DICHOPTEEA. 237 



Synoj^sis of Genera. 



In this synopsis I have not included the very distinctive 

 characters to be found in the structure of the lace, because these 

 can be more readily vinderstood and compared by the figures 

 supplied. The synoptical characters gixen below are therefore 

 siipplementary to the important facial characteristics. 



A. Posterior tibife "with from three to seven 



spines ; pro- and mesonota not sulcate. 



a. Clavus of tegmiua -with a transverse vein. 



a. Head with either a short or moderately 



long- curved cephalic process ; posterior 



tibiffi Avith six or seven spines Dichoptkija, p. 237. 



<i'. Head with a very long porrect cephalic 



process ; posterior tihife with three or 



four spines Pibuocha, p. 240. 



b. Clavus of tegmina without a transverse 



vein. 



h. Tegmina wholly reticulately v^eined Ai.intia, ]>. 241. 



//. Tegmina only transversely veined on 

 apical area. 

 e'. Anterior femora without a spine. 



d'. Head with a well-developed porrect 

 or curved cephalic process. 

 e'. Head not sulcate between eyes . . Dictyopuaka, 

 e-. Head broadly and deeply sulcata ^p. 241. 



between two strong convex ridges 

 situate at inner margins of eyes. . Pltala, p. 240. 

 (r. Anterior femora with a distinct blunt 

 spine near apex. 

 (P. Head with a long, slender, cepjialic 



proce.ss Miasa, p. 247. 



fP. Head not produced in a cephalic 



process Udugama, p. 249. 



r'. Anterior femora with a minute acute 

 spine near apex, 

 f/'. Head with a short anterior recurved 

 process ; lateral ridges to mesonotum 



not forked Centkomeuia, 



d'. Head without anterior recurved pro- [p. 200. 



cess ; lateral ridges to mesonotum 

 forked Dutyophauina, 



B. Posterior tibite with a single spine ; pro- and [p. 2-")2. 



mesonota profoundly longitudinally sulcate. . Symplana, p. 2r)4, 



Genus DICHOPTEEA. 



Dichoptera, Spin. Ann. Soc. Ent. Fr. 1839, p. 286 ; Stdl, Hem. Afr. 

 iv, p. 149 (1866) ; Atki/is. J. A. S. Bencj. Iv, p. 23 (1866). 



Type, B. Injalinata, Fabr. 



JJistribution. Oriental, Malayan, and Australian liegions. 



Head (including eyes) only about halt' the width of the pronotum, 

 more or less elongate, sometimes with a distinct cephalic process, 

 vertex subquadrate, its lateral margins sinuate, its anterior margin 



