Dragon fixes from Sierra Leone. 219 



Interpolated cells at anal angle of t. and external angle in 

 anal loop; A2 moderately angulated. 1-5 rows between A3 

 and edge in hind vving, conspicuously arranged in transverse 

 rows. Membranule moderate. Pterostigma small. 



Ct/anothetnis siutpsoii, sp. n. 



Collected for the Imperial Bureau: 1 c? , Sierra Leone, 

 Yana, 1. iv. 1912; 1 c?, S- -L-, Mongheri, 15. ix. 1912 

 {Dr. J. J. Simpson). Collection ot' Brit. Museum: 1 (^ , 

 1 ?, Southern Nigeria, Oihun Bridge, Oshogbo, i.-iii. lOlo 

 {Dr. II. Strachan). 



(^ (adult, Yana), — Labium black, at antero-lateral angle 

 of lateral lobe a brownish spot. Labrum, face, autl frons 

 anteriorly brownish black. Frons above brilliant sky-blue. 

 Vertex at base and anteriorly black, sky-blue above. Occi- 

 pital triangle light blue, narrowly lined with whitish. Pro- 

 thorax black, upraised posterior lobe liglit blue. Thoracic 

 dorsum brilliant sky-blue from iu\rrow black line on median 

 suture to slightly more than halfway to humeral suture, 

 including antealar sinus; otherwit^e blackish. Sides very 

 dark reddish brown ; ventral surface blackish brown, very 

 slightly bluish ])ruinose. Legs brownish black. Abdominal 

 segments 1-2 black, 3-7 dull bluish (sky-blue in living in- 

 sect ?), b-10 black. Ventral surface black, moderately whitish 

 pruinose. Appendages small ; superiors distant at base, con- 

 vergent, ending rather abruptly in an acute point; in side- 

 view obliquely cut at end, no distinct inferior angle, about 12 

 small irregular denticles ; inferior appendage broad, more 

 than three-fourths the length of superiors. Genitalia of 

 second segment : anterior lamina depressed, broadly elliptical, 

 ciliate. Hamule small, depressed posteriorly ; external 

 branch triangular, acute, directed laterally ; internal branch 

 a small tine hook, strongly curved laterally. Lobe long and 

 narrow, strongly depressed posteriorly, slightly higher than 

 hamule (the entire structure of the type found in Crocothtniis 

 and Rhodotheniis). 



Wings hyaline, very narrowly and diffusely lined with 

 greyish at tips. Deep blackish brown basal spots: in front 

 wing in sc. and cu. not fully to Anq. 1 and Cuq. ; in hind 

 wing to Anq. 3 in sc. (also in proximal half of length in c), 

 a little into ht. and t., and obliquely cut to halfway between 

 apex of membranule and anal angle ; nuirgins of spot a little 

 lighter. Membranule black. Pterostigma dull ochreous. 

 Anq. g|^. Abd. 29, hw. 39, pt. 3. 



(J (subjuv., Mongheri). — Like first (type) specimen; but 



