. Economic entomology. Beneficial insects; Insect pests; Thysanura. MYRIAPODS. 19 CASE Spirostreptus javanicus (^;-.).—28. Specimens (i); 29. Enlarged figure .VJs of ditto. 28, 29. A large exotic species from Java, placed here to shew the large size to which the species reach in tropical climates, and thereby to shew the characters of the Juli more distinctly. Nos. Spirostreptus annulatipes (yV^/..?).—30. Specimens (2); 31. Enlarged figure of ditto. 30,31. Spirostreptus annulatipes (natural size). This is probably a climatal variety of Newport's Spirostreptus annulatipes. That species comes fr
. Economic entomology. Beneficial insects; Insect pests; Thysanura. MYRIAPODS. 19 CASE Spirostreptus javanicus (^;-.).—28. Specimens (i); 29. Enlarged figure .VJs of ditto. 28, 29. A large exotic species from Java, placed here to shew the large size to which the species reach in tropical climates, and thereby to shew the characters of the Juli more distinctly. Nos. Spirostreptus annulatipes (yV^/..?).—30. Specimens (2); 31. Enlarged figure of ditto. 30,31. Spirostreptus annulatipes (natural size). This is probably a climatal variety of Newport's Spirostreptus annulatipes. That species comes from West Africa, this from Natal. The banded legs and other characters agree, but the fine rugae on the segments spoken of by Newport are less numerous. Genus Polydesmus (Latr.). This genus is the transition link between the Snake Millipeds and the Centipeds. The species are flat and compressed, and the segments are usually more or less granulated or nodose on the back. The British species is small, but the exotic ones reach two inches or more in length. Their exterior is very hard and im- penetrable, but the joints and limbs are very fragile and easily detached. They have the same mode of development as the Juli, the early three pair of legs, however, appearing on the second, fourth, and fifth segments, instead of on the second, third, and fifth. They have also the same habits, and like them, have been. 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 Murray, Andrew, 1812-1878. [London] Chapman and Hall
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