270 



p. 327, P. undata (Jam.) p. 328, P. glaucescens (St. Dom.) 

 p. 328, Macroglossa aedon (Cuba) p. 357, M. tantalus (An- 

 tilles, S.? A.) p. 358, 31. sagra (Cuba, Mex.) p. 360, M. cor- 

 vus (Nicaragua, Columbia) p. 361, M. phaeton (Cal.) p. 362, 

 M. flavofasciata (Hudson's Bay) p. 364, M. thetis (Cal.) 

 p. 368, 31. gracilis (U. S.) p. 371, 3£. ruficaudis (Canada) 

 p. 371, 31. pyramus (U. S.) p. 372, 31. fuscicaudis (Ga.) 

 p. 372. Several unrecognized species are noticed on p. 558. 



In the portion of this volume devoted to the Sesiidae and 

 Castnidae, only two species of North American larvae are de- 

 scribed by attributing to them any characters additional to those 

 of the family to which they belong. These are Thyris fenes- 

 trina, on p. 489, and Th. vitrina, on p. 490, the latter de- 

 scribed from a figure by Abbot. The larvae of both families 

 are characterized alike, as being pale or discolored, almost 

 glabrous, having on their bodies a few very small tubercles, 

 from each of which springs a very fine hair ; the back of the 

 first segment and that of the last each is covered with a scaly 

 plate ; the mandibles are stronrr, and the larvae live within the 

 stems of vegetals. They show no trace of a horn on the 

 eleventh segment. 



Arctia isahella. Brief descr. in Harr. Ins. Inj. Veg., p. 

 355, fig. 



I am not aware of any other published description. Mr. N. Colemati 

 obtained larvae from eggs, and writes to me of them as follows : " At first 

 they were very dark and as they grew showed quite black. 1 noticed after 

 a while that a reddish ring appeared on some of them, and further watch- 

 ing showed that every fresh meulting developed a new red ring, till the 

 fifth was reached. As thej- were kept in a box they did not grow as fast 

 as those at liberty, for I captured full grown ones in the garden, and by 

 the roadside while these were still small. Of the mature ones caught none 

 had over five red I'ings, though Harris says they have six. In some cases, 

 though not every one, the fifth red ring, reckoning from head back, has 

 only two tufts of red, the rest being black." Harris says : "Hairs on first 

 four and last two rings black, on intermediate rings tan-red." Two speci- 

 mens in my collection agree with this description; the two others have the 

 lowest tuft on each side of segment 10 red and the rest black; in one of the 

 latter only the lowest tuft on each side of segment 5 is black, in the other 

 the whole of segment 5 is black. (Zi'. Pickman Marui.^ 



