1 () 14] The Ottawa Naturalist. 13 5 



Explanation of Plates. 



Plate XIII. Right fore-limb of carnivorous dinosaur; one- 

 eighth the natural size. 



Plate XIV. Fig. 1. Natural cast of integument of Pro- 

 torosaurus belli shewing large, polygonal, plate-like 

 scales; natural size. 

 Fig. 2. Cast of large scale with a rounded outline; natural 



size. 

 Fig. 3. Cast of large scale probably polygonal in outline; 



natural size. 

 Fig. 4. Cast shewing transition from small tubercle-like 



scales to larger polygonal ones; natural size. 

 Fig. 5. Cast of polygonal scales; natural size. 

 Fig. 6. Mould of the same; natural size. 

 Plate XV. Natural mould of integument of Trachodon mar- 



ginatus from the side of the body; natural size. 

 Plate XVI. Natural mould of integument of the same in- 

 dividual from the side of the tail ; natural size. 

 Plate XVII. Skin impression (mould) of trachodon from the 

 Edmonton formation; natural size. 



MEETING OF THE ENTOMOLOGICAL BRANCH. 



Held at the home of Mr. Arthur Gibson, January 8th, 1913 - 

 Present: Rev. Dr. Fyles, W. H. Harrington, J. M. Swaine, 

 V. Kitto, Bro. Germain, Bro. Martial, G. Beaulieu, N. Criddle, 

 A. Halkett, F. W. L. Sladen, J. W. Baldwin, J. I. Beaulne, J. R. 

 Fryer, E. H. Strickland and A. Gibson. 



Dr. Fyles gave a charming account of his first visit to Gomin 

 Swamp (near Quebec City), over fifty years ago, in searchlof the 

 interesting butterfly CEneis jutta, a swamp-loving species. He 

 also described the life-historv of the insect. In a small case 

 specimens of the adults were exhibited as well as specimens of 

 CEneis macounii and O. katahdin. This latter is given varietal 

 rank in Dyar's List of N. A. Lepidoptera. Attention was called 

 to the large number of, forms placed in this list under noma. 

 Mr. Gibson spoke of his first experience with 0. jutta at the Mer 

 Bleue, near Ottawa, mentioning the habit of the butterfly of 

 resting on dead* branches and trunks of trees, where it is protected 

 considerably owing to the resemblance of the under side of its 

 wings to the bark. 



By holding plates XV. XVI and XVII upside down the concave 

 surfaces appear convex, giving a vivid representation of the scale pattern 

 as it was in the living animal. 



