112 HAUSTELLATA. — LEPIDOPTERA. 



head small, pilose ; thorax not very stout, clothed with loose hair-Uke scales, 

 subcrested: wings horizontal, entire; the anterior elongate, subtrigonate, 

 narrowed at the base, with the shoulder a little rounded ; posterior orbiculate- 

 triangular, slightly excised towards the costa : body slender, tufted at the apex 

 in the males: legs short, robust. Caterpillar subterranean: pupa short, 

 spinose at the apex, subterranean. 



The deeply bipectinated antennae of the males, and ciliated ones 

 of the females, with the slenderness of their bodies, and the rotundity 

 at the shoulder of their broad anterior wings, distinguish this genus 

 from the cognate genera, exclusively of the diflference in the posi- 

 tion, form, slenderness and proportions of the palpi. 



Sp. 1. ferruginea. Thorace alisque grisco-ferrugineis, anticis strigis quatuor 

 denticulatis, maculisgue costalibus aliquot pallidis. (Exp. alar. 1 unc. 6 — 8 

 lin.) 



Bo. ferruginea. Esper.—KM. ferruginea. Steph. Catal. pt. ii. p. 64. No. 6080. 



Head and thorax rusty-griseous : anterior wings the same, with two obscure 

 dusky spots at the base ; a sUghtly denticulated transverse striga near the an- 

 terior stigma, and another much bent towards the costa behind the posterior one, 

 with a broader one between the stigmata, which are very obscure, and a similar 

 but considerably undulated one near the hinder margin, bordered exteriorly 

 with grayish ; the costa, at the origin of the first, third, and fourth striga, is 

 pale griseous-ash, and between the latter bears three distinct pale spots : the 

 posterior wings fuscescent, with an interrupted dusky streak on the hinder 

 margin. Female somewhat darker, with the dentic\Uated strigae more obscure, 

 and the abdomen stouter. 



Caterpillar dusky-brown, with the head paler, with a yellowish dorsal and pale 

 lateral lines ; the latter with a few black spots : pupa rufous : the imago ap- 

 pears towards the end of June. 



I am not aware of any other locality for this obscure but re- 

 markable insect, than the hedges in the vicinity of Darenth-wood, 

 where I have twice captured it. 



Genus XCI. — Agrotis, Hubner. 



Palpi ascending, stout, the basal joints thickly clothed with long scales, the ter- 

 minal distinct, slightly squamous; triarticidate, the two basal joints of equal 

 length, the first curved, and the second slightly attenuated; the terminal 

 small, subovate, obliquely truncate : waxiY/o? elongate. <> Antennw hv^eciin&ieA. 

 at the base and setose at the apex in the males, simple and pubescent beneath 

 in the females : head small, thickly clothed with scales : thorax densely squa- 

 mous, not crested : wings horizontal during repose ; anterior elongate, with 

 the hinder margin entire; posterior broad, not denticulated. Larva sub- 

 terranean, naked, radicivorous: pupa subterranean. 



