240 On the Neuroptera of the Hawatian Islands. 
spot on either side, the posterior margin, and a very large 
spot on either side continued along the margin, reddish 
orange. 
Thorax with broad reddish-orange antehumeral lines, fol- 
lowed by a broader black humeral band which has a projection 
on its lower edge anteriorly. Sides reddish orange, with an 
appearance as of two yellow bands and with vestiges of two 
black lines. Pectus reddish, with two black spots. 
Legs reddish; spines black, those on the tibie long and 
divaricate ; apex of tarsal joints and tips of claws black. 
Abdomen bright red; a spot at the base of first segment, a 
narrow ring at end of second to fifth, a broad ring at apex of 
sixth (extended into a line on the sides), the whole of the 
seventh and eighth (except an apical ring and the ventral 
margins), black. 
3. The tenth segment is broadly and shallowly excised. 
Superior appendages longer than the tenth segment, diver- 
gent, black, red at the base, stout; the apices inturned 
and nearly uncinate, broadly dilated at the base inferiorly, 
the dilated portion inturned and furnished with two black 
teeth, the lower small, the upper large. Inferior appendages one 
third shorter, slender, not divergent, acute, slightly incurved, 
gradually dilated to the base. 
@. Unknown. 
Length of abdomen, ¢ 38 millim.; length of posterior 
wing 28 millim. ; expanse 58 millim. 
“Oahu, at no great elevation above the sea” (Blackburn, 
one male, No. 67). 
The neuration in this species is much more regular than in 
M, Blackburnt. 
The Hawaiian Agrionina probably form a special group ; 
but, excepting in the two large species, I have not considered 
it prudent to separate them from “ Agron” on account of 
the apparent impossibility of being able to give characters 
(other than geographical). In the whole of them the wings 
cease to be petiolated before the basal postcostal nervule (only 
slightly before in calliphya), the postocular spots are present 
(except in pacijicum), and the female has no abdominal spine 
(¢. e. in those species of which that sex is known). In most 
of them the tibial spines are long, but not as strikingly so as 
in Argia. And in nearly all of them (I might say actually 
in all) there is a striking similarity in male anal cha- 
racters (reminding one, to some extent, of that which obtains 
in Agrion Lindenit, but with much longer inferior appen- 
dages). 
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