80 MONOGRAPHIA ^GERIARUM ANGLI.E. 



nigris : femora nigra : tibia? nigrce : tarsi fulvi, apicibus nigri- 

 cantibus : alae anticae venis marginibus fasciaque transversa 

 nigris, ciliis omnibus fuscis. 

 Habitat in Anglia rarissime. 



The only British specimen of this insect that I have ever 

 seen or heard of, was taken at Greenhithe, by Mr. Chant, and 

 is now in that gentleman's cabinet: from this specimen, the 

 above description was taken by Mr. Chant's kind permission. 

 I am unable to find, in any work, a figure or description that 

 will agree with it. The Scoliceforims of Borkhausen, de- 

 scribed and figured in his Naturg. Euroj). Sc/wiet.,'^ and also 

 by Laspeyres, in his Sesice Europece^ more nearly approaches 

 it than any species with which I am acquainted ; but there are 

 still such decided diiferences, that I cannot venture to assign 

 it that name. ScoUceformis has the upper half of the antennae 

 of a pure white : in our insect they are black throughout. The 

 thorax of ScoUceformis has a yellow line on each side : this 

 is wanting in the insect before us. Again, ScoUceformis has 

 two yellow belts instead of one, and the beard of its abdo- 

 men is externally yellow instead of black. Now as only 

 females of ScoUceformis have yet been taken, and as Mr. 

 Chant's insect is a male, it is possible that they may be the 

 sexes of the same species ; but the differences are too great 

 to conclude that they are so, without some more sufficient 

 evidence. 



Sp. 4. Troch. Sphegiforme. Antennce ante apicem albican- 

 tes, abdomen nigrum cingulo albido. 



Sphegiformis. W. V. 305. 10. 



Id. Fab. T. III. 383. n. 15. 



Spheciformis. Boric. Hub. Esper. hasp. Haw. 



Id. Steph. III. (Haust.) Vol. I. 140. Tab. XI. Fig. 1 . 



Palpi supra nigri, subtus fiavi, apice nigricantes : antennas coeruleo- 

 nigrse, superne ante apicem albicantes : thorax cceruleo-niger, 



1 Sphinx ScoUaformis. Alls fenestratis, anticis in medio macula magna rotunda 

 nigro-cyanea : abdomine fulvo barbato : antennii a medio usque ad apicem albis. 

 Borkhausen. Nat. Eur. Schmet., T. II. p. 173. n. 13. b. Vid. Tab. Fig. 2 et 3, 

 fern. 



' Sesia Scoliaformis. Sesia alls hyalinis, anticarum marginibus maculaque nigris : 

 abdomine barbato nigro, cingulo flavo, barba crocea : antennis apice albis. Laspeyres. 

 Sesia Europece, N. VI. p. 13. Vid. Tab. Fig. 1 et 2. /<■/«. 



