( 345 ) 



beyond midillo, then somewliat pr.ijectinn; I'lontad, forming a rounded lobe; IV 

 of liiiidwing before centre of cell, D- .soniewbat curved, D* not or little shorter 

 than D' ; frennhmi vestigial, retiiiaculiin] ahsciit. Antenna peonliar ; ¥ : segments 

 all longer than high, especiallv the distal ones, each thickest basall}', the sides 

 slightly rounded basally in dorsal view, and feebly sinuate ajncally ; broader than 

 high, and also than long excepting distal segmeuts, depressed, somewhat prismatical, 

 the ciliated surface feebly concave in middle, no distinct groove, no indication of 

 pectinations, ciliae short, fasciculated ciliae barely indicated ; 6 : segments much 

 more obviously truncate pear-shaped in dorsal view (PI. LXI. f. 3. 4. 5) than in ?, 

 strongly com}iressed ventrally, sides deeply grooved, the groove bordered above by 

 ii kind of carina, which projects a little over the groove, this carina not scaled ; 

 it is homoh)gous to the lateral expansion of other Sphingid antennae ; the com- 

 pressed ventral parts of the segments separate (PI. LXI. f 3, lateral view) ; 

 each segment produced snbveutrally on each side into an apical and a longer buml 

 process which project laterad, the processes compressed, the longer diameter of 

 the transsection vertical ; the fascicles of long ciliae along the edges of the processes, 

 forming on each segment, with the (jther fascicles, an apical and a basal row, which 

 rows join eai'h other above, the arrangement of the fascicles, therefore, the same 

 as in other Sjiliingitlae. The processes being expansions of the ciliae-bearing area 

 are as a matter of course not scaled ; they are not homt>logons with the branches 

 of other pectinated Sphingid antennae, excepting those of Moiiarda, agreeing best 

 with those of Saturniidae, as pointed out by Smith. The segments are slightly 

 asymmetrical (PI. LXI. f. .5). The antenna differs, however, essentially from 

 tiiiit of the Saturniids and C!eratocampids iu being scaled above, in possessing deep 

 side-grooves, in the ventral part being strongly compressed, and in the single 

 sensory cone being conspicuous and remaining in its place close to the end of the 

 segment. 



Larva pale green or reddish, with oblique side-stripes, which are bordered with 

 red in front or are preceded by red snbdorsal spots, these red sjjots resp. borders 

 sometimes absent, anal segment mostly witli a dark mesial streak; heavily granulose, 

 head stiongly triangular, bifid, sjiarsely granulose all over ; horn long, feebly 

 curved, granules very high ; anal tergite with a higher grannie at each side of 

 tlic dark medial streak. — Food-plants : Jngluns, Ostrija. 



Pupa opacjue, head with four projections, antenna-case with a row of sharp 

 grannies or teeth, Semites 4 to 6 of abdomen with a subapical carina which is 

 dentate laterally in S, laterally and ventrally in ? ; tongue-case triangular, much 

 shoiter than the cases of the forelegs, reaching only one-third the way from its base 

 to the apex of the wing-cases ; abdominal segments 7 to 10 ventrally flat, the sides 

 subcarinate, those of segment 8 expanded, armed with sharp teeth which point 

 frontad, eighth segment humjied dorsally in S ; cremaster truncate, angles produced 

 latcrail iiito a sharp tooth. 



Ilalj. (.'anada to Florida and Texas, westward to the Mississippi basin. 



One species. 



282. Cressonia juglandis. 



Uph'mj- jiiiiliiudiH Abbot & Smith, Lep. Givnjia i. p. 57. t. 2'J (17i)7). 



Sjj/ihix hiHUihiliK Martyn, I'si/ihr t. 20. f. 4'.l ; t. 21. f. 5,3 (17'.)7). 



Amnrjihn (/rnliilii Jiii/liiMlix, Hiibiier, Samml. Ex. Niihm. i. t. 171 (180(i-24). 



t'"li//''il<:ltu«Jiii//,i,i(/,i,, Iliibuer, I'ers. hck. Scliiii. p. 141. n. IfilO (1822). 



SmeriitlliuH Jiii/laiiiliK, Lepellulicr & Serv., (.(■. p. 441 (IHi.O) ; Harris, in SiUiui., ,/uiini. Sci. Art 



