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IV. Notes on Heterogynis canalensis, n. sp. By Dr. 

 Thomas Algernon Chapman, M.D. 



[Read February 3rcl, 1904.] 



Plates XI, XII, XIII, and XIV. 



At the end of June and beginning of July last year (1903) 

 Mr. Champion and I met with a species of Heterogynis, 

 at Canales de la Sierra, which we took at first for Hetero- 

 gynis paradoxa^ but which is really very close to H. pcnella, 

 and has fewer points in common with H. paradoxa than 

 with H. fenellii. 



It was attached to Genista scorjnus, a plant that looked, 

 to my eyes, very much the same as the common Galycotomc 

 of the Riviera, whenever at any rate it was allowed to grow 

 at all freely ; usually, however, it was so browsed down by 

 goats, sheep, and other animals, that it took the form of 

 little rounded bushes a foot or two high, that were little 

 better than very solid bundles of thorns. The grazing 

 must be done entirely during the growing season, when 

 some of the shoots that protrude are soft and succulent. I 

 regarded as a most ungrateful task, the getting a portion 

 of this plant and carrying it home for the food of larvae. 



There were several other Genistas at Canales, chiefly a 

 tall handsome species, which I do not think was Genista 

 fiorida, but was certainly in habit and general appearance 

 very like it. Another, which I took to be G. scoparius, was 

 also common. 



I think I got one odd larva of Heterogynis from the G. 

 scoparius, but, with this exception, not a specimen was found 

 on anything but the G. scorpius. This close attachment 

 to one plant was one of the items that made me at first 

 think I had H. paradoxa. My experience of H. paradoxa 

 is that it will eat nothing but broom, and as a rule only 

 one species of broom in each locality. H. penella on the 

 other hand will eat almost any leguminous plant, and even 

 a good many others. 



We met with various "brooms" at different parts of 

 our excursion, and I searched this Florida-like species 



TRANS. ENT. SOC. LOND. 1904. — PART L ( APRIL) 



