. Australian insects. Insects. 210 COLEOPTERA. wide ranj>o fioni Tasmania to New Caledonia and the Ma laran Islands. The Genus Oreiis contains a number of metallic blue-black ladybirds which feed chiefly upon scale insects; their larvae are grey and black creatures with the dorsal surface covered with fine spines; several species are common on scale in- fested citrus trees. Orriis rliali/heiis. measuring about }i of # * Fig. 105.â'â ^'"f"''' ehalybevii ( Tlie Steel-blue Lady-bird. ("Aji;ricullvual Gazette,' W.) an iuch in length, is of a uniform deep metallic ste
. Australian insects. Insects. 210 COLEOPTERA. wide ranj>o fioni Tasmania to New Caledonia and the Ma laran Islands. The Genus Oreiis contains a number of metallic blue-black ladybirds which feed chiefly upon scale insects; their larvae are grey and black creatures with the dorsal surface covered with fine spines; several species are common on scale in- fested citrus trees. Orriis rliali/heiis. measuring about }i of # * Fig. 105.â'â ^'"f"''' ehalybevii ( Tlie Steel-blue Lady-bird. ("Aji;ricullvual Gazette,' W.) an iuch in length, is of a uniform deep metallic steel blue. O. aiistralasiae is a larger species with two rounded yellow spots on each side of the elytra. 0. Ulumilatus is a still larger insect, with only one yellow blotch on either side ot the front of the thorax. , ,. ^ Norms ;< is a tiny red and black lady-bird, very variable in its black colouration; it was better known as. Fig. 106.â0(c«.v nvKti((lagiae (Boisd.). Tlie Six-spot Blue Lady-bird. (" Ajjricultural Gazette,'' ;) Vcdalia canlinalis. when it was collected in great numbers and forwarded to America to destroy the Fluted or Cottony- cushion Scale (Icerya piirchasi), which had been introduced from this country into California and damaged the orange trees. It has since been introduced into other parts of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Froggatt, W. W. (Walter Wilson), 1858-; Metcalf Collection (North Carolina State University). NCRS; Tippmann Collection (North Carolina State University). NCRS. Sydney, W. Brooks
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Keywords: ., bookauthorti, bookcentury1900, bookdecade1900, booksubjectinsects
