H0MCE0S01MA NTMBELLA. 221 



August, 1870. (William Buckler, August, 1870; 

 Note Book II, 59.) 



On the 16th of August, 1887, I found larva3 of 

 Homonosoma nimbella feeding commonly in wild 

 chamomile flowers on the rocks near Douglas, Isle 

 of Man ; and on the 27th of the same month I 

 described them as follows : 



Length about one-third of an inch, obese in pro- 

 portion ; the head is small, and together with the 

 frontal plate is highly polished ; it has the lobes 

 rounded, and is considerably narrower than the second 

 segment; the body is cylindrical, almost uniform in 

 width, tapering a very little at the extremities. 



The ground colour is yellowish-green, varying in 

 -depth of shade in different specimens ; the head is 

 dark brown, but darkest on the upper part of the 

 lobes ; the frontlet is yellower brown, with distinct in- 

 tensely black border behind. The markings are all 

 purple, and conspicuously defined; the medio-dorsal 

 stripe appears rather irregular in outline, caused by 

 slight interruptions made by the segmental divisions, 

 and by a slight transverse depression on each segment ; 

 subdorsally is a pretty series of large round marks, 

 one on each segment, the centre of each in some 

 specimens being of tbe pale ground colour, and so 

 forming a ring-like mark, though in other specimens 

 the " ring ' appears to be almost filled up; below 

 these, along the spiracular region, are other marks, 

 usually three on each segment, one situate over two 

 •others, so that if extended to each other they would 

 form a triangle. The ventral surface and prolegs are 

 very pale green, the anterior legs black and glossy. 



The first imago appeared on the 24th of June, 

 1888, following. (George T. Porritt, 11th March, 

 1889; E.M.M., April, 1889, XXV, 245.) 



It was evidently from moths bred from this chamo- 

 mile-feeding form of the larva that Mr. Howard 

 Vaughan described a supposed new species under the 

 name of Homoeosoma saxicola. — G. T. P. 



