20 BRITISH GALL-INSECTS. 



86. Adelges abiefis, L. 



Produces the ananas-shaped green or pinkish large bud- 

 2:all on Abies communis. 



87. Adelges strobilohiiis, Kalt. (Monographic der Pilanzen- 



lause, i. 203). 

 It is to this species that I -would attribute the smaller 

 yellow or brown cone-galls at the terminal shoots of the 

 Abies covnnunis ; but observations ai-e wanting on the sub- 

 ject. I have never met with intermediate forms. 



88. Adelges pinil 



Rennie says, in his ^^ Insect Architecture," p. 347, 1857: 

 One of the prettiest of these pseudo-galls with which we are 

 acquainted, is produced on the Scotch fir {Pinus syhestris) by 

 the Aphis pinif which is one of the largest species of our in- 

 digenous Aphides. The production we allude to may be 

 found during the summer months on the terminal shoots of 

 this tree, in the form of a small cone, much like the fruit of 

 the tree in miniature, but with this difference, that the 

 fruit terminates in a point, whereas the pseudo-gall is nearly 

 globular. Its colour also, instead of being green, is reddish; 

 but it exhibits the tiled scales of the fruit cone. Rennie 

 figures this gall. Can any one produce evidence that its 

 maker is an Aphis ? From its habits, it appears to be a true 

 Adelges, 



89. Adelges laricis, Vallot. 



As regards this species, consult a summary hj Professor 

 Westwood of a paper by J. Curtis (Gardener's Chronicle, 

 1852, No. 37, p. 580). I have never met with this insect or 

 its production, and am generally dissatisfied with the little 

 knowledge I have of this group, but the present arrangement 

 may help us to a better understanding. 



