144 HAUSTELLATA. LEPIDOPTERA. 



Blue-black : head with a slender silvery line before the eyes : palpi totally black : 

 thorax glossy, immaculate : breast with a fulvous patch anteriorly : abdomen 

 shining, with the fourth segment above bright fulvous-orange, interrupted 

 by a broad dusky-black line beneath ; caudal tuft immaciilate : femora blue- 

 black ; tibiae the same, the anterior yellowish within ; the spines black ; tarsi 

 blue-black above, yellowish beneath: anterior wings above, with the base, 

 costa, nervures, a broad transverse line, and the apex, deep bluish-black; 

 beneath, with the costa at the base, the margins of the discoidal Une, and the 

 space between the nervures at the apex (which are very broad, and dusky- 

 blue) bright golden-fulvous; posterior, with the nervures, margin, and anterior 

 lunule bluish-black ; beneath the same, with the costa slightly margined with 

 fulvous. 



This interesting species has been hitherto unnoticed as a British 

 insect, unless by the accidental employment of its name in the 

 Entomological Transactions for the foregoing, which it resembles 

 in size alone ; its other characters, as may be readily seen, both by 

 the accompanying figures and description, being essentially distinct. 

 Upon a re-examination of my series of ^gerise I was fortunate 

 enough to detect amongst them a single specimen, in beautiful 

 condition, of ^g. Stomoxyformis, which I had formerly confounded 

 with -35g. Culiciformis ; though I am, from that circumstance, un- 

 certain of its locality, which I presume to have been Darenth, as I am 

 told by Mr. Chant, that he possesses a pair which he caught in that 

 wood on the 10th July, 1825; and Mr. Davis informs me that he 

 has a specimen which he found at Gravesend : but I have not yet 

 seen either of their specimens. 



Sp. 10. Formiciformis. Plate 11. f. 4. Alls hyalinis, anticis marginibus 

 fasciaque nigris, apicefulvo, ahdomine nigro, cingiilofiilvo, barba abdominis 

 lateribus albidis. (Exp. alar. 8 — 10^ lin.) 



Sp. Formiciformis. Villars. — iEg. Formiciformis. Steph. Catal. 



Blue-black : head with silvery line before the eyes : palpi above black, beneath 

 fulvous, antennse black: thorax and breast shining, immaculate; abdomen 

 glossy, the fourth segment entirely bright fulvous, the following with a few 

 fulvous scales; the caudal tuft blue-black, with a narrow longitudinal white 

 streak on each side : thighs blue-black ; tibiae yellowish, with a black ring, and 

 yellowish white spines ; tarsi blue-black, with a few yellowish hairs internally : 

 anterior wings with the tip bright fulvous ; the upper surface, with the ner- 

 vures, margin, and a narrow transverse line, black; the costa fulvous at the base ; 

 beneath, with the anterior and inner margin, also fulvous ; posterior on both 

 sides, with the nervures, margins, and minute costal lunule, black : cilia of all 

 the wings violet-black. Male less, the antennae ciliated; the second and third 

 segments of the abdomen with a few yellow scales, the fourth and fifth fulvous, 

 with a black dorsal line. 



