88 INSECUTOR INSCITI/E MENSTRUUS 



NEW MICROLEPIDOPTERA FROM BRITISH 

 GUIANA 



By AUGUST BUSCK 



A collection of Lepidoptera recently received {or determination from 

 Mr. H. W. B. Moore, of British Guiana, contained the foUowing Micros. 

 All of these are of particular interest because their life-histories and food- 

 plants were ascertained by Mr. Moore, who will eventually publish more 

 detailed notes thereon. 



Arauzona moorei, new species. 



The very long and slender labial palpi with basal part of second joint 

 whitish ochreous, upper part blackish brown ; terminal joint blackish 

 brown. Antennae dark metallic blue with a broad silvery white band at 

 apical third ; base of antennae thickened with scales and strongly ciliated 

 until the white band. Face and head dark metallic blue; a narrow 

 golden yellow collar. Thorax blackish blue, streaked laterally with ochre- 

 ous ; patagia golden ochreous. Forewings black with a golden ochre- 

 ous longitudinal subcostal streak from base to apical third and on the 

 middle of the wing an adjoining broad transverse ochreous band with 

 poorly defined edges and not reaching the extreme dorsal edge. Hind- 

 wings black with silvery white costal edge and costal cilia and with un- 

 sealed transparent area covering the entire dorsal part of the wing below 

 the cell, with but the veins and the dorsal edge narrowly black. Abdo- 

 men black above with the posterior edge of (irst and third joints golden. 

 Entire underside of body and beisal half of the legs silvery white; tarsi 

 and end of tibiae dark blue. Alar expanse : 1 4 mm. 



Habitat : Craig, British Guiana. 



Food plant : Pisonia inermis. 



U. S. Nat. Mus. type No. 160 II. 



" Larva feeds on the tender leaves, making a dense, elongate, white 

 web, which greatly resembles the nests of some of the Attid spiders." — 

 Moore. 



Dichomeris servilis Walsingham. 



Two specimens of this species were bred by Mr. Moore at the Botan- 

 ical Gardens, British Guiana. The species was originally described from 

 Panama (Biol. Cent.-Am., Lep. Het., iv, p. 103. pi. 3, fig. 25, 1912). 



Food plant : Ipomoea fastigiata. 



