NOTES ON THE WINGS OF COLEOPTERA. 83 



thoroughly mature, so that they can only be taken off as a single 

 plate. This is the case with two of the specimens examined (of 

 the red-legged form from the New Forest). In the other ex- 

 ample (var. concinnus, from Beattock),the elytra readily separated 

 at the suture. 



6. P. (Steropus) cethiops, Panz. — Flightless. I have examined 

 only one specimen, a female (taken by Brewer in Wales in 1867). 

 The vestigial wings are rather long and narrow, fully 2 mm. 

 long, and about f mm. wide at the base. The elytra are not 

 soldered, and the metanotum is considerably longer than in 

 P. madidus. 



7. P. {Platysma) oblong opunctatus, F. — Fully winged, 7| mm. 

 by 2| mm. wide; elytra about 7 mm. long. Six specimens 

 examined from New Forest, Forest of Dean, and Bradfield, 

 Berks. There is no noticeable distinction in their wings. 



8. P. (Platysma) orinomus, Steph. (?vitreus, Dej.). — Fully 

 winged. Wings, 9-10 mm. long by 4 mm. wide ; elytra, 7i mm. 

 long. Three specimens examined, all from Northern Scotland. 

 I am not aware that our species has ever been satisfactorily 

 proved to be the same as the Arctic P. vitreus, Dej. 



9. P. cristatus, Duf. — Flightless. Vestigial wings only 1 mm. 

 long ; elytra, 9£ mm. I have only examined one specimen (a 

 female) of this rare species. 



10. P. (Lyperus) aterrimus, Payk. — Fully winged. Wings, 

 12£ mm. long by 4.^ mm. wide; elytra, 8 mm. long. This 

 appears to be the most amply winged of all our species, but I 

 have examined only one example (a male), taken, I believe, at 

 Whittlesea by Wollaston, upwards of sixty years ago. 



11. P. (Omaseus) niger, Schall. — Fully winged. Wings, 

 13^ mm. by 5 mm. ; elytra, 12^ mm. long. These measurements 

 are those of a large female from Brockenhurst. The species 

 varies a good deal in size. I have examined six other examples 

 from Braemar, &c, and the wings apparently do not vary more 

 than the elytra. In the New Forest this species is frequently 

 unable to fly, although so amply winged, in consequence of a 

 sticky exudation rendering it difficult to unfold the wings. 



12. P. (Omaseus) vulgaris, L. — Flightless. The vestigial 

 wings take the form of long narrow slips, 4 or 4^ mm. by 1 mm. 

 wide ; elytra, 11 mm. long. I have examined three specimens, 

 two from Brockenhurst, one from Nethy Bridge. The vestigial 

 wings are considerably larger in the southern examples. Schaum 

 says (Ins. Deutschlands, i. 456) that pennatus, Dej., is a fully 

 winged form of this species, and this opinion is repeated by 

 others, but I have not met with any statement of the evidence 

 on which it is based. 



13. P. (Omaseus) anthracinus, 111. — Flightless. The vestigial 



