28 Mr. II. Scott on Corylophidae /ro/n the 



organs can be seen under the partly opened elytra of the 

 single ? , but actual dissection and search for minute 

 vestigial wings is prevented by the necessity of preserving 

 the specimen intact; the two ^ have ample wings, folded 

 under the elytra ; one of these organs is mounted in balsam, 

 but I liave failed to unfold it completely, so cannot state its 

 proportions to the elytron accurately ; it is, however, con- 

 siderably longer than tlie elytron (see p. 4). Metasternum 

 ^ with a marked median longitudinal impression broadening 

 behind, on the posterior | of its length ; surface of the meta- 

 sternum almost impunctate, with pale short hairs, closer in 

 the impression, very scanty at the sides ; in the ? the meta- 

 sternum is convex and glabrous in the middle. First ahclo- 

 minal segment : (^ , with no impression, but with a median 

 group of a few short hairs, on either side of whicii it is bare, 

 but has a few other hairs near the lateral margins ; ? , no 

 median group of hairs. I'he other segments bear scanty pale 

 pubescence. 



This species is quite distinct from any I have seen. The 

 form most closely resembling it superficially is B..brevico7'nis, 

 Matth. (West Indies). A (J of this, now before me, is the 

 same size, but more attenuated behind ; the reticulation of its 

 thorax is slightly less marked, while its elytial punctures are 

 a little stronger ; and it differs decidedly in the nature of its 

 (^ ventral impressions {vide supra, p. 26). 



Loc. Amirantes Islands. 'i'hiee specimens from Eagle 

 Island, 1905 (H.M.S. ' Sealark' Expedition). 



Named ^' aquilinus" in allusion to the ishmd of its 

 discovery. 



OllTHOPEKUS, Stephens. 

 (PI. IV. tigs. 40, 41 ; PI. V. figs. 42-44.) 



The material includes at least two, possibly three, species 

 of this genus : a new and very distinct form from Rangoon ; 

 a single ,^ from the Seychelles, referred to a species known 

 from S. America and W.Indies ; and a single indeterminable 

 specimen from Rangoon, possibly the ? of the preceding, 

 possibly distinct. 



Diverging Strice on Metasternum. — I have found in the 

 literatuie no mention of diverging strise or lines on the meta- 

 sternum, curving round behind the middle coxaa (tig. 41, I.) ; 

 yet they are present in a number of species. They recall 

 the diverging stiiai found in a similar position in Acritus 

 and other Histeridse, but in these there is a second pair of 

 diverging striae behind the hind coxae on the first abdominal 



