MIC'KOLKPIDOPTERA OF TKXEKI FK. 923 







the first abdominal somite are four black dots in two pairs, one 



behind the other, while on the 



Text-fi" 1 43 anterior half of the renmin- 



ing somites are some more or 

 less strongly indicated slender, 

 blackish, oblique lateral lines ; 

 the ninth abdominal somite with 

 two short black protuberances 

 above. Type (98418) M us. 

 \Ylsm. 



This larva differs in structure 

 from others of the genus, and 

 especially by its much higher 

 metathoracic humps from that 

 of frankeniae Z., although in 

 the imago the two species can scarcely be distinguished. 



Aydistis salsolae is more easily recognised by a glance at the 

 underside than in any other way, for here frankeniae shows only 

 some rather obscure spots on its dull costa, the tornal and apical 

 shades being also insignificant, whereas in salsolae the white costa 

 of the forewings shows very clearly on the under side, making the 

 four costal spots very distinct ; the apical and tornal patches in 

 the cilia are also very clear, and the limbus of the hindwings is 

 thickly sprinkled with black scales, a raised brush of the same 

 along the cubit us. In salsolcie the legs are also somewhat stouter 

 and more distinctly mottled, while scarcely any trace is shown of 

 the subcostal spot at the end of the plical space which is always to 

 be found \n frankeniae ; the spots are also usually larger and more 

 conspicuous, but in bred specimens of both species this is scarcely 

 a reliable character. 



The larva is extremely difficult to rear, and I was successful 

 with only six out of some sixty collected. 



14. (1425) AGDISTIS CAXARIENSIS Rbl. 



Agdislis canariensis Rbl. Ann. KK. Hofmus. XI. 114-5, 146 

 no. 148 (1896) ' : XIII. 380 no. 161 (1899) ' 2 ; XXI. 36, 43 no. 181 

 (1906) 3 : Stgr-Rbl. Cat. Lp. Pal. II. 78 no. 1425 (1901) 4 . 



Hab. Canaries 1 " 4 TENERIFE l ~ 4 : Santa Cruz, 3. Y. 1895 

 (Hedemann} 1 ; Puerto Orotava, 20. IY - 3. Y. 1907 (Wlsm.). 

 FUERTEVEXTURA :< : 15. Y. 1905 (Polatzek}\ 



I have but little to add to what has been already published : a 

 sjx'cimen in Mr. White's collection is probably correct, and ex- 

 hibits the white unspotted costa, beyond the middle of the fore- 

 wing, specially noted in the original description, and sufficing to 

 separate this from others of the genus. I had at first regarded it 

 as, probably a mere variety of some other species, but the distin- 

 guishing character is very clearly shown in a specimen (98415) 

 taken at Puerto Orotava, 3. Y. 1907, which can only be compared 

 with the nearly allied adactyla Hb. 



PROC. ZOOL.'SOC. 1907, No. LXII. 62 



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