Plate VIII. 



Fig. 



41. Upper winged bristle from the re.iiion of Bispira voliitdconiis. xZeissoc.2. 

 Obj. D. ' 



44. Winged bristle from the middle of tiie tuft (tlioracic region). Similarly 



magnified. 



45. Winged bristle from tlie same region in Spiivi^rnpliis Spallatizniii. Similarly 



magnified. 



46. Upper liristle with narrow wings from the posterior region of nixpini voliitii- 



coniis. X As before. 



47. Inferior bristle of the same tuft. Similarly magnified. 



4S. Winged bristle fron the same region in Spiivi^inpiiis SpciHiiii-aiii. x As 

 before. 



40. Hook of Bispira I'oliifnconiis. x Zeiss oc. 2. Obj. D. + 3 in draw-tube, 



50. Lateral view of Bi-ipim "i'ohitiicoiiiis. About natural si/e, 



