98 - [Oct.-.h.r, 



fragifera from the Eoyal Botanic Society's Gardens ; and on Averrlioa 

 caramhola and Spathopliyllum hlandum from the Royal Gardens, Kew ; ' 

 all in February. 



Leoanium ftjscum 



Eeaumur, Mem., iv, pi. v, fig. 2 (1740). 



Chermes quercus rotundus fusctis, Geoffr., Hist. Ins., i, p. 507, 11 (1764). 



Chermes quercus {nee Linn.), Fourcroy, Entom. Paris, i, p. 229, 11 (1785). 



Coccus fuscus, Grael., Syst. Nat., IStli ed., p. 2221, 33 (1788). 



Nee Lecanimn fuscus, Sign., Ess. Cochin., p. 250. 



$ form spheroid (diam. 6 mm.) or oblate-spheroid, the transverse diameter 



(7 mm.) being greater than the longitudinal (6 mm.), height in either case 5 mm; 



(the excised part of attachment subtracting from the sphere), constricted as if by a 



ligature close above the part of adhesion to the branch, but leaving a compai'atively 

 small orifice for attachment, more or less round according 

 to tlie exigencies of its position on the shoot ; pale yellow" 

 brown, witli an undefined yellowisli band down the 

 middle, the colour spreading out on each side of it in 

 several small angles (eventually the colour of the scale is 

 wholly light fuscous-brown) ; surface smooth, with a very 

 few distant punctures somewhat in rows, and around the 

 basal circumference many larger and deeper; the posterior 

 cleft short, the superior opening in it small, obovate ; anal 

 point very small. Antennae short, of six joints — let short, 

 2nd more than twice as long, 3rd nearly twice as long as 

 2nd, 4th shorter than 2nd, 5th still shorter, 6th shortest of 

 all with a few hairs attached. Larvae yellowish, short 

 broad-oval, antennce of six joints. 

 No male scale seen. 



Eeaumur (J,, c.) says — 

 " Fig. 2 est celle d'une petite branche d'un chene ordinaire a laquelle tient une 

 G-allinsecte plus grosse que le Kermes et qui est presque spherique." 



This figure exactly represents the scale I have before me, evea' 

 the median yellow band with jagged sides being indicated. 



Geoffrey (7. c) refers to Eeaumur's figure, does not name his 

 species, uses only the four words quoted above, and adds, "II ne paroit 

 pas differer de celui de I'orme." But the resemblance to that species 

 (Lecanium uhni, Linn.) is remote, and this is confirmed by the oppor- 

 tune arrival on July 4th of some scales of L. ul/ni just gathered from 

 wycb elm {TJhnus montana) at Alford, Lincolnshire, by Mr. James- 

 Eardley Mason, which quite corroborate my opinion, they being of 

 less regular form, not so uniformly smooth, of a deep chestnut or 

 piceous-brown colour, and with a large basal opening for attachment 

 to the branch. 



