Ncic Species of Sierola, With Explanatory Notes. 



69 



281-280 Head narrowing behind the eyes 



282-283 Punctuation of the head extremely fine, hairy 

 clothing long and delicate, segments of 

 the antennae as wide as long 141- vetusta 



283-282 Punctuation of the head rather coarse, hairy 

 clothing short and inconspicuous, seg- 

 ments of the antennae considerably lon- 

 ger than wide 142- kalihiensis 



284-1 Head not extended in front of the eyes, an- 

 terior margin transverse 



285-290 Large species, over 3 mms. in length 



286-287 Thick-set, head longer than wide, clypeus 

 nearly flat, wings with yellowish brown 

 pigmentation I43- oucta 



287-286 Not so 



288-289 Width between the eyes more than twice the 

 length from eye to vertex, segments of 

 the antennae throughout considerably 

 longer than wide I44- breviceps 



289-288 Width between the eyes less than twice the 

 length from eye to vertex, segments of 

 the antennae beyond the first funicle seg- 

 ment as wide as or wider than long 145. bridzvelli 



290-285 Smaller species, 3 mms. in length or less 



291-298 Species more or less flattened, without great 

 thickness dorso-ventrally 



292-293 Depressed to an extreme degree, mandibles 



black 146. depressa 



293-292 Less strongly depressed, mandibles brown or 

 flavous 



294-295 Head longer than wide by a half I47- philodoriae 



295-294 Head not much longer than wide 



296-297 Legs, antennae and mandibles flavous 148. planiccps 



297-296 Legs, antennae and mandibles fuscous to 



black 149. hoJomclaena 



298-291 Species not dorso-ventrally flattened 



299-304 Slender species 



300-301 Thickly clothed with hair, mandibles black 150. hirticcps 



301-300 Hairy clothing short and inconspicuous, 

 mandibles yellowish or reddish brown 



302-303 Head longer than wide by more than a half, 

 mandibles reddish brown, the base not 

 reaching the eye, gula longer than wide, 

 propodeum rugulose 151. tenure eps 



303-302 Head longer than wide by less than a half, 

 mandibles yellowish brown, the base 

 touching the eye, gula no longer than 

 wide, propodeum delicately sculptured 152. nitens 



304-299 Species not remarkably slender 



305-320 Brilliant, not at all dull 



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