72 FAUNA HAWAIIENSIS ' 



(14) Agrion nesiotes, sp. nov. 



Very slender in form, with the abdomen black, the two basal segments entirely or 

 for the most part red above, as also the two apical. Face pale below the antennae, 

 clypeus black above in the %. Posterior margin of head pale, post-ocular spots present 

 or absent. Thorax with the median carina and lateral dorsal lines yellow or red. Legs 

 red or pale. Abdomen with five or six segments more or less pale in tesseral examples, 

 otherwise as above. Wings with 16 — 20 post-cubitals. Three cellules between the 

 quadrilateral and the nodus. Post-pterostigmatic cellules of the posterior wings more or 

 less duplicated. Posterior margin of the prothorax in the % produced backwards in the 

 middle, the lobe so formed subtruncate. 



^ superior appendages very long, twice as long as the loth segment, gently curved 

 on their outer margins, the extreme apex bent inwards, dilated only for a short distance 

 at the base, the inferior margin of the dilated portion armed at its apex inwardly with a 

 black spine. Inferior appendages bent inwards, acute at the apex, short, extending 

 only about as far back as the apex of the dilated portion of the superior pair. Tenth 

 segment strongly raised at the apex about the middle of its margin, and narrowly 

 excised, with a regular fringe of hair along the excision. 



$ superior appendages short, black ; valvules and their appendages pale. (Plate V. 

 figs. 10 & 10 a.) 



Length of abdomen 36 mm. ; posterior wing 23 mm. ; expanse 49 mm. 



Hab. Hawaii (2000 — 4000 ft); widely distributed, but rarer than the other 

 species found on this Island. Taken in Kona, Kau, and Puna districts. 



(15) Agrion Jugoj'um, sp. nov. 



Very slender and elongate in form ; abdomen with several of the basal segments 

 red. 



Face below the antennae entirely or almost entirely red or yellowish in the $, base 

 of clypeus and labrum more or less black in the $. Post-ocular spots red or yellow and 

 always united by a line of the same colour. Pronotum with the anterior and posterior 

 margins and some spots on the dorsum red or yellow. Median crest of the thorax, 

 a line on either side of the dorsum and the sides more or less of one or other of these 

 colours. Legs red or yellow with black spines. Wings with 22 — 24 post-cubital 

 cellules, pterostigma bright wine-red in the Lanai examples, generally much less 

 brightly coloured in those from Maui. Post-pterostigmatic cellules often forming two 

 complete rows, and nearly always forming more or less of a double series at least in one 

 wing, but very variable, sometimes slightly infuscate. Three, four, or five cellules 

 between the quadrilateral and the nodus. Abdomen of $ with the first four segments 

 nearly entirely red, the next three usually black, or dark, the three apical for the most 

 part red. In the ? three to five segments from the base are red with their apical 



