134 EAST AFBICAN OBONATA— CALVERT. vol. xvm. 



from side to side. Hainule with its apex bifid; internal branch, rather 

 slender, apex blunt, external branch shorter, twice as broad, apex trun- 

 cated. Genital lobe not as prominent as the internal hamular branch. 

 Feet black, femora yellow superiorly. 



Female. — Face and lips luteous, a black line 

 in front of the eyes. Vertex and occiput dark 

 brown. Rear of the head luteous. 



Thorax luteous ; summit of the median dorsal 

 carina, a short line at the summit of the first 

 Fig. 11. and second hiteral sutures, rim of the spiracle 



oRTHETRUMABBOTTii.Maie. aud margius of autcalar siuus, black. 



s.deviewo een.ta.a. Abdomcu of alffiost CQual wldtli throughout, 



luteous, carinse and anterior sutures black; a lateral marginal black 

 stripe on 4-7 ; dorsum of 8 black with a luteous stripe each side, except 

 at apex; dorsum of 9 black; dorsum of 10 black with two small apical 

 luteous spots. Lateral margins of 8 somewhat dilated (about as much 

 as in 0. hrunnea). 



Appendages straight, simple, black, a little longer than 10; tubercle 

 between them luteous. 



Vulvar lamina simple, margin straight, entire, not projecting farther 

 than the apex of 8. 



Feet: Femora superiorly luteous, inferiorly black ; tibite superiorly 

 bright yellow, inferiorly black ; tarsi black. 



Measurements of Orthetrum abbottii. 



Total length 



Abdomen 



Front wing 



Hind wing 



Sniicrior iijuiendagea. 



A])]ieiidaucs 



Pttrost iiitiia 



Locality. — One male and one female in the National Museum collec- 

 tion, from Kilimanjaro. 



ORTHETRUM WRIGHTII, Selys. 



LiheUiila wrightii, Selys, Ann. Soc. Ent. Belg., XII, p. 96; Ann. Mag. Nat. Hist. 



(4), III, p. 272, 1869. 

 Orthetrum wrightii, Kirby, Cat. Oclon., p. 182, 1890. 

 Lihellula desjardinsii, Selys, in Pollen «&. Van Dam, Faune Madag., Ins., p. 22, 



1869; Kev. Mag. Zool., 1872, p. 182. 



3Iale. — Face i)ale olive or luteous. Frons blue black anteriorly and 

 on the sides, which is continuous, with a black stripe in front of the 

 eyes and vertex, the black thus inclosing a pale olive spot on the upper 

 surface of the frons, and also a small yellow spot on the sides inferiorly; 

 below the horizontal carina luteous. Labrum luteous, free margins 



