412 



Subfamily ÀPHANIN^. 

 Division Cleradaria. 

 D YAK AN A gen. nov. 



Head shorter than pronotum, not longitudinally furrowed, eyes 

 inserted about middle of head, ocelli placed almost immediately 

 behind eyes and at latéral margins of head, behind eyes globose; 

 first joint of antennœ passing apex of head, second joint more than 

 twice the length of first, tliird and first subequal; rostrum 

 reaching the intermediate coxae; pronotum longer than head, 

 broader than long, narrowing anteriorly, the latéral margins ridged 

 and sinuate; corium much longer than the membrane; femora 

 moderately thickened but unarmed. 



Allied to Henricodohrnia Bredd. 



Type : D. dissimilis Walk. (Lygœus). 



Hab. : Bornéo. 



I had previously placed this species in the genus Pactye Stâl 

 (Ann. Mag. Nat. Hist. [ 7 ] VIII. p. 476 [1901) but having recently 

 received a spécimen of P. ciconia of Stâl, which in colour markings 

 greatly resembles Walker's species, 1 find a new genus is 

 required for its réception. Byakana is intermediate between Clerada 

 and Pactye; from both it differs by the shorter head which is less 

 attenuated and not stalked as in Pactye but which it otherwise 

 resembles; the pronotum is much like thatof Clerada. 



MAHISA gen. nov. 



Head about as long as expanse of eyes, anteriorly subacute, 

 obscurely transversely depressed between anterior margins of 

 eyes, moderately globose between and behind eyes where there is a 

 narrow central longitudinal striation, narrowed at base into a very 

 short neck, eyes sifuate at about centre of head, and oceUi placed 

 just behind them at sides of head; antennee with the first joint 

 moderately thickened and distinctly passing apex of head, about 

 half as long as second, and a little shorter than third; rostrum 

 reaching the intermediate coxse, first joint reaching eyes, second 

 almost reaching base of head, third very long; pronotum much 

 shorter than broad at base, the latéral margins concavely sinuate, 

 anterior margin broadly moderately elevated, depressed on disk; 

 scutellum short, with an oblique ridge starting from each basai 

 angle and uniting with a central longitudinal ridge on apical area; 



