468 



NEW YORK STATE MUSEUM 



The most striking modification is seen m the abdommal append- 

 ages the clasp, terminal clasp segment and harpes of the right 

 sfde bemg well developed and distmctly male^ The right harpa- 

 go appears to be present, though it has become fused wi h 

 Lother organ, possiblv a rudimentary female lobe. The setaceous 

 anuLuci s , F - ^^^^g^ ^^g^ characteristic of the 



male, are both well developed. 

 Most of the organs on the left 

 side are rudimentary and may be 

 possibly regarded as very much 

 reduced male appendages or 

 probably distorted female lobes. 

 It will be seen by reference 

 to the above that this specimen 

 is largely male on its right half, 

 with a sinister preponderance of 

 female characters. 



Culicada pullatus Coq. The 

 right antenna of this specimen 

 is characteristically male, while 

 the left is plainly female with 

 male tendencies shown in the 

 enormous prolongation of the 

 basal whorls of each segment and 

 the somewhat slightly produced 

 13th and 14th segments. Both 

 palpi are plainly male . The right 

 wing has the sparse scale clothing 

 of the male, with the posterior 

 cross vein remote from the mid 

 cross vein, the absence of oblique 

 fringe scales and a greatly pro- 

 duced anal angle ; the left wing is 

 Fig II Culicada ab ser r a t u s . genitalia narrower than the othcr, With an 

 of an hermaphrodite. cvcn greater distaucc between the 



posterior and mid cross veins and the submarginal cells, with possibly 

 slightly longer petioles than in the other wing. The left wmg pre- 

 sents a marked female characteristic in the presence of oblique fringe 

 scales near the posterior m.argin, and it is possible that these 

 structures were along the greater length of the wmg and have been 

 lost by abrasion. The fore and mid legs of the right side present 

 a striking male modification in the very obvious inequality between 

 the claws, a character present in almost equal degree m the tore 

 leg of the left side and nearly absent in the claw of the right mid 

 leg The wings and legs of the two sides it will be seen, plainly 

 indicate an intermingling of the characters of the two sexes. Ihe 

 posterior abdominal appendages are remarkable m that they are 

 obviouslv female and apparently entirely normal for this species 



It will be seen by reference to the above that there is a partial 

 lateral division and a plain anteroposterior sexual modification m 

 that the head is largely male, while the posterior extremity is 

 apparently entirely female. 



