( 3a;5 ) 



Ixfl(lii(itliiis are ink'r se more closely related than witli tlie easily reedgiiiseel tiirio, as 

 is shown by the crest of the head and thorax, the colour, ati I tlio sexual armature 

 differing somewhat iu IsoyixitliKS and Pucudos/j/tu/x. 



The yellow-ringed larva with red head, red anal segment, and red legs 

 resembles that of certain Saturniidue. This similarity is the more suggestive as 

 the ol»li(|ue side-bands of the e(iually low-organised Pachi/lia and /V/o^«-s — which 

 run in tlie opposite direction to tiuit of tlie banils of Frotoparce, ILjloicus, S/j/tiiix, 

 etc. — arc also met with among American Sittiinii'ulae. 



2S3. Pseudosphinx tetrio. 



■Merian, Mfdim. Suriu. /«,<. t. 5 (eriica) (1705). 



Sjihiii.r tclrio Linne, Maiit. Pla/it. p. 538 (1771) (Am. nier.) ; MilU., Natms., Suppl. p. HDl. ii. 5. b 

 (1774) ; Fabr., %sA Ent. p. .'i-lO. n. 14 (1775) (partiui) ; Goeze, Ent. Beytr. iii. 2. p. 20:!. ii. i 

 (1780) ; Fabr., Spec. lint. ii. p. 145. u. 27 (1781) (partim) ; id., Maid. In.i. ii. p. 9(5. n. 30 (1787) 

 (partim) ; Gmel., %»;. Xat. i. 5. p. 2375. u. 01 (1790) ; Fabr., Ent. Sijst. iii. 1. p. .^00. n. 32 

 (1793) (partim) ; Burm., A/,!i. Xul. Ces. ffal!,- p. 00 (1854) ( = Iiasdnthal) ; Dew., iu Wieym., 

 Airh. X„hn;/. x\iv. 1. p. 9. t. 1. f. 10. 11 (1878) (larva). 



S/ihiiix pluiii/criae Fabricius, l.l.c.c. 



SphitLc luisdrubal Cramer, Pup. E.cnl. iii. p. 90. t. 240. f. r (1779) (.Suriaam ; Curaijao). 



Hyloicus husdrtihal, Hiibner, Verz. hi: Sriiin. p. 139. n. 1488 (1822). 



f<lihiiij- imlruhul (!), Poey, Cent. Lep. t. 11 (1832) (Cuba ; larva, pupa) ; id., Mem. llixt. Xal. Ciih,,. 

 i. p. 197. n. 10 (1851) (larva). 



■V""-'' rusfiea, Sepp {'nnn Fabricius, 177.0), Suein. Vliml. iii. t. 101 (1852). 



rseudiixjiliiiir tetrio. Uurmeister, Sphiinj. Ihiin. p. G4 (1850) ; Grote, Pro<: Ent. Soc. PhihuL v. p. 04 

 (1805) ; id. & Rob., ibid. p. 101. n. 75 (1805) ; Walk., Lht Lep. Ins. B. M. xxxv. p. 1854 ( ISi'.O) 

 (= hasdrnhal.) ; Butl., Trans. Zvol. Soe. Lond. ix. p. 610. n. 1 (1877) ; Dew., Mitth. Mitm-Ii. 

 Ent. Ver. i. p. 92 (1877) (Porto Rico) ; Burm., Descr. Rep. Argent, v. p. 320. n. 1 (1878) ; id., 

 I.e. Atla>! p. 33. 34. t. 13. f. 3 (/.). 7 (p.) (1879) ; Druce, in Biol. Centr. Anier., Lep. Ilet. i. 

 p. 22. n. 1 (1881) ; Gundl., Conir. Ent. Cuhana p. 203 (1882) ; Edw., Camid. Ent. xx. p. 12 



(1887) (Arizona ; N.W. Texas) ; id., Ent. Amer. iii. p. 164 (1887) (Florida) ; id., I.e. iii. p. 223 



(1888) ; Riley, Ina. Life ii. p. 379 (1890) (at .sea in Gulf of Mexico) ; Kirby, Cat. Lep. Ilet. i. 

 p. 682. n. 1 (1892) ; Rothscb., N(iv. ZooL. i. p. 90 (1894) (= ohscura) ; Druce, I.e. Snppl. p. 316 

 (1896) ; Bouningb., Iris xii. p. 117. D. 22 (1899); Hamps., Ann. Mag. N. H. (7). vii. p. 251 

 (1901) (Bahamas) ; Kaye, Trans. Ent. Soc. Lund. p. 139 (1901) (Trinidad). 



Maernsila Imsdmbal, Walker, L/st Lep. hm. B. M. viii. p. 202. n. (1856) ; Me'nctr., Enum. Corp. 



Aniin. Mus. Petr. ii. p. 89. n. 1468 (1857) ; Clem., Joiirn. Ac. X. tSc. P/iihid. iv. p. 101. u. 53 



(1859) ; id., in Morris, Syn. Lep. N. Am. p. 184. n. 2 (1862). 

 S/diinxr tetrio, Walker, I.e. p. 203 (1856). 

 .Moerosila axdrnhal {\), Lucas, in Sagra, ll\M. Cuba vii. p. 295 (1856); Herr.-Sch., Corresp. HI. 



p. 59 (1865); Boisd., Cohs/W. Lep. Unalemahi p. 72 (1H70) ; Weism., ed. Meld., .S7W. Tluor. 



Dexr. i. p. 264 (1882). 

 .Maeronila tetrio, Boisd. Spec. Gen. Lep. Hit. i. p. 61 (1875) ; Muschl., Verb. Zool. But. Ges. Wien xxvi. 



p. 345 (1876) (Surinam) ; Snell., Tijilschi: Ent. xxx. p. 33 (1887) (Curasao). 

 *Pseudosphin.i: obsenra Butler, I.e. n. 2 (1877) (Honduras ; N. Granada ; Brazil ; Mus. Brit.) ; 



Kirby, /.<•. n. 2 (1892). 

 Protoparee tetrio, Butler, Prue. Zool. Soc. Lond.. p. 484. n. 64 (1878) (Jamaica). 

 Sphin.e {Psendo!^phiiu:) tetrio, Dewitz, Xora Act. Leup. Car. Ac. Nat. xliv. 2. p. 250. t. 1. f. 2. 2a 



(/.juv.)(1882). 



(??. The S is darker than the ? ; both sexes are individually variable in 

 colour and size. Butler's obscttra is based on specimens with an average amount of 

 black-brown on the wings ; there occur individuals which are much darker than 

 the type of ohscai-a. 



S. Tenth segment broad (PI. XLI. f. Ii). 20. 21), sternite and tergite close 

 together, the processes of the former acute, curved at end. Glasper with a great 

 number of friction-scales (PI. LVIU. f. 3(j) ; harpe ending iu a long, obtuse, 

 somewhat spatulate process with entire edges (PI. XLV, f, 19). Penis-sheath 



A A 



