224 MR. WESTWOOD ON THE TENEBRIONIDiE 



cabinet to which the name of Tenebrio lavigatus is attached ; but it is very question- 

 able whether that insect was the one observed by Fabricius, as he expressly says that 

 it is smaller than Tenebrio molitor, whereas the Banksian insect greatly exceeds that 

 species in size. I therefore do not hesitate to consider it as not identical with the spe- 

 cimen so concisely described by Fabricius, and therefore now describe and figure it 

 under the name of 



Nyctobates confusus. 



Tab. XV. Figs. 6 and 7. 



Nyct. niger Imvis subnitidus ; elytris latioribus, pronoti lateribus in medio sinuatis et san- 

 guineo-margina tis . 

 Long. Corp. unc. 1 ; lat. elytr. pone med. lin. 5. 

 Hab. in Africa sequinoctiaH. In mus. Soc. Linn. Lond. olim D. Banks. 



Caput nigrum, sub lente tenuissime punctatum, carina longitudinali utrinque versus 

 marginem internum oculorum. Antennae articulis apicalibus latioribus. Pronotum 

 transverse quadratum, anguUs anticis oblique truncatis et parum rotundatis, lateri- 

 bus in medio sinuatis, tenuissime marginatis, angulis posticis acutis fere rectangu- 

 lis ; sub lente tenuissime punctatum ; lateribus late et obscure sanguineis, colore 

 sanguineo ante medium, intus acute producto, dorso nigro : margine postico in 

 medio versus scutellum producto. Elytra nigra nitida Irevia, latiora quam in 

 congenericis, pi-sesertim pone medium, apicem versus attenuata ; sub lente seriebus 

 8 longitudinahbus punctorum minutorum. Pedes longitudine mediocres, graciles, 

 tibiis simplicibus fere rectis. 



Individuum in mus. D. Hope vidi lineas 9^ tantum habens staturaque parum minus 

 robusta, vix tamen species distincta. Tab. XV. Fig. 7. 



Nyctobates punctatus. 

 Tab. XV. Fig. 10. 

 Nyct. niger obscurus ; prothoracis angulis anticis rotundatis, lateribus in medio incisis 

 angulisque posticis acutis; elytris punctato-striatis ; antennis sensim dilatatis. 

 Long. corp. lin. 9f ; lat. elytr. pone med. fere lin. 4. 

 Hab. in Guinea. In mus. Dom. Hope. Coram. D. Westermann. 

 Sj-n. Helops punctatus, Fabr. Syst. Eleuth. i. IGl. 



I give the insect here described as the true H. punctatus, Fab., on the authority of a 

 specimen received by the Rev. F. W. Hope from Copenhagen, from M. Westermann (who 

 has such excellent opportunities of determining those Fabrician species which were 

 described from the cabinets of Lund and Sehestedt, as was the case with the present 

 species). This is the more important, as the Fabrician description is so slight as to be 

 applicable to scores of species of Heteromerous insects. The following is a more de- 

 tailed description : — 



