174 Mr. A. Ingpen on the Destruction o/ Cocci. 



as to furnish me with the following particulars relative to the cap- 

 ture of this new species, and in which it will be seen that he seems 

 now inclined to doubt the parasitic connexion between the Elenchus 

 and Bombus, and which he had formerly supposed to exist. 



" Around my pavilion at Black-river, in the Mauritius, are sta- 

 tioned some large Tamarind and Bois de Napp trees, (another of the 

 Leguminosae, but I do not know what genus or species ;) and the long 

 grass about their roots, quite shaded from the extreme heat of the 

 sun, concealed the little insects in question. I never could find 

 them elsewhere, though I carefully examined under the trees on the 

 hill and the thick jungle on the opposite side of the river. I began 

 latterly to think that it was most probably their locale, from the 

 wasps (Polistes }) being alone found in any numbers about the 

 house ; the yellow one building busily, last November, its papyritious 

 habitation and the other (black, with a long abdominal peduncle) 

 its clay mansion wherever it was permitted to remain unmolested. 

 At any rate my supposition stated in a note in Curtis's ' British Ento- 

 mology', fol. 433, becomes completely untenable, that it is parasitic 

 on the Bombus, as there are none in the island. I found a good 

 number of the Elenchus, but my net mutilated them so much that 

 those you have are the only ones which escaped tolerably. I ex- 

 amined a vast number of the yellow wasps, but could never find any 

 of the rings with appearances of any irregularity about them ; perhaps 

 it was the wrong season." 



XXX VI I. Bemdrks on the Dcstnu-tion o/" Cocci. 

 By A. Ingpkn, Esq., A.L.S., &jc. 



[Read April C, 1835.] 



I BEG to exhibit a cutting of a golden pippin apple-tree, put into 

 my hand by my worthy friend Mr. Anderson, Curator of the Physic 

 Garden at Chelsea, which is much infested with the Coccus arbormn 

 linearis, Geoff. ? The tree from which it was taken is trained against 

 a west-aspected wall, and every branch is similarly covered. The 

 injuries which the Cocci do to vegetation are very great, not only in 

 green- and hot-houses, but also, which is of more importance, to the 

 out-door fruits. The apple, pear, plum, peach, apricot, &c., suffer 

 alike from their destructive attacks. The effects of their ravages 



