122 EAST AFBICAN OBONATA— CALVERT. vol.xviii. 



from Rauibur's description only in having the posterior angle of the 

 lateral lobes of the labium liiteous, not black, and the articulations of 

 the abdomen are blackish, especially at the sides. 



Additional details: Appendages longer than the last two, but not as 



long as the last three, abdominal segments. 

 Basal spot of hind wings deeply cleft ex- 

 teriorly at the basilar space, reaching out- 

 ward in the subcostal space to the first 

 antecubital; in the median space not as far 

 as the triangle except by a slender limb 

 along the postcostal vein to the posterior 

 y ^ angle; no clear space within the spot along 

 -Fi^A^ Fi<^.2. ^^*3 ^^1^1 margin, but just beyond the apex 



TRAMEA LiMBATA, Female. of the membranule is a paler area, where 



(DBas-ofr.ghth.ndwmg; (2) Ventral sur fhC CCllS, liliC tllOSC bclOW tllC pOStCOStal 



face of Inst two abilominal segments. . - • ii -r-i 



vein, are clearer in the center. Front wmgs 

 with 11-12 antecubitals, 9-10 xDostcubitals, triangle with one cross 

 vein. Hind wings with 7 antecubitals, 11-12 postcubitals. Pterostigina 

 luteons, longer on front than on hind wings. 



Measurements. — Length, 40 mm. Abdomen (including appendages), 

 31. Front wing, -i;). Hind wing, 41. Pterostigma, 3 (front), 2 (hind). 

 Appendages, 3.G. 



SCHIZONYX LUCTIFERA, Selys. 



Zygomix f lucUfera, Selys, Ann. Soc. Ent. Belg., XII, p. 96, 1869 ; Ann. Mag. Xat. 



Hist. (4), III, p. 273, 1869.. 

 Schizomjx lucUfera, Kar.sch, Berl. Ent. Zeit., XXXIII, p. 281, 1890.— Selys, Ann. 



Soc. Ent. Px'lg., XXXV, p. ccxxvi, 1891. 

 ScMzopygu hicti/era, Kirby, Cat. Otlon., p. 184, 1890. 



^[ale. — Vertex truncate, dark metallic blue. Frons with a median 

 groove superiorly, dark metallic blue, a yellow spot on each side infe- 

 rioiiy. Nasus black in the middle, yellow on each side. Rhinarium and 

 lips black; occiput brown. 



Protliorax blackish; posterior lobe very small; its hind margin 

 entire, rounded. 



Thorax dark metallic blue; a humeral stripe and five or six spots on 

 the sides, yellow. 



Feet blackish; femora somewhat reddish, llairc of the feet short, 

 14-15 pairs on liiud tibne. 



Abdomen black, rather slender, very little swollen at the base, taper- 

 ing gradually to apex; 2 and 3 each with a supplementary carina, that 

 of 3 forming an obtuse angle, directed forward, on the <lorsum of the 

 segment; 4 with a slight indication of a supplementary carina. 



Superior appendages not as long as the last two segments, black; 

 viewed from above, straight, slightly thickened on the inner side before 

 the apex, which is moderately acute; viewed from the side, -each is 

 directed downward, thickened inferiorly in the apical half with 3-4 



