PLATE CCCXLVI. 55 



MusCA ViBRANS: alis hyalinis apice nigris capite rubro. 

 Linn, a Ginel. T. 1. p. 5. p. 2855. fp. 112,. 

 Fab. Sp. Inf. 2. p. 450. w. 81. 

 Degeer. Inf. 6. p. 32. n. ll. t. I- fig. 19. 

 Geoffr. Inf. p. 2. p. 494. n. 4. 



Remarkable for the continual vibratory motion of its wings. 



FIG. IV. 



MUSCA NOCTILUCA. 



SPECIFIC CHARACTER 



i 



AND 



STNONTMS. 



Somewhat hairy, black ; two pellucid fpots on the firft fegment of 

 the abdomen. 



MusCA Noctiluca: fubtomentofa atra, abdominis fegmento 

 primo maculis duabus pellucidis. Linn, a Gmth 

 r.i.p.s.p. 2874. y/*. 48. 

 Faun. Suec. 18 14. 

 Fah. Sp. Inf. 2. />. 431- w- 54* 



F I G. 



