Zool.— Vol. I.] CALVERT— ODONATA. 401 



(where it is widest) almost to the apex on 3, three-fourths as long as the seg- 

 ment on 4, half as long on 5, 6 with a yellow spot each side occupying the 

 middle two-fourths of the segment, 7 with a small spot near the middle 

 of each side; inferiorly the abdomen is pale yellowish brown. 



Superior appendages as long as 9+10, yellow, brown at base and at tip, 

 curved downwards in the basal half, nearly straight in the apical half, with a 

 well marked, median, inferior tooth, whose basal side bears five to six black 

 denticles, apex gradually tapering, very acute. Inferior appendage two-thirds 

 as long, yellow, brown at the extreme tip, which ends in the usual two up- 

 turned denticles and extends beyond the inferior tooth of the superiors. 



Genitalia of 2 inconspicuous; anterior lamina less prominent than hamule 

 or genital lobe, its margin slightly bilobed; hamule bifid, inner branch shorter, 

 more slender, hook-like, apex acute, outer branch twice longer and twice 

 wider, apex blunt; genital lobe equally prominent with the outer hamular 

 branch, rounded. 



Wings clear, reticulation blackish, pterostigma and the very small mem- 

 branule dark brown, the former surmounting one cell and parts of two others. 

 Neuration as described by Kirby, 1 except that there are eleven postnodals on 

 the hind wings. 



i 8 Tepic, Nov., 1894, Eisen and Vaslit. 



The neuration of A natya is almost identical with that of 

 Micrathyria; in the former the hind wings are widest at 

 the level of the nodus and become so much narrower 

 towards the base that but one row of cells exists between 

 the proximal subbasal sector and the hind margin; in 

 Micrathyria the greatest width of the same wings is near 

 the level of the middle antenodal, whence the narrowing 

 towards the base is so much less that three rows of cells 

 are found between the proximal subbasal sector and the 

 hind margin. 



Although this male is probably not fully colored, the dif- 

 ference in its superior appendages from those of guttata 

 Erichson (which Mr. Kirby appropriately named anomala) 

 justifies the application of a new specific name, normalis, as 

 these appendages are quite of the usual style. 



39. Sympetrum illotum Hagen. 



Mesothemis illota Hagen, Syn. Neur. N. Am., 1861, p. 172. 



Diplax illota Calvert, Proc. Cal. Acad. Sci., 2d Ser., Vol. IV, 1893-94, 



p. 545, PI. XVII, fig. 114-119. 

 Sympetrum illotum Kirby, Cat. Odon. 1890, p. 17. 



1 1. c, 1889, p. 294. 



