NOVITATES ZOOLOGICAB XXII. 1915. . 1()3 



These figures show well the short, wide, urceolate aedeagus and the 

 variabilit}' of the harpes. 



Figs. 45 and 46. acuta var. dentata. 

 Fig. 47. acuta var. paracuta (Formosa). 



„ 48. ,, ,, ,, ab. hrunnea (coll. Bethnue-Baker). 



In the last preparation, the aedeagus has unfortunately been crushed (in pre- 

 paring, probably). 



All these are within the limits of variation shown in a number of preparations 

 of acuta, of which figs. 41-44 are a sample ; in fig. 48 the dorsal hooks are longer 

 and more slender than usual, and 47 and 48 are altogether larger, especially in 

 the tegumen. 



Fig. 49. spertkis sent me as santana. 

 „ 50. „ „ „ javana. 



,, .51. „ „ „ santana (Sandakan, Borneo). 



„ 52. „ var. mimnia. 

 The aedeagus is shorter than in acuta, narrower, and has a characteristic pointed 

 extremity. 



Fig. 53. thetis India. 

 „ 54. „ Ceram (sent me as phaedrus). 

 „ 55. „ British New CTuinea. 

 „ 56. „ var. barsine (coll. Bethune-Baker). 

 All these show the " shuttle " piece fairly well, 53 and 55 especially show the 

 position of the serrations it carries. 



Fiff. 57. tkctis var. menestratusYvnh&i. 



„ 58. ,, „ fe.i-giissoni. 

 Both these show the tendency to fusion of the two lobes of the harpe, giving 

 some resemblance to the peculiar caplike end in celebensis. 

 Fig. 59. thetis var. bougainvillei. 



„ 6U. „ „ egena. 

 These two are more like typical thetis ; in one harpe of 59, and both of 60, the 

 lateral lobe is folded over so as to be not so easily seen. 

 Fig. 61. thetis var. ribbei. 



The aedeagus is typical of thetis, the harpes are rather lengthened for thetis, but 

 the differences can hardly be said to be beyond those of geographical races. 

 Fig. 62. phaedrus. 

 „ 63. ,, (Balai, India). 

 „ 64. „ 

 These show (as compared with thetis) the much broader valve, the shorter 

 simple harpe and the heavy extremity of the aedeagus. 

 Fig. 65. saroids, type form from Andamans. 

 „ 66. ,, var. nicobarica from Nicobars. 

 „ 67. „ ,, gloriosa (Rangoon). 

 These have a very broad valve, a short harpe, and a rather long shuttle. 

 Fig. 68. celebensis. 



Differs from thetis in the caplike end of the harpe, and the serrations being 

 at the end of the shuttle, and in minor points, such as the hooked extremity of the 

 dorsal hooks, which are less suddenly curved at the end in thetis. 

 Fig. 69. insularis. N.E. Sumatra. 



