June, '08] 



ENTOMOLOGICAL NEWS. 



265 



sixth to one-seventh the length of the appendage; and the nar- 

 rower appendage and higher keel of multicolor as compared 

 with jalapensis and mutata, as seen in profile; females, each 

 abdominal appendage of multicolor is nearly symmetrical, the 

 outer and inner edges with about the same curvature; the 

 length 5 mm.; in jalapensis and mutata the outer edge of each 

 appendage is nearly straight, the inner edge broadly curved; 

 the length 6 mm. in jalapensis and 7 mm. in mutata. By ap- 

 pendages of males jalapensis and mutata are separated by the 



MULTICOLOR 



JALAPENSIS 



MUTATA 



longer dorsal carina and apical fork of the superiors, and the 

 shorter (one-half the length of the superiors) inferior in jalap- 

 cnsis; in mutata the apical fork is reduced' in size and the in- 

 ferior appendage is two-thirds the length of the superiors. 



The ventral spinulose tubercle on abdominal segment i i^ 

 most pronounced in jalapensis and multicolor, the spinulose 

 area in mutata being raised into only a very low tubercle. On 

 segment 2 on margins about the accessory genitalia miilala i> 

 more spinulose than the other two. 



