In the seventh Plate of British Entomology was figured 

 Odonestis Pini *, which was referred to that Genus from its 

 characters agreeing better with the type O. imtatoria than 

 with Gastropacha quercifolia ; and I think it will be admitted 

 that I have not erred in so doing, when the characters laid 

 dowTi in the generic description are carefully examined : the 

 recurvate antennae, equally bipectinated in both sexes ; the 

 distinct maxillae ; the palpi densely covered with short hairs, 

 the last joint (in that state) appearing broad and flat, and the 

 indented wings, are amongst the most prominent features of 

 distinction. The Caterpillars are certainly analogous ; but 

 the curious appendages which give them the appearance, when 

 at rest, of having twenty feet, form a singular and important 

 distinction. 



Gastropacha, which in the Greek means thick bodies, was 

 estabhshed by Ochsenheimer, who has confounded a number 

 of genera under this name, from his inability, as he states, to 

 disunite them, although he at the same time acknowledges 

 that they have distinguishing characters. Its specific name it 

 has received from the strong resemblance it bears, when at 

 rest, to dried oak-leaves. It is one of our largest and (when 

 ahve) most beautiful insects : the Caterpillars, which are still 

 more beautiful, vary from gray to chesnut, having across their 

 necks two fine velvety blue bands : they are full grown about 

 the end of May, and feed upon Grasses, the Pear, white and 

 black Thorn, Willow, &c. I have several times found them 

 upon the Sloe, and in Suffolk took three upon the Salix 

 sketched in the Plate: all of which produced males the begin- 

 ning of July, one of which is represented with its larva. 



• By an error in folio 7 it is printed Odenesis ; and it was omitted to be ob- 

 served that the head and antennas (figures 1 and 2) are those of 0. Pini, the palpi 

 .only being taken from a female of 0, potatoria. 



