PLATE CCCXLVI. 5$ 



Musca Vibrans : alis hyalinis apice nigris capite rubro. 

 Linn, a GmeL T. I. p. 5. p. 2855. fp. 112. 

 Fab. Sp. Inf. 2. p. 450. ». 81. 

 Degeer. Inf. 6. p. 32. n. II. /. 1./^. 19. 

 G*^. /»/". ^. 2. /». 494. n. 4, 



Remarkable for the continual vibratory motion of its wings. 



FIG. IV. 

 MUSCA NOCTILUCA. 



SPECIFIC CHARACTER 



AND 



ST NO NT MS. 



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 GmeL 

 T. i.p.$.p. 287 4. fp. 48. 



Faun. Suec. 1 8 14. 



Fab. Sp. Inf. I.p. 431- "• 54* 



F I G. 



