in tlic Basin of the Aniasons. 2(51 



lines, one before the middle simply curved, the other beyond 

 slightly siniioiis ; a dark central dash between them at the end of 

 the cell ; fringe glossy, with the base darker, the extremities light, 

 in some examples pearly white. Hmd wing oleaginous, in the 

 rosy-red specimens with the hind margin more or less broadly 

 reddish ; in the browner examples merely brown ; sometimes also 

 showing an obscure darker line near the anal angle ; fringes as in 

 fore wing. Head, thorax, and antennas concolorous with the fore 

 wings ; abdomen more cinereous, with rosy or brownish anal tuft. 

 Under side glossy yellowish, tinged with rosy or brownish ; tongue, 

 under side of abdomen, pectus, and legs pearly white ; first joint 

 of the fore tibiae brown on the outside. Expanse of wings, 

 18—20 mm. 



Eight males, taken, it would seem, more or less 

 throughout the year : the first at Gepatiny, Pi. Purus, 

 March 29th, 1874 ; the second, E. Madeir.a, May 17th, 

 1874 ; the third, Sept. 2Kth, 1874, at Mannia, R. Purus ; 

 the fourth from P. Javary, Dec. 7th, 1874; the fifth 

 from Boaventura, P. Jutahi, Jan. 24th, 1875 ; the sixth 

 from P. Jutahi, Jan. 27th, 1875 ; the seventh from 

 P. Jutahi, near P. Curnem, Jan. 29th, 1875 ; and the 

 eighth and last from Santarem, also on P. Jutahi, 

 Feb. 2nd, 1875. 



It seems strange that of a species thus taken on and 

 oft' throughout the year no females should have been 

 met with, nor any previous record of its occurrence be 

 discoverable. 



SICULODID^. 

 45. Iza nehulosa, n. b. 

 Fore wing shining ochreous-gi'ey, with darker markings forming 

 a basal patch, the outer edge of which is most distinct towards the 

 costa, but fades gradually away towards the inner margin. An 

 angulated central fascia as in I. nubecula, but more indistinct, and 

 an indistinct submarginal fascia ; extreme apex paler, more glossy. 

 Hind wing dark ochreous with darker reticulations, which in the 

 centre become brownish, and form a disconnected fascia. Head, 

 thorax, abdomen, and fringe dark ochreous. Under side pale straw- 

 colour, with all the markings plainer. Expanse of wings, 45 mm. 



Two males from P. Jutahi, near the mouth of R. 

 Curnem, Jan. 29th, 1875, and one ? from Lages, mouth 

 of P. Negro, Aug. 4th, 1874. 



This species l)elongs to Guenee's ninth group, which 



TRANS. ENT. SOC. LOND, 1889. PART II. (JUNE.) T 



