244 



" Cocoons of B.huttoniy produced in the house from worms placed 

 upon small branches set in jars of water to keep them fresh, are 

 always inferior to those produced upon the trees, and I doubt not 

 you would find this to be the case with the domestic species in 

 Bengal." 



The Agri-Horticultural Society of India has lately reported most 

 favourably on the silk of this species, which has been brought into 

 notice by Capt. Hutton. The worm spins in all weathers, whereas 

 the common silkworm, B. mori, is apt to be thrown off work by a 

 passing cloud. It is thought that this new silkworm may prove 

 commercially important, and Government is solicited to institute ex- 

 periments regarding its productive powers (vide 'Madras Journal,' 

 March 1857, p. 268). 



4. Bombyx horsfieldi (Moore). 



Bombyx horsfieldi, Moore, Catal. Lep. Mus. India House, ii. p. 380. 

 pi. 11a. fig. 5 (1858). 



Hab. Java. In Museum, India House. 



This species, of which a female only was collected in Java by Dr. 

 Horsfield, is of a brownish-grey colour. The fore-wings have two 

 transverse, slightly curved, brown bands, the first one-third from the 

 base, the other one-third from the apex, the latter having undulated 

 margins ; between the two bands is a grey-centred brown discal spot ; 

 a brown streak immediately below the apex, its inner margin being 

 pale. The hind-wing is pale ferruginous at the base, and has a nar- 

 row curved pale submarginal line, the veins being also pale ; and on 

 the abdominal margin are two blackish-brown spots, one being near 

 its base, the other about its middle. Expanse 2-f- inches. 



5. Bombyx subnotata, Walker. 



Bombyx subnotata, Walker, Journ. Proc. Linn. Soc. Lond. iii. 

 Zool. p. 188 (1859). 



" Male. Ferruginous, thick, pilose. Fore-wings rounded at the 

 tips, extremely oblique along the exterior border, which is slightly 

 angular in the middle and slightly excavated on each side ; under- 

 side with a yellow costal spot near the tip. Hind-wings with the 

 interior border densely fringed towards the tip. Antennas broadly 

 pectinated. Mouth obsolete. Abdomen much more slender than 

 the thorax, not extending beyond the hind- wings ; anal lateral appen- 

 dages fringed. Legs short, stout. Expanse of the wings 1 6 lines ; 

 length of the body 7 lines." 



Hah. Singapore. 



This species was collected by Mr. A. R. Wallace. 



6. Bombyx lugubris (Drury), Exot. Ins. iii. p. 28. pi. 21. f. 5 

 (1773). 



Described as inhabiting Madras ; requires further confirmation 

 before we can say that it belongs to the genus Bombyx (as now re- 



