1895. PROCEEDINGS OF THE NATIONAL MUSEUM. 141 



postcostal cross vein as tlie latter is long, and ending- near the middle 

 of the cross vein one cell after the vein which terminates the quadri- 

 lateral and the space under it.' Sixteen i^ostcubitals on the front 

 wings, thirteen on the hind wings. Superior sector of the triangle 

 ending on the posterior margin at about the sixth cell after tlie 

 quadrilateral. 



2Ieasurcments. — Total length, 47 niuj. Abdomen, 41. Front win'>- 

 26. Hind wing, 25. Superior appendages, 0.0. Pterostigma, 1. 



Locality. — Two males in the National Museum collection, from Kili- 

 manjaro; the last seven abdominal segments of one of them are want- 

 ing. The female is unknown to me. 



In his "Kevisiou du Synopsis des Agrionines,'"- Baron de Selys 

 arranges the species of Disparoneura in two divisions, of which the 

 first is characterized by the "median sector arising from the rein 

 of the nodus, the subnodal a little after. The rudiment of the lower 

 sector of the triangle parting from the posterior border a little more 

 remote than the hasal postcostal nervule and ending at the middle of the 

 vein which terminates tlie space under the quadrilateral." The second 

 division has the "subnodal sector arising from the vein of the nodus, 

 the median 3 a little in front of this vein." The first division embraces 

 but one species, Z>. subnodalis, Selys; the second, twenty two (includ- 

 ing D. delia, Karsch, 1891). 



J>. ahhotti belongs to the first division, whose characters must be 

 modified as'follows: 



Median sector arising from the vein of the nodus, the subnodal a 

 little after. Lower sector of the triangle arising from the hind margin 

 of the wing farther from the base than the basal postcostal cross 

 vein. 



a. Lower sector of the triangle eudiug at the middle of the veiu which terminates 



the space under the quadrilateral D. suhnodalis, Selys. 



b. Lower sector of the triangle eudiug near the middle of the veiu one cell after that 



wliich terminates the space under the quadrilateral.. .1). ahhotti, new species. 



D.suhnodalis is also described as having a blue band on each side of 

 the head between the epistoma and the eye (apparently not uninter- 

 rupted from eye to eye as in ahhotti), and on each side of the thorax 

 two small pale juxtahumeral spots placed one above the other (wanting 

 in D. ahhotti). 



DISPARONEURA MUTATA. Selys (.?). 



Disparoneura mutata, Selys, Eev. Syn. Agr., ]). 1(U, 18S6. — Kikhv, Cat. Odou., 

 p. 133, 1890. 



Locality. — One male in the National Museum collection, "Taviire, 

 Zanzibar, "January, 1889." 



'In the left front wiug of one male, the lower sector of the triangle ends at the 

 vein which termiuates the space under the quadrilateral. 

 -Mem. Cour. Acad. R. lielg., XXXYIII, 4, 1886, p. 162. 

 ^The original has "sous-nodal'' instead of "median'' — an evident misprint. 



