. Australian insects. Insects. ORTIIOPTERA. 41 anal plates that are used after the manner of an auger to cut a circular pit in the hard soil, the abdominal segments being extended while the operation is going on; the eggs are deposited at the bottom of the hole, enclosed in a similar exudation as that which encloses the eggs of the mantis, and some of the plague locusts deposit two or more egg masses before they die. These grasshoppers have been studied by many entomologists, who have subdivided them into different groups. Brunner von Wattenwyl places them under nine subfamilies or tribes chie
. Australian insects. Insects. ORTIIOPTERA. 41 anal plates that are used after the manner of an auger to cut a circular pit in the hard soil, the abdominal segments being extended while the operation is going on; the eggs are deposited at the bottom of the hole, enclosed in a similar exudation as that which encloses the eggs of the mantis, and some of the plague locusts deposit two or more egg masses before they die. These grasshoppers have been studied by many entomologists, who have subdivided them into different groups. Brunner von Wattenwyl places them under nine subfamilies or tribes chiefly based on the structure of the head. Saussure has described some of our species; Walker, Stoll and Blanchard Fig-. 23.—Lumstn danica ;Linn) The YeIlow-\ving:ed Locust. ("Agricultura Gazette," ) The Yellow-winged Locust, Locus I a danica, is common in open forest country all over Australia, and usually makes a rustling noise as it flies up; it is too well known to need des- cribing; with its wings closed it is a mottled, dull brown and green insect up to 2 inches in length, with a short broad head and crested thorax; when the wings are opened it shows a large patch of rich yellow banded with black. The male is often fully a third smaller than the female. It has been described under a great number of different names, but is now considered the same insect as found in the South of Europe, Africa and Asia. The Blue Mountain Locust, Oedaleus senegahnsis, might easily be mistaken for a smaller dull coloured specimen of the last one, but the yellow tint, when present, is very slight, and the wings have the tips blackened as well as the inner. 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
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