4Q BRITISH MOTHS 



SPECIES 7.— TROCHILIUM SPHEGIFORME. 



Plate vii. fie. 5. 



SyxoNVMEs. — Sesia Sphcgiformis, Fabiiciua j Wien Vcrz. ; 

 Viowe;; ; Zctterstetlt (Faun. Lapp. p. 918). 



Trochiliiim Sphegiforme, Newm. 



Sesia Spheciformis, Laspeyrcs ; Borkliausen ; Ocbsenheimer ; Dal- 

 man (Zyg. .Succ. 218. 4). Hiibner, Sph. fig. 77 and 78. Ernst ; 



Esper ; Haworth ; Villais. 



Mgeria Spheciformis, Stepb. Illiist. H. 1, pi. 11, fig. 1. Dun- 

 can, Brit. Motbs, pi. 13, f. 3. Wood, Ind. Ent. t. 4, f. 27. 



Bembecia Spheciformis, Ilubner (Vcrz. bek. Scbm.). 



Sphin^v Ichneiimoniformis, Borkliausen. 



Tlii.s rare species measures an inch in the expansion of its fore wings. The body is of a bUic-black colour ; 

 the palpi are black above and yellow beneatli, with the tip blackish ; tlie antennas are black, with a whitish or 

 yellowish bar on the upper side, near the tip. The thorax has a lateral yellow line ; the breast has also a 

 larce lateral yellow patch. Tlie abdomen has a spot at the base, on the upper side of the hind margin, and the 

 third segment yellow. (Hiibner and Curtis represent the basal spot as forming a transverse bar.) The fan tail is 

 broad and black. Tlie fore wings have the margins and transverse mark and tip blue or brown black ; the tibiae 

 are black, with lutcous spurs, the hind pair yellowish on the inside ; the tarsi yellow dotted with black. The 

 ])orfect insect is found in woods in June and July, and the larva is described by Laspeyres as feeding on the wood 

 of the Bu-ch. It is very rare in this country, a few specimens having been taken in the woods to the north of 

 London. 3Ir. Weaver informs me that he took one flying in the New Forest, which at first sight he thought 

 was a laro-e ichneumon. 



SPECIES 8.— TROCHILIUM ANDREN^FORME. 



Plate vii. fig. 10. 



SvNONYMEs. — Sesia Andrenwformis, Laspeyres, Ses. Europ. p. 20, 

 g. 7, 8. 

 Trocldliutn Allautifnrme, Newman, Ent. Mag. 1, 79. 



Mgeria AUantiformis, Stephens, 111. H. 4, p. 385. Wood, Ind. 

 Ent. pi. 4, f. 21. 



This species measures IO5 lines in the expansion of its fore wings. It is blue black, with the palpi yellow on 

 the under side ; the antennse entirely black ; the thorax black above ; the abdomen black, with the hind margins 

 of the third and fifth segments pale yellow ; the fan tail black, with the middle orange ; the legs black ; the tibiae 

 sprinkled with a few yellowish hairs ; the tarsi fulvous, with the tips blackish ; the fore wings with the veins, 

 margins, and transverse fascia black. 



A male specimen of this species vyas taken by Mr. Chant in a wood near Greenliithe, in July 1829, from 

 which my description was shortly afterwards taken. I mention this because Mr. Newman, whose description 

 was also taken from the same individual (which he states to have been the only British specimen he had ever seen 

 or heard of), describes it as having only one white belt. It is, however, represented by Wood as having two ; 

 thus confirming my note made several years before that work was published. It is on this account that I refer 

 it with scarcely .any doubt to the S. Andrenseformis of Laspeyres. Mr. Newman, however, suggests that this 

 may be the male of the S. Scoliteformis of Borkhausen and Lasjieyres, but that is one of the largest in the genus, 

 differing, moreover, in a number of its characters. 



5Ir. Stephens states that he possesses a much-injured specimen, found near Dover. 



b. Abdomen very slender in the middle in the males, and marked with a single red belt. (Conopia.) 



