512 



WARO nakahara: 



Osmylus? tcsscllatus Krüger, Stett. Ent. Zeit., p. 270 (191 3). 

 Head black, swollen above ; face yellowish with a large furcate 



yellow ; a distinct small yellow spot exists anteriorly in the middle. 



Meso- and metathorax piceous, faintly marked with fuscous. 



Legs pale yellow, with hairs of same color ; hindleg somewhat 

 brownish, especially on femora ; end of tarsi darkish ; coxa I without 

 spur, but with a somewhat dilated portion instead ; claws rather long, 

 with teeth. 



Abdomen fuscous black, darker at base, slightly suffused with 

 yellow on lateral sides ; last two segments variegated with ochraceous 

 yellow, much hairy ; boat-shaped female organ fuscous, yellowish 

 along margin. 



Forewing broad, subacute at apex ; neuration blackish, partly 

 pale ; subcosta and radius yellowish with black spaces, the former 

 commonly darker than the latter ; most discal cross-veins broadly 

 margined with dark grey, giving the wing a chequered appearance ; 

 some darkish spots on disk and also near apex ; pterostigma yellowish 

 with two darkish spots ; inner marginal area irregularly marked with 

 greyish ; several dark spots along radius ; costal cross-veins mostly 

 blackish, but partly pale so as to cause irregular pale and blackish 

 alternate spaces. 



Costal cross-veins mostly furcate, some of them in basal area of 

 wing being simple; radial sector with 10-16 branches; discal cells 

 mostly quadrate, irregular in arrangement. 



Hindwing hyaline, rarely very slightly tinged with greyish ; with- 



Fig. 2. 



Coxa I of Osmylus tesseUatus 

 M'L. 20 x . 



black mark between antenna; ; antenna; 

 black with a yellow ring around base ; 

 ocelli minute, yellow, the foremost one 

 a little apart from the remaining two ; 

 palpi fuscous black. 



Prothorax bright piceous, with grey 

 pubescence, posteriorly slightly suffused with 



