Scuddor.] 218 



luteous (In life dirty yellow); labrum black ; eyes in life green ; thorax 

 brassy-green (as In life) sometimes dulled with fuscous ; dorsum In front 

 tinged with faint dull ferruginous, as In life, not seen in the fuscous 

 individual, mesothorax with an abbreviated stripe, metathorax with a 

 central spot pale yellowish-brown (In life whitish with a tinge of yel- 

 lowish-brown) ; between them, below the mesothoracic spiracle, an In- 

 distinct spot of yellowish-brown as in life ; wings hyaline, the posterior 

 pair slightly fulvescent next the membranule ; pterostlgma brownish 

 t'erruginous, membranule fuscous, whitish at the base ; legs black, fore 

 femora, except apex and inferior surface, yellowish-brown ; claws of 

 tarsi with a small interior tooth beyond the middle ; abdomen very 

 dark green, almost black, behind segment 4 covered with very short 

 yellowish pile ; the sides on segment 2 not extending on to genital 

 lobes, a spot on side at base of segments 3-7, and apical third of dor- 

 sum of 10 reddish-brown (In life pale yellowish-brown) ; abdomen 

 swollen at the base, segment 3 much constricted, beyond gradually 

 swollen so as to be a little broader than the base at apex of 5, gradu- 

 ally narrowed again so as to be half as broad in middle of 8, widen- 

 ing again as gradually to the apex of abdomen, dorsum of base of 

 segment 10 sub-carinated ; appendages black, apex of superiors dull 

 yellowish-brown, especially above, dilate with very long yellowish- 

 brown hairs near the apex except beneath, forming a brushlike termin- 

 ation to the appendages ; superior pair rather long, depressed and 

 compressed at the base, sub-cylindrical beyond; when viewed from 

 the side slightly arched, when viewed from above directed outwards at 

 the extreme base, and thence inwards so as to bring the apices to- 

 gether ; at the extreme base a supero-internal tooth, on the basal third 

 two infero-external teeth, swollen especially exteriorly before the apex, 

 upon which swollen portion the whorl of long hairs is placed, the ex- 

 treme apex produced to a sub-depressed triangularly pointed recurved 

 and upcurved lamina ; Inferior appendage half as long as superior, 

 triangular, apex blunt and furnished with a recurved ungulculus, the 

 appendage supported upon either side at the base exteriorly with a 

 short semicircular lamina. 6-9 antecubitals ; 5-6 postcubltals ; two 

 rows of discoidal arcolets. 



Length 1.8 ; alar expanse 2.68-2.60; pterostlgma .09 In.; superior 

 appendages .14 in. 3 5. The Glen, White Mts. Aug. 20-28. 



Cordulia elongata nov. sp. 



Vertex and front except sides and on lower border brassy-green ; 

 sides and lower border of front brownish yellow (In life luteous); rhlna- 

 rlum and labium luteous, as In life ; epistoma very dark brown or black, 

 labrum black; occiput blackish, in the ? with ferruginous hairs poste- 

 riorly ; eyes In life bright grass-green above, brownish-green below, a lit- 



