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26 BRITISH MOTHS 
SPECIES 1.—SESIA FUCIFORMIS. THE BROAD-BORDERED BEE HAWK-MOTH. 
Plate vi. fig. 7. 
Synonymes.—Sphine fuciformis, Linn. Fn. Su. No. 1092; | Sesia fuciformis, Curtis; Westwood, Entomol. Text Book, pl. 5, 
Haworth; Fabricius ; Hiibner ; Zetterstedt, (MMacroglossa f.), Dono- | fig. 2. 
van 3, pl. 87; Harris, Exposition, pl. 13, f. 2; Duncan, Brit. Moths, Macroglossa Bombyliformis, Ochsenheimer. 
p- 168 *. | Sesia Bombyliformis, Stephens ; Wood, Ind. Ent. t. 4, f. 21. 
Cephanodes Bombyliformis, Hiibner, Verz. bek. Schmett. 

The fore wings in this species measure about 13 inches in expanse. They have a moderately large discoidal 
transparent patch ; the base, fore margin, and broad hind margin greenish-brown ; the hind wings have also a 
rather broad dark margin, the base and anal margin being also dark ; the transparent portion of the wings is 
traversed by the black veins ; and in this species there is a line of dark scales running along the middle of the 
discoidal cell, and imitating a distinct vein. The body is of a yellowish ash-colour, a broad rich chesnut brown 
fascia running across the middle of the abdomen, beyond which, on each side, are two patches of fulvous hairs ; 
and the tail is almost entirely black. The antennz and spiral tongue are black, and the fore legs pale. 
The caterpillar is green, with a yellowish dorsal and lateral line, and occasionally with some reddish spots on 
the sides. The tail is straight, of a dark brown colour, with the tip fulvous. It feeds on the honeysuckle 
and yellow lady’s bed-straw, &c. 
The perfect insect is not very uncommon at the end of May in damp open spaces in woods of the south of 
England ; it does not, however, appear to be found farther north than York. It delights to fly in the sunshine, 
extracting the nectar from the flowers of the hare-bell. 
Entomologists are at variance respecting the identity of this species with the Linnean Sphinx fuciformis, 
Mr. Stephens adopting the opinion of Ochsenheimer that it is not identical therewith. I think, however, that 
the Linnzan description “ abdomen cingulo nigro, barba /Jaterali pone cingulum albida,” sufficiently identi- 
fies it with the Linnzan description Tf. 
Mr. E, Doubleday has shown me a specimen of this insect taken immediately after emerging from the 
chrysalis, in which the transparent portions of the wing are rather closely clothed with broad dark scales, 
which evidently become abraded with the slightest touch. The same circumstance also occurs in the small clear 
winged hawk-moths, as mentioned below. 

SPECIE S2.—SESIA BOMBYLIFORMIS. THE NARROW-BORDERED BEE HAWK-MOTH. 
Plate vi. fig. 4—6. 
Synonymes.— Sphinx Bombyliformis, Esper, Borkhausen, Schrank, Macroglossa Bombyliformis, Zetterstedt. 
Haworth. Macroglossa fuciformis, Ochsenheimer. 
Sesia Bombyliformis, Fabricius; Curtis, Brit. Ent. 1, pl. 40; Sesia fuciformis, Stephens ; Wood, Ind. Ent. t. 4, f. 22. 
Duncan, Brit. Moths, p. 170. Cephanodes fuciformis, Hiibner, Verz. bek. Schm. 
The fore wings in this species are broader, and not so much attenuated at the tip as in the preceding species ; 
their expansion is consequently somewhat less. They are further distinguished by the very narrow dark margin 


* The figures of this and the next species are confused in plate 12 of this work. Although both are bad, fig. 4 is certainly intended for the 
broad-bordered species, and fig. 3 for the narrow-bordered bee hawk-moth, although lettered otherwise. 
T Since the above was written, I have inspected the Linnan Cabinet, and find my conjectures confirmed, a specimen of the broad-bordered 
bee hawk-moth, pinned with a genuine round-headed Linnean pin, being attached to the label inscribed fuciformis, by Linnzus himself. A 
specimen of the narrow-bordered species is however placed by its side, but it is pinned with a different kind of pin. 

