. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. I'ig. 14 âRodolia icer- yce â enlarged (after Riley). â were all preying upon Icerya. Thej" were sent to Nelson and placed under tent with the Scales. A few days later, how- ever, the wind took away the tent and nothing more has been seen since of the Coccinelli<ls. Several si)ecies of these beetles which Mr. Maskell kindly l)resented me with were left with you at Washington. Amongst them I could not find the Rodolia iceryce, Janson (Fig. 14), which is destroying the Scales at the Cape and, with the possi
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. I'ig. 14 âRodolia icer- yce â enlarged (after Riley). â were all preying upon Icerya. Thej" were sent to Nelson and placed under tent with the Scales. A few days later, how- ever, the wind took away the tent and nothing more has been seen since of the Coccinelli<ls. Several si)ecies of these beetles which Mr. Maskell kindly l)resented me with were left with you at Washington. Amongst them I could not find the Rodolia iceryce, Janson (Fig. 14), which is destroying the Scales at the Cape and, with the possible exception of one species, I do not think they will feed upon Icerya. My time was too short to visit Nelson, and Mr. Maskell kindly promised to secure for me a box full of scales from that district, so as to enable me to find out whether some parasites or enemies existed there. This box was sent to me on board the steamer at Auckland and, on opening the same, several flies were found that had issued en route. Only one of them was in perfect condition ; all the others were crippled. They had crawled in among the paper used in making up the parcel. No other specimens were bred and no holes were observed in the scales, so the only possibility remains in the larva of this fly being predaceous upon the eggs of Icerya. Apart from these flies no other insects were observed from the Nelson Scales. On my return to Napier I got at once to work gathering the Cocciuellids in all stages. They were in such numbers that I found it not very difficult to collect here about six thousand specimens during the three days (February 14 to 16). As many as eight eggs of the Lady-bird were observed on the upper side of the female Icerya just beginning to exude cottony matter. Oppo- site to this on the small branch of Acacia, five young larvae of the Lady-bird were feeding on the underside of a half-grown scale; in one instance even nine Coccinellid larvte were found attached to a small Icerya. The
Size: 1553px × 1608px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectentomology, booksubjectinsects, booky