426 EEVISION OF FAMILY SATURNIID^. 



" Columbiahas three pair of coral red ones, situated on the third, fourth, 

 and iifth segments; the remaining sis pair, as well as the single one of 

 the last segment, are yellow. Lateral tubercles whitish. 



" Cecropia has two pair of coral-red tubercles ; these are on the third 

 and fourth segments ; the remaining dorsal ones are yellow as in the 

 preceding. Lateral ones pale blue. 



" Gloveri has the same tubercles in number and form as the two species 

 above alluded to, but, as I have shown, these are all yellowi%h ; lateral 

 ones bluish white. 



'' Ceanothi has three pair of dorsal yellow tubercles. These are on the 

 third, fourth, and fifth segments; the sixth segment has merely faint 

 white raised spots in place of tubercles, and the remaining segments 

 are without either tubercles or spots dorsally, with the exception of 

 the twelfth, which has the usual single yellow tubercle. This species 

 differs from all the others in the absence of dorsal tubercles on all the 

 segments except the third, fourth, and fifth. It is also devoid of lateral 

 tubercles, these being only represented on the third segment by white 

 spots, and on the fourth to eighth by mere black points ; the ninth, tenth, 

 and eleventh segments are devoid of all spots whatever. 



"Thus it will be seen that gloveri differs from Columbia and ceanothi 

 in having all the tubercles yellow, and from ceanothi in having dorsal' 

 and kiteral tubercles on all segments (excepting, of course, the first and 

 second), while the latter has these appendages only on the third, fourth, 

 and fifth segments, besides the single one on the twelfth." 



It will be seen thus that the color of three of the pairs of dorsal 

 tubercles makes the distinguishing feature of the larva, and must pre- 

 vent the union of this species with Columbia until further breeding has 

 established the validity or invalidity of this character. 



A. ceanothi Belir., Pr. Cal. Ac. N. Sci., 1, 47, 1855 {Saturnia); Strk., Lep., 1, 102, pi. 



xii, f. 2, 1875 (Samia); id., p. 120, 1876 ; Pr. Dav. Ac. Sci., ii, 277, 1878 (Samia); 



Morris Cat., p. 21, 1860; Wlk., C. B. M., xxxii, p. 525, 1865 (Samia); Hulst., 



Bkln. Bull, iv, 57 (hybrid of); Hy. Edw., Pr. Cal. Ac. Sc. (life hist, and food 



plants). 

 californica Grt., Pr. E. S. Ph., v, 229, 1865, note. 

 eiiryalus Bd., Ann. Soc. Ent. Fr., iii, 2d ser., xxxii, 1855; (not desc.) Pack., Pr. 



E. S. Ph., iii, 380, 1864 (Samia euryale) ; Guide, 298, 1878 (6th ed.) (Platy- 



samia). 

 Pale, somewhat rusty red brown, with a slight crimson tint, the 

 vestiture of wings very thin, still further diluting the color and making 

 it difficult of definition. The body vestiture is more brick red. A 

 white collar and basal band on thorax. Primaries with the usual white 

 bands, similar in shape to those of gloveri, except that the basal one is 

 more augulated and is not inwardly black margined. Beyond the outer 

 band the shade is a very light rosy crimson to the outer pale luteous- 

 gray space. The outer fine dark line and the lilac patch and apical 

 black spot are as usual. There are no black spots in the interspaces at 



