140 HALSTIILLATA. I.FPIDOPTERA. 



+ Sp. 2. Spheciformis. Plate 11. f. 1. Alis hyalinis, anticarum marginibus 

 fasci'(que nigro-violaceis, abdomine nigra, cingulu albido, antennis ante apicem 

 Jlavescentibus. (Exp. alar. 1 uiic.) 



Sp. Spheciformis. Villars. — Mg. Spheciformis. Steph. Catal. 



Blue-black : palpi above black, beneath yellow ; tip dusky : antennse bluish- 

 black, with a yellomsh space near the apex : thorax with a lateral and longi- 

 tudinal yellow line: abdomen glossy; above with a basal spot and the apex 

 of the third segment whitish-yellow, beneath with a basal spot and the margin 

 of the fifth segment yellow : caudal tuft bluish-black : femora blue-black, 

 with the anterior yellow outwardly at the base : tibise with luteous spines ; 

 the hinder internally yellowish : the tarsi yellowish spotted with black : an- 

 terior wings above with the nervures, apex, margin, and a transverse discoidal 

 line blue-black ; beneath with the margin yellowish, and a yellow spot on the 

 outer edge of the transverse band ; posterior with the nervures, hinder margin, 

 and anterior discoidal lunule blue-black; beneath with the nervures fulvous: 

 fringe rosy-brown. Male with the antenns slightly serrate. 



Larva said by Oehlmann to feed on the birch (Betula alba.) 



Decidedly a rare insect, of which I have seen five indigenous 

 specimens only: tlie first was caught very many years ago, and is 

 in the collection of Mr. Latham ; afterwards two (a pair) were 

 found in the woods of Southgate, and are, respectively, one in the 

 British Museum, the other in Mr, Vigors's cabinet. Mr. Ingpen 

 has also a specimen, which was taken in a wood to the north of 

 London ; and the fifth was taken in the Isle of Wight, by Mr. 

 Weaver, in July, 1826, and is in Mr. Stone's cabinet. 



Sp. 3. Ichneumoniformis. Alis hyalinis, anticarum marginibus Juscidque extus 

 croced fuscis, abdomine nigra, segineniis viarginejlavis, antennis ante apicem 

 fascia Jlavd. (Exp. alar. 10 — 11 lin.) 



Se. Ichneumoniformis. Fubricius. — ..-Eg. Ichneumoniformis. Curtis, ii. pi. 53. 

 — Steph. Catal. 



Brownish-black : palpi orange, with some dusky scales on the sides : head with 

 its hinder margin, the clypeus, a spot at the base of the wings, a lateral line 

 on the thorax, five or six nearly equidistant bands on the abdomen, a streak 

 at its base, and the centre and sides of the caudal tuft, yellow : legs tawny 

 yellow : the femora black, with a yellow line on the anterior : the base of the 

 tibia, and a spot towards the apex, black : antennae above with the base and 

 apex dusky; the centre ochraceous, beneath ferruginous: anterior wings, with 

 the costa, discoidal spot internally, hinder margin, and fringe, tawny-brown; 

 outer edge of discoidal spot, apex, and inner margin of the wings, orange ; 

 posterior wings with four nervures and the hinder margin tawny-brown ; the 

 remaining ner%'ures and a minute triangular spot on the anterior margin 

 orange. Male with the body more slender; the antennae slightly ciliated, and 

 nearly all blue-black ; (he abdomen sometimes with seven rings. 



