316 CALIFORNIA ACADEMY OF SCIENCES [Paoc. 4th See. 



reddish, and somewhat roughened by small tubercles. Length 

 66 mm., width about 9 mm. Described from two nearly 

 mature, rather poorly preserved alcoholic specimens. Wreck 

 Bay, Chatham Island, February, 1906. 



Pupa of the usual form, light reddish brown, the short 

 ridged tongue-case applied in a curve to breast, length 40 mm. 

 The specimen is undersized. 



This pale colored Sphinx appears to be the rarest of the 

 genus, no adults being taken at flowers, and the larvae were 

 rather local and were found feeding on a low, succulent Solana- 

 ceous plant at low altitude, at Wreck Bay, Chatham Island 

 (February); Iguana Cove, Albemarle Island (March), and 

 Tagus Cove, April 30, 1906. 



Alar expanse: $ 90, 93 mm.=91.5 mm. 



5 74, 94, 98 mm.=88.7 mm. Plate XX, fig. 7. 



8. Phlegathontius cingulata Fabricius Syst. Ent., 545, 1775. 

 Protoparce cingulata, Holland, Proc. U. S. N. M., XII, 195, 

 1889 ("Galapagos, Chatham Island"). Herse cingulata, 

 Rothschild and Jordan, Novitates Zoologicse, Suppl. Vol. IX\ 

 p. 10 & 11, 1903 (Galapagos). 



The "Pink-spotted" Hawk-moth is by far the commonest 

 and perhaps the most widely distributed sphinx in the Archi- 

 pelago, having been taken by several of the previous expedi- 

 tions to these islands. 



In common with several of the other Galapagos hawk-moths, 

 cingulata is often seen in the daytime at flowers, and in the 

 evening it may be taken in numbers. It flies rather sparsely 

 before sunrise. 



The Convolvulacese, upon which the larva of this moth 

 feeds, are common plants in the Archipelago, and of several 

 species, among which are Ipomcea galapagensis, pes-caprce, and 

 campanulata. The larvae present a considerable number of 

 varieties reducible to two types, those of a green and those of a 

 brown ground color. These two types have several vars. and 

 intergradations. A common form is dark chocolate brown, 

 with two dorsal stripes of straw color, and a creamy white 

 super- and substigmatal stripe, the lower connected with the 

 upper by eight oblique stripes of the same color, widened 



