anillus. 



It agrees with the original description and figures (referred to above) of the 

 genus Anillus in the following characters : — in general form ; in the complete absence of 

 eyes and wings ; in the moniliform character of the antennae ; in the possession of a small 

 median tooth by the mentum ; in the form of the maxillary and labial palpi, in each of 

 which the penultimate joint is large and swollen while the terminal joint is fine and 

 subulate, and in the case of the maxillary palpi short and very minute ; in the shape of 

 the prothorax ; and in the form of the elytra, which are elongate and subparallel, com- 

 pletely covering the abdomen (and, as far as can be seen, soldered along the suture and 

 not separately rounded at the apex). It must be mentioned, however, that : — (i) I have 

 been unable to examine the structure of tibiiB and tarsi, owing to the loss of these organs ; 

 (ii) the nature of the balsam-mount has not allowed of the form of the mandibles being 

 closely examined ; (iii) the labrum appears to have its front margin only very shallowly 

 emarginate (in this respect seeming to be nearer to the closely-allied genus lUaphanus), 

 whereas the species of Anillus {A. ccecus) on which the genus was founded is figured by 

 Jacquelin-Duval {I.e.) as having the front margin of the labrum more deeply emarginate. 

 But despite the defects in my comparison, and the difference in form of the labrum, the 

 balance of evidence is strongly in favour of referring the specimen to Anillus, and I have 

 little hesitation in doing so. 



At first I thought that this specimen was a Scotodipnus : but it cannot belong to that 

 genus, as the elytra completely cover the abdomen, whereas in Scotodipnus they leave the 

 extremity of the abdomen uncovered, and Schaum (Naturg. Ins. Deutschlands, i. 18G0, 

 p. 667) gives this as one of the piincipal characters on which he separated Scotodipnus 

 from Anillus. 



