532 MR. A. G@. BUTLER ON THE SPHINGIDZ. 
Genus 9. Periconta (Herrich-Schaffer), Walker. 
Perigonia (Herrich-Schiffer), Walker, Lep. Het. viii. p. 100. gen. 5 (1856). 
1. PERIGONIA GLAUCESCENS. 
Perigonia glaucescens, Walker, Lep. Het. viii. p. 103. no. 5 (1856). 
Haiti (Tweedie). - Type, B.M. 
_Somewhat similar to Macroglossa tantalus. . 
2. PERIGONIA DIVISA. 
Perigonia divisa, Grote, Lye. Nat. Hist. New York, vol. viii. p. 199 (1867). 
Cuba (Gundlach and Poey). 
3. PERIGONIA RESTITUTA. 
Panacra restituta, Walker, Lep. Het. Suppl. i. p. 82 (1864). 
Perigonia lusca (part.), Walker, Lep. Het. viii. p. 101. no. 1 (1856). 
Mexico (Hartweg); Venezuela (Dyson); Para (Smith). Type, B.M. 
In the ‘Supplement’ Mr. Walker retained the name of P. lusca for this species, re- 
naming the typical form P. interrupta. 
4. PERIGONIA ILUS. 
Perigonia ilus, Boisduyal, Lép. Guat. p. 66 (1870). 
‘Honduras and Mexico” (Boisduval) ; ? B.M. 
I should hardly call the primaries of Perigonia “ sinueuses;” they are rather waved, 
but only slightly so. The present species may, I think, be a variety of P./usca; I must 
confess my inability to discover its resemblance to Thyreus abbotii; it would even have 
been better to have compared it with Lophura continua. 
5. PERIGONIA LUSCA. 
Sphinx lusca, Fabricius, Sp. Ins. iii. p. 140. no. 5 (1781). 
Perigonia lusca (part.), Walker, Lep. Het. viii. p. 101. no. 1 (1856). 
Perigonia interrupta, Walker, Lep. Het. Suppl. i. p. 29 (1864). 
Guatemala (Sallé); Haiti (Tweedie); Mexico (Argent). Type, B.M. 
There can be no doubt about the identtfication of this species; for Fabricius says, 
‘* Posticee supra atree, fascia magna fulva, que tamen marginem tenuiorem haud attingit. 
Angulus ani cinereus, litura fulva. Habitat in Americe meridionalis insulis.”! 
6. PERIGONIA LEFEBVREI. 
Macroglossa lefebvrei, Herrich-Schiaffer, Corr.-Blatt, 1863, p. 147. 
Perigonia lefebvrei, id. Corr.-Blatt, 1865, p. 56. 
Cuba (Poey). 
Smaller than the preceding, with no orange spot at anal angle. 
1 The italics are mine 
