AGRIONIDiF. 589 



Sub-fara. 1. CALOPTERYGIX.E. 

 CalopteryginoD, De Seli/s. 



A. 



Arculi sectores dux apud ejus meilium incipientes. Quachila- 

 teralis leic rei^uluris. 



a. 



VcnnlaB costales et subcostales luimero fere ajquales. 



Epistoma non promineus. Abdomen longum, gracile, cylin- 

 d lie urn. 



Pterostig-ma nullum vel brevissiraura. Quadrilateralis sat 

 reticulata, spatio basilari loDgiludine ajqualis. 



Div. 1. CAL0PTER7X. 



Quadrilateralis antice recta vel fere recta, lateribus a?qualibus. 



Calepteryx, Leach ; Steph. ; Burm. 

 Calopteryx, Ramb. ; De Seli/s. 



Genus 1. CALOPTERYX. 



Antennarum articulus lus cylindricus, 2o multo brevior. Ahe 

 (juatuor uniculores ; sectores omnes siniplices, non ramosa). 



Labium lengthened, deeply severed into 2 narrow obtuse divi- 

 sions : labial palpi very slightly covering the mouth, with the 

 penultimate joint shorter or not longer than the labium, notched at 

 the tip, prolonged into a point inwardly where it bears a long spine ; 

 last joint delicate, flattened, shorter by half than the preceding, nar- 

 row, slightly bent : eyes very remote : abdomen much longer than 

 the wing ; upper appendages of the male varying but little, formed 

 like rounded pincers : legs very large, fringed with long slender 

 hairs : hind-border of the wings prolonged even to the base; reticu- 

 lation very line and very close, quite unvarying; humeral part form- 

 ing less than half but much more than one-third of the length of the 

 wing ; pterostigma anomalous, only appearing in the female, or 

 obsolete, or also appearing a little in the male. 



3 I- '2 



