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NI COU OVO 
by bw bh 
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(o"e) Si Nw 
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New Species of Sierola, With Explanatory Notes. 
KEY TO THE KNOWN HAWAIIAN SPECIES 
OF SIEROLA. 
FEMALES. 
Head extended in front of the eyes, anterior 
margin angulate, sometimes with a cly- 
peal horn 
Clypeal process large 
Clypeal process spatulate 
Clypeal process decurved, dorsally convex, 
without carina 
Clypeal process horizontal, dorsally flat or 
elevate and carinate 
Clypeal process dorsally flat and carinate. 
Shining black 
Dull black, particularly on the head 
Clypeal process medially longitudinally ele- 
vate and carinate 
Clypeal process apically obtusely angulate, 
head considerably longer than wide 
Clypeal process apically acutely angulate, 
head only a little longer than wide 
Clypeal process not spatulate, either a semi- 
circular or transverse lamina or spicate 
Clypeal process a semicircular lamina 
Clypeal process not semicircular, either trans- 
verse or spicate 
Clypeal process transverse 
Clypeal process simple, not rostrate, head 
strongly protuberant beneath 
Clypeal process rostrate 
Head and thorax shining black 
Head and thorax dull black 
Clypeal process spicate 
Head smooth and polished, punctuation fine, 
longer behind, narrower between the eyes 
than var. hawatiensis 
Distinctly sculptured, punctuation coarse, 
wider between, shorter behind the eyes 
than Oahu form 
Clypeal process small 
Clypeal process spicate 
Body thick-set 
Body slender 
Body particolored 
Body entirely black 
— 
on 
— 
ho 
on 
NI 
(o,2) 
Wat. 
13. 
T4. 
distincta 
armata 
nigrescens 
volcanica 
acuta 
magna 
kaucnsis 
notabilis 
sima 
Spicata 
Spicata 
subspecies 
hawatiensis 
nitida 
bella 
gracilis 
