492 MISSES K. FOOT AND E. C. STROBELL : 



Photo 43. Intromittent organs from the seven bugs of photo 48, plate 32. Lengths 



of intromittent organs : —1st (upper), 1 1 85 mm. 2nd, 132 mm. 3rd, 140 mm. 



4th, 133 mm. .'5th, 127 mm. 6th, 138 mm. 7th, 141^ mm. 

 Photo 44. Intromittent organs from the two bugs of photo 44, plate 32. Lengths 



of intromittent organs : — 1st (upper), 115 mm. 2nd, 127 mm. 

 Photo 45. Intromittent organs fn.m the three bugs of photo 45, plate 32. 



Lengths of intromittent organs : — 1st (upper), 128 mm. 2nd, 136 mm. 3rd, 



137 mm. 

 Photo 46. Intromittent organs from the six bugs of photo 46, plate 32, Lengths 



of intromittent organs : — 1st (upper), 116^ mm. 2ud, 128 mm. 3rd, 122 mm. 



4th, 120 mm. 5th, 136 mm. 6th, 127 mm. 

 Photo 47. Intromittent organs from the four bugs of photo 47, plate 32. Lengths 



of intromittent organs : — 1st (upper), 1 19i mm. 2nd, 110 mm. 3rd, 142 mm. 



4th, 121 mui. 

 Photo 48. Intromittent organ from the male of photo 48, plate 32, Length of 



intromittent organ, 110 mm. 

 Photos 49 & 50. Intromittent organs from the six F^ males from the sixth pair of Fj 



hybrids. The male parent of these hybrids is shown in photo 13, plate 28, 



and its intromittent organ in photo 13, Plate 41. 

 Photo 49, Intromittent organs from the two bugs of photo 49, plate 32. 



Lengths of intromittent organs: — 1st (upper), 113^ mm. 2nd, 129| mm. 

 Photo 50. Intromittent organs from the four bugs of photo 50, plate 32. 



Lengths of introniiitent organs: — 1st (upper), 128 mm. 2ud, 128 mm. 3rd, 



125 mm. 4th, 134 mm. 



Plate 46. 

 {Cf. Plate 33 of this volume.) 

 Intromittent organs from 32 Fo males from the seventh pair of Fi hybrids. 

 The male parent of these hybrids is shown in photo 13, plate 28, and its intro- 

 mittent organ in photo 13, Plate 41. 



Photo 51, Intromittent organs from the nine bugs of photo 51, plate 33, Lengths of 



intromittent organs: — 1st (upper), 110 mm. 2nd, 120 mm, 3rd, 131 mm. 



4th, 119 mm. 5th, 13Gi mm. 6th, 12U mm. 7th, 138 mm. 8th, 115 mm, 



9th, ] 22 mm. 

 Photo 52. Intromittent organs from the six bugs of photo 52, plate 33. Lengths of 



intromittent organs : — 1st (upper), 127 mm. 2nd, 123^ mm, 3rd, 112 mm. 



4th, 128 mm. 5th, 120 mm. 6th, 136 mm. 

 Photo 53. Intromittent organs from the four bugs of photo 53, plate 33. Lengths of 



intromittent organs: — 1st (upper), 115^ mm. 2nd, 112 mm. 3rd, 115 mm. 



4th, 143A mm. 

 Photo 54. Intromittent organs from the four bugs of photo 54, plate 33. Lengths of 



intromittent organs:— 1st (upper), 130 mm. 2nd, 120 mm. 3rd, 135 mm, 



4th, 112 mm. 

 Photo 55. Intromittent organs from the four bugs of photo 55, plate 33. Lengths of 



intromittent organs; — 1st (upper), 116^ mm, 2nd, 118 mm. 3rd, 118 mm. 



4th, 131 mm. 

 Photo 56. Intromittent organs from the three bugs of photo 56, plate 33. Lengths of 



intromittent org.ins : — 1st (upper), 1121 mm. 2nd; 119 mm. 3rd, 129^ mm. 

 Photo 57. Intromittent organs from the two bugs of photo 57, plate 33, Lengths of 



intr, mittent organs — 1st (upper), 106i mm. 2nd, 120 mm. 



