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IV. On Hy-potianiB, a new suhfamily of Pyralidss. By 

 Thomas Algernon Chapman, M.D., F.Z.S. 



[Read February 5tli, 1902.] 



The genus Hypotia, Zell., of which there appears to be only 

 one species (corticalis, Schiff., s. v.), presents characters, 

 especially in the imaginal and larval stages, that place it 

 in an intermediate position between the Pyralinai and 

 Phyciti7iai, without permitting it to be properly placed in 

 either. Hence it becomes necessary to give it separate 

 subfamily rank. 



It has hitherto been placed in the Pyraliiix. M. Ragonot* 

 came very near to recognizing its isolated position. The 

 most obvious point in which Hypotia agrees with Phycitines, 

 and differs from Pyralincs, is in the absence of vein 7 of 

 the forewing. M. Ragonot was aware of this, but took 

 the absent vein to be vein 9. I regret that I have not 

 taken advantage of my opportunities to study this vein in 

 the developing pupal wing of Hypotia and of Phycitinai, 

 and am quite unable to say positively whether the miss- 

 ing vein be vein 7 or vein 9, but I entertain no doubt 

 whatever that the missing vein, whether it be 7 or 9, is 

 the same vein both in Pliyciting& and in Hypotia. 



By a very remarkable tour dc force, both Mr. Meyrick f 

 and Sir George Hampson J presented Hypotia with the 

 missing vein, and so overlooked the other Phycitine char- 

 acters it possesses, and easily included it in the PyraliniB. 



The imago of Hypotia differs from Pyralime and agrees 

 with Phycitinm, in having lost vein 7, in having vein lb of 

 forewing simple, and in the $ having the frenulum simple. 



It differs from Phycitines, and agrees with Pyralines, in 

 the absence of ocelli, and in the pection of hairs on the 

 hindwing being below, and not on, the lower margin of cell. 

 The neuration of the hindwing is close to that of Pyralincs, 

 but occurs also in Phycitines, and is not specially distinctive. 



The larva resembles Phycitines not merely superficially ; 

 it has, indeed, little in common with Pyralines, and agrees 



* Essai sur le classification des Pyralites, p. 154, 1891. 

 t Transactions Entom. Soc. Lond., 1890, p. 473. 

 t Transactions Entom. Soc. Lond., 1896, p. 504. 



TRANS. ENT. SOC. LOND. 1902. — PART I. (APRIL) 4 



