( 36fi ) 



any oilier sjiccics on iicconiit of tlic |iroiiniieiitly liaii<leil iibdonieii ; it is one of the 

 very few s|ii'c,ie8 iiaiued l)y Liime wliidi lias received only one name. Size 

 variable ; our smallest sjieciiucn (from -lamaica) little more tliaii iialf tlie size 

 of the largest. 



6. Tenth tergite and sternite of the same length, the tips of the slender 

 sternnl processes recnrved, not projecting beyond the obtuse ends of the tergal 

 lobes. Harjx! long, reacliing to middle of clasper, dilated and strongly compressed 

 distally, a])ical jiart so twisted tiiat its flat side is almost horizontal (or vertical 

 upon the j)]ane of the clasjier). Penis-sheath similar to that of cmmcri. 



Larva (according to Burmeister, l.c^i yonng : green with an orange dorso-lateral 

 band ; adult : bluish above, greenish at the sides and below, the two colours 

 separated by a pale band running from head to horn ; thorax with a black mesial 

 patcli partly encircled with white and red. 



I'upa marked with black stripes. 



Mr. W. Schaus found another larva at Ilinconado, in Mexico, from which he 

 bred specimens identical witli ello except in being rather small. We have dissected 

 one of the $$, and cannot find any difference from the sexual armature of a series 

 of ordinary large ello. We may here have a case of that dichromatism in the 

 larva which is so abundantly found among the Sj/hingidae, and of which Spherodina 

 abbotti is such a striking illustration. Here is Mr. Schaus's descrijition : A little 

 smaller than ello. Head and first segment pink. Prolegs jnnkish, circled witli 

 black. Abdominal legs flesh-colour, witli black and red circles. Anal claspers and 

 lappets brownish, dotted with white. Body purplish grey ; anteriorly on each 

 segment a small black subdor.-al sjiot. The large eye-spot between second and 

 third segments is surrounded with brown, and lias posteriorly a white transverse 

 spot ; dorsally towards the sides and anteriorly there is on segments 4 to 11 a large 

 black patch, all connected together by fine black lines extending from the head 

 to the horn. Stigmata white. Laterally below the black jiatches there is a 

 brownish band of mottled red and grey, and anteriorly on each segment two white 

 spots, one above the other. Horn short, conical, reddish, black at the base. 

 Under surface flesh-colour, with numerous small black lines. 



Gundlach, I.e., describes also two forms of the caterpillar. 



Herr von Bonninghausen, I.e., maintains that there are two species confounded 

 under ello ; the one, he says, has in both sexes a black streak on the forewiug from 

 the base to the apex. All the ? ? which we have examined were without such 

 a streak. We have not seen Bonninghausen's supposed streaked ? , but we have 

 no doubt that Bonninghausen's statement is based on a mistake. 



Ilab. Tropical and Subtropical America, as a wanderer as far north as Canada. 



Very common. 



Li the Tring Museum ;3(lU-odd specimens. 



295. Erinnyis yucatana. 



*j!<ii,i,iiillii(s i/watiiiKi Dnice, Aii/i. Muy. X H. (G). ii. p. 238 (1W8S) (Yucatan). 

 hoijmithus (?) ,/ucitlami.i, Kirby, Cal. L,-p. Hit. i. p. 6'.)S. n. 17 (18',lL'). 



Isogmilhus yiirataiim Druce, in Biul. Ceiitr. Aincr., Lap. JJet. Siippl. p. 312. ii. 3. t. (iS. f. 1 (189G) 

 (Mexico ; Yucatan). 



c? ? . This is an Erimii/is, not an Isognathus. The most robust species of the 

 genus, resembling in this respect some Isognathus. The transverse zigzag lines 

 of the whitish grey forewing are sometimes rather distinct. The sexes diff'er in a 

 similar way as in ello and obsciira. The longitudinal basi-apical streak of the 



