Ochsenheimer's Genera uf the Lepidoptera of Europe. 189 



vet so passing into one another, that he did not think fit 

 to divide them into separate genera. He accordingly 

 merely marked the several groups, by the imaginary fa- 

 mily lines, A, B, and C, without assigning other names to 

 any of them than the general one, Gastropacha, which 

 he adopted in consequence of a pretty universally pre- 

 vailing 



than the head. Antenna simple in both sexes, ciliated beneath in the 

 males : the basal joint robust, elongate, with a dense hairy tuft : head 

 with a dense fascicle of hairs between the antennae : thorax not crested: 

 abdomen pilose, slender in the males, with a tuft at the apex; more 

 robust in the females, the tip rather conical : ivings slightly deflexed, 

 more or less elongate, rounded posteriorly, diaphanous, pilose : legs 

 rather slender, naked, the two posterior joints with spurs at the tip. 

 Larva exposed, hairy: pttpa obtuse." — Steph. I. c. II. p. 83. 

 Kudaria is distinguished " from the rest of the Arctiidse (except Ht/per- 

 compa) by the length of its maxillae, which considerably exceeds that 

 of the head." — Steph. I. c. 

 3. Genus Heterogenea, Knoch. The only species which Stephens re- 

 cords under this genus is asellus, (Hepialus asellus, Fab.) — It is not in- 

 cluded by Ochsenheimer with his HepiaU, nor can I find it intro- 

 duced by him, any where else. 

 " Heterogenea, Knoch. 

 " Palpi minute, densely clothed \vith scales, triarticulate, the second joint 

 longest, the last minute : maxillee wanting. AntenncB of the female 

 simple, slightly pubescent at the tip, with a small tuft of hairs at the 

 end : head slightly hairy : thorax and abdomen scaly : wings opaque, 

 scaly : anterior subtriangular, acute ; posterior suborbiculate : legs rather 

 slender ; posterior tibia short, robust, with rather long spurs at the 

 apex. Larva ovate, without legs, naked, depressed : 2}upa folliculated. 

 Differs from Limacodes by the form of the anterior wings, which are 

 trigonate, and somewhat truncated posteriorly." — Steph. I. c. p. 84. 

 4 .Genus Limacodes, Latreille. This is the last of the Arctiidae ; and the 

 species, testudo, the only one which Stephens places in it, is also a 

 • Hepialus of Fabricius, and like the last, not noticed by Ochsenheimer. 

 " Limacodes, Latr. 

 " Pa/pi short, a little ascending, densely clothed with scales and short hairs, 

 triarticulate, basal joint short, second as long as the other two, robust, 

 subcylindric, terminal, the length of the first, slender, subfusiforin, 

 slightly acute : maxilla obsolete. AntemuE simple, of the male stout, 

 compressed, rather seri'ated, pilose at the apex, of the female slender, 

 a little serrated towards the apex, which is acute : head moderate, very 

 hairy : thorax stout : abdomen slightly robust, a little tufted in both 

 sexes at the apex, rather stoutest in the female : wings opaque, de- 

 flexed : anterior elongate, subtrigonate, posterior margins rounded : 

 legs very stout, short ; femora and tibia with a broad fringe of hairs ; 

 anterior tibia: simple, four posterior with spurs at the apex. J^arva 

 very stout, naked, I imaciform, gibbous above, flat beneath, apodous: 

 pupa robust, obtuse, posteriorly acute ; inclosed in a dense ovate folli- 

 culus. — Limacodes differs from Heterogenea at first sight by the stout- 

 ness of its thorax and abdomen, the elongation and rotundity of its an- 

 terior wings, and the robustness of its antennae ; the proportions and 

 comparative bulk of the palpi, and other less evident characters." — 

 Slrpk. I. c. p. 8.'). 



."). Genus 



