extend considerably beyond the extremity of the body. 

 The head terminates in front in a small coniod point, 

 the dorsal portion of the segments of the abdomen is 

 armed with numbers of minute horny points or 

 little reflexed teeth, and the extremity of the body is 

 truncate, and also armed with several minute points. 

 When about assuming the perfect state, the chrysalis 

 thrusts itself half out of its silken cradle (as represented 

 in our figure), the little hooks on its back forming an 

 excellent anchor. 



The chrysalis 6tate lasts only about a fortnight, and 

 we had the pleasure of obtaining specimens of the 

 perfect insect developed during our stay in Austria, 

 and the fact of the species attacking the Walnut 

 being new to our entomological friends in Vienna, we 

 consider it may be considered interesting to our readers 

 at home. 



The perfect insect is very Blender and delicate in 

 its form, belonging to a genus thence appropriately 

 named Oracilaria by our tutor in entomology, the late 

 Mr. Haworth. Its specific name, rufipennella, has 

 been determined for us by Mr. Stainton, who has 

 performed such excellent service to the science by his 

 unwearied observations on the transformations of the 

 difficult family Tineidse to which the insect belongs. 

 The upper surface of the bead and thorax and the fore 

 wings are of a reddish brown colour, varying in some 

 specimens to a more orange, and in some to a greyer 

 tint. The fore edge is marked with a paler streak alter- 

 nating with a great number (about 20) minute black 

 dots ; there are also two or three longitudinal rows of 

 similar dots, but very irregular in number and distinct- 

 ness, along the disk of the wing as well as on the 

 inner margin ; the long fringe of the inner margin is 

 dark grey, which is the colour of the hind wings and 

 their still longer fringe ; the legs, especially the middle 

 pair, are a good deal mottled with pale grey, black and 

 reddish coloured scales. The tibiae or shanks of the 

 middle legs are clothed with broad flat scales, and 

 when the insect is sitting at rest, with the extremity of 

 the wings resting on the surface on which it is standing, 

 and the head considerably elevated, the middle legs 

 are thrown out nearly at right angles with the body, 

 and the fore-legs are brought into contact with them, 

 and completely hidden by the scales of the middle 

 feet, as represented in our figure. The perfect intect 

 measures two-thirds of an inch in the expanse. 



From the fact of the Walnut tree not having been 

 hitherto observed to be attacked by this insect, and 

 also from the species before us being ordinarily 

 known to infest the Scyamore,* we presume the 



* Frey (in his work on the Swiss Tines, p. 231) says that the 

 species is found in Alpine valleys on Acer Fseudo-platanus, 

 sometimes in prodigious multitudes. 



attack upon the former tree during the present 

 year to be an unusual instance of divergence of habit 

 in the insect, owing to some peculiarity which we 

 have no means of determining, and consequently, in 

 an economical point of view, as not likely to be con- 

 tinuous and therefore permanently injurious to the 

 Walnut tree. J. O. W. 



