( 54 ) 



Tiipa known of tlireo species : 



(I. Tongue-case spirally mlleil up . . . ('. cbii'iiliiix. 



Toiijrne-cuse Udt. spirally rolled ii)) . . . . b. 



b. Abdomen without patch of tubercles ujion 



segments ...... C. (/iijionclirl. 



Abilomen with a ronj;h jiatch (if tubercles 



upon the Nth segment .... (_'. aiitdi'iis. 



:'>!. Cocytius cluentius. 



Merian, Ins. Surinam, t. 3 (1703) (larva, pupa). 



Sji}ihi.r rimiiliux Cramer, Pup. ICi: i. p. V>i. t. 7S. f. ii (1775) (Ind. occ.) ; id., I.e. ii. p. 4.S. t. V26. 

 f. .\ (1777) (Surinam) : Goezc, Enl. liei/tr. iii. 1. p. -219. n. 53 (1779). 



Phlegttlmilius clKiiiliit.i, Hiibner, Vn-z. bel.: Scliiii. p. 140. n. 1500 (1822). 



Amjihitni/.r cltifntinn^ Pocy, Cnit. Lrji. p. 4 (1832) ; Muuetr., Kuuni. Corp. Auiin. Mit.'i. Pi'lr., Lrp. 

 p. iio. n. 148K (l,sr,7) (Haiti) ; Orote & Rob., Proc. Enl. Sue. Phllad. v. p. G7 (1805) : id., /.-■. 

 vi. p. 3-iy (18iWi); Boisd., Sppr. Ul-n. Lip. HH. i. p. 62. r. 1 (1875) (Cayenne; Antilles: 

 tU. fahii) ; Moschl., Vvrli. Zonl. linl. Ges. Wien x.wi. p. 345 (1870) (Surinam) ; Dew., Millh. 

 .Miimh. Enl. Vcr. i. p. 92 (1877) (Porto Rico) ; Bull., Trans. Ziml. Soe. Lmiil. ix. p. 0:J0. n. 

 (IK77) (Brazil; R. Janeiro ; Haiti) ; Burm., Desrr. Itip. Arg. v. p. 31G (1878) (p.artim: caterp. 

 that of /". ((/4(>*r(/(j) ; Bull., Pror. Ziml. Sue. Lmiil. p. 483. n. 50 (1878) (Jamaica); Gundl., 

 Conlr. Enl. Cuhiimi p. 205 (1881) (Cuba) ; Druoe, Biolog. Cenlr. Amer., Lep. Het. i. p. 18. n. 4 

 (1881) (Chiriqui) ; Edw., P,qnli„ iv. p. 12 (1884) (Vera Cruz) ; Pitt. & Bioll., Lfp. Hit. Cvsia 

 Jiicti p. 11 (1897). 



Macrosilu cluentius, Walker, List Lip. Ins. B. M. viii. p. 200. n. 3 (1850) (Brazil ; Rio de Janeiro ; 

 St. Domingo ; Surinam) ; Herr.-Sch., Corresp. BI. p. 59 (18G5) (Cuba). 



Cocytius cluentius, Kirby, Cat. Lep. Ilet. i. p. 087. n. 10 (1892) (S. Amer. ; Antilles) ; Rothsch., 

 Nov. ZooL. i. p. 541 (1894) (Area) ; Bonningh., Iris xii. p. 114. n. 13 (1899) (Rio de Janeiro). 



<S ?. The pattern of the forewiiig reminds one of Dilojihonota ; cellules R^ — M- 

 almost normally scaled, the multideutate scales being dense also near cell ; the 

 disc of the hindwing has no transparent spaces, the modification of the scales 

 to hairs not being comjileted on either side; the scales of the upjierside much 

 uarriiwer than those of the underside. Legs slenderer than in the other species 

 of Coci/tius. Scaling of pronotum prolonged to two tufts or crests ; mesial tufts of 

 abdomen seldom distinct, represented by vestigial short cariuae. Base of hiudwing 

 black ; yellow snbbasal area comjdetcly sei)arated into three patches. 



6. Foretibia as long as, midtibia about 1 mm., and hindtibia about 2 mm. 

 longer than, the resjiective first tarsal segment. Foretarsus with comb on segments 

 3 to •■), segments 1 and 2 with one internal row of spines, which is more or less 

 incomplete ; the e.\ternal row of segment 2 is irregular, the apical spine prolonged ; 

 the other segments have very few spines, mostly apical, representing rows 1,2,4, 

 first segment nearly twice as long as the second, segments 2 to 5 together half as 

 long again as the first, ('lasjjer comparatively small for a species of this genus; 

 harpe with a flat, rather short, obliquely rounded, process (PI. XXXVII. f. 8), which 

 is densely hairy at upper ajiical margin and bears on the e.xternal side (towards the 

 clasper) a series of sharp, recurved, marginal teeth (PI. XXXVII. f. 0) ; above 

 the base of the harjjc there is a strongly chitinised fold which is clothed with long 

 and more or less horizontal bristles. The penis-funnel is prolonged (PI. XXXVII. 

 f. 8), somewhat bone-shaped in a lateral view, dilated and truncate at end, ventrally 

 open, this ojiening elongate lyrc-slia]ied ; the penis-sheath is very slender and 

 ajiically produced into an obtuse flat lobe which ajijiears pointed in a side-view, 

 and is gently curved : no teeth. Tenth tergite (PI. XXVII. f. 35) comparatively 



