. Annals of the Entomological Society of America. Entomology. 334 Annals Entomological Society of America [Vol. VIII, The only species of Diacamma known to occur in Australia is the bronzy black and beautifully sculptured D. aiistrale (Fig. 2). The remainder and great majority of the species of the genus are Indomalayan. I found aiistrale rather common in several localities in Queensland (Cairns, Kuranda, Koah, Townsville) nesting in the ground in open, sunny and more or less grassy places. ' The nests are craters four inches to a foot in diameter and two to six inches high, with a very large
. Annals of the Entomological Society of America. Entomology. 334 Annals Entomological Society of America [Vol. VIII, The only species of Diacamma known to occur in Australia is the bronzy black and beautifully sculptured D. aiistrale (Fig. 2). The remainder and great majority of the species of the genus are Indomalayan. I found aiistrale rather common in several localities in Queensland (Cairns, Kuranda, Koah, Townsville) nesting in the ground in open, sunny and more or less grassy places. ' The nests are craters four inches to a foot in diameter and two to six inches high, with a very large central opening, often 1 to 11^9 inches in diameter. This opening leads almost directly into a few large chambers situated. Figure 2 Fig. 2. Diacamma aiistrale. Workers and cocoon xlf. Fig. 3. Diacamma aiistrale. Male xlf. Figure 3 in the crater, and from them galleries descend into the ground, apparently to some depth. The outer surface of the crater is often covered with growing grass or other plants. The colony of ants numbers about 50-100 individuals. They are rather timid and usually retreat into the nest at the slightest alarm. Their movements are exquisitely soft and graceful. Their sting is rather feeble, except when it comes in contact with the thin skin on one's wrists or between the fingers. In the "Genera Insectorum" Emery enumerates 13 species of Diacamma and one of these, the Indian D. rugosum, is so well known that 22 varieties and subspecies of it have been described;. 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 Entomological Society of America. [College Park, Md. , etc. ] : Entomological Society of America
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