276 



CLASSIFICATION 



[CH. 



Mask elongated, hollow, with the elongated median lobe deeply incised medially. 

 Caudal gills peculiar, the median one short, lamellar; the laterals long, 

 triquetral. No lateral abdominal gills. 



Family 2. LESTIDAE. 



Wings distinctly petiolate. Ms fused with M 2 for some distance, leaving 

 it via an oblique vein. A long bridge formed from the latter back to near 

 the bifurcation of M 3 from Jf x _ 2 . Antenodals variable in number. Very 

 little arrangement of cross-veins into transverse sets. Pterostigma long, 

 regular. Wings rarely coloured. Body-pattern bicolorous, or metallic 

 unicolorous. 



Larva of slender build ; abdomen long and cylindrical. Mask with highly 

 specialized forms of lateral lobes ; gizzard with eight large specialized fields, 

 carrying both large and small teeth. Caudal gills in the form of simple 

 lamellae. 



Subfamily 1. Epiophlebiinae (fig. 141). 



Wings only slightly petioled. Nodus close to middle of wing. Numerous 

 antenodals, those of the first and second series not corresponding, except two 

 (the first, and one between the third and sixth) which are specially thickened 

 (cf. Aeschnidae). M z arises at subnodus. Bridge connects proximally with 



Fig. 141. 



Wings of Epiophlebia superstes Selys, Japan. 

 (Hw. 31 mm.) After Needham. 



Af 1 _2 a little distad from M 3 . Quadrilateral of hindwing broader than that of 

 forewing, with longer costal side. Insect of rather stout build, resembling 

 the Gomphinae ; eyes close together in male ; body-pattern bicolorous. Larva 

 unknown. 



