REPORT OF THE STATE ENTOMOLOGIST 1904 



459 



very highly devel- 

 oped 'fine hairs 

 clothing the female 

 antennae. The 



13th and 14th seg- 

 ments in the male 

 are much pro- 

 duced, each with 

 a basal whorl of 

 stout setae, and in 

 the case of the 

 13th with a thick 

 group of plumed 

 hairs. The greater 

 part of this seg- 

 ment is compara- 

 tively naked, being 

 clothed only with 

 rather short, sparse 

 hairs. The 14th 

 is sparsely clothed 

 with short hairs. 

 The antennae of 

 Deinocerites are 

 remarkable be- 

 cause of the greatly 

 prolonged second 

 segment in both 

 sexes, it being three 

 times the length of 

 the following seg- 

 ments in the fe- 

 male and on ac- 

 count of all the 

 segments being similarly clothed in both sexes. The male is at 

 once recognized by its having the third to seventh segments also 

 much produced though each shorter than the preceding one. The 

 antennae of Corethrella are peculiar in that the female possesses on 

 segments 2 to 14, a scattering secondary whorl about the middle of 

 each, while in the male there is a distinct basal whorl with a thick 

 vestiture of slightly shorter, finer hairs extending to the apical 

 fourth of each segment. Sayomyia presents a more generalized 



Fig. 



Deinocerites cancer, antennae of male and 

 female, showing all but the basal segment and illustrat- 

 ing the peculiar elongation, of segments two to seven 

 in the male and the enormous extension of the second 

 segment in the female, greatly enlarged (Original) 



