( «1 ) 



:?6. Amphimoea walkeri. 



*Aiii/ihiiiiii.r inil/.iri Boisduval, Spec. (ini. I.i'ii. Ihl. i. p. CiT n. 7 (1875) (Oy.ipock ; (iuyaiui ;— coll. 

 Charles Oberthilr) ; Schaus, £/rf. xVcfOs vi. p. 142 (1895) { = slimiliii(jiri = ma(jiujiciis); Driice, 

 Bi<il. Cent): Amri:, Let. Het. Supjd. p. 311. n. 3. t. 65. f. i (189G) (Gliontales, Nicaragua; 

 Chiriqui ; Guiana). 



*Aiii/ihii>i;/x sI'niiHiKjin Druce, Ann. Ma;/. X. H. (G). ii. p. 237 (1888) (Chiriqui ;-coll. Staudiiigt-r). 



Cocyiiiis utaudiiKjcri, Kirby, Cat. Lip. Hit. i. p. (iHd, n. 7 (18iJ2) (Nicaragua ; Panama). 



Cocylius walkeri, id., I.e. p. G87. n. 11 (1892) (Cayenne !). 



*Coctjtiw mar/ril/icKs Rothschild, Nov. Ziidi.. i. p. 92. t. 7. f. 21 (1894) (Brit. Guiana ;— Mus. Tring). 



Aiiijihiiiiifr tciiH.-n-i (?), Bijnninghausen, Fr/.t xii. p. 114. n. 15 (1889) (Rio de Janeiro). 



6 ? . Body buft' yellow hcneatli ; ventral scales of second segment of palpus 

 very long, mostly bnft' yellow. Proportional length of tibiae and first tarsal 

 segments nearly as in Cocijtias lueifcr. 



S. Tenth abdominal tergite (PI. XXVII. f 3;i) strongly compressed, earinate 

 above, a]ie.\ suddenly curved downwards ; sternite very short, reminding one in 

 size and position of that of Frotoparce trimacula, the lobe shorter than broad, 

 truncate (PI. XXVII. f. 34), with the angles rounded. Clasper not e.vaggerated 

 in size, as it is in Coci/tius (hiponchel ; harpe (PI. XXXVII. f. 11) resembling 

 that of Frotoparce ochus, with a curved ventral i)rocess and a flat dentate upper 

 ridge, uo tuft of long bristles upon or near the harpe. Penis-sheath (PI. XXIX. 

 f. Ki) armed with two small teeth, one near the end, the other more proxiiual. 



?. Vaginal plate (PI. XIX. f In) laterally recurved, forming rather prominent 

 ridges, mesially convex ; the month of the vagina subapical. 



Ilab. Tropical Oontiuental America, from Nicaragua to Southern l>ia/-il, 

 probably occurring farther uorth. 



In the Tring Museum 2 c?c?,3 ? ¥ from : Pambilar, Ecuador ; 15ritish (Jniana; 

 Surinam ; San Leopoldina, S. Brazil. 



In coll. (Uiarles Oberthilr a fine series from St. Rosa, ( 'olombia ; (iuiana ; and 

 Petropolis. In the Museum at Bern from Para (Goeldi). 



The pupa figured as that of C. antaeiis {=jatrophae) by Bnrmeister, llr.'^-r. 

 Rip. Argent, v. Atlas t. 11. f. 1. 5a. 5b (IST'J), and which we received from 

 St. Catliarina is, we believe, that of .1. ivalkeri, as it differs remarkably from 

 the pupae of cluciitms, dujionckel, and antaeus, which are contained in the Tring 

 Museum. It might possibly be that of C. lucifer (= rivnlaris auct.), but we 

 expect the pupae of lucifor to jwssess the peculiar rough patches found in the 

 other species, and not met with in the chrysalis figured by Burmeister. This 

 clirysiilis is shorter and thicker than that of antaeus ; the tongue-case is longer and 

 evenly curved, while in antaeus it is nearly straight before the clubbed end ; the 

 rings are high and extend to the middle carina on the underside, while in the 

 pupae of Cocytius the underside has no rings, they extend also closer to tlu^ end 

 (if the free fongne-case, and each ring is laterally (as well as dorsally and ventrally) 

 interrupted. The rough patch behind the thoracical stigma is indicated, but there 

 are no rough patches either on the metanotnm or on the abdomen. The cremaster 

 is broad, rounded, terminating in two subapical and two apical points. 



The larva and chrysalis figured by Merian, Ins. Surin. t. 28, belong possibly to 

 this species ; the chrysalis is certainly not that of duponchel, and it is uiuch too short 

 for antaeus, though it has, like antaeus, the tongue-case subapically straightened. 



The larva figured by Burmeister agrees with that of Merian t. 38 in having 

 dark green lateral bands besides the posterior white band which ends at the base 

 of the horn. It lives on Jatropha. The excrements are small. 



