. Economic entomology. Beneficial insects; Insect pests; Thysanura. 252 ARACHNOIDEA. CASE mentary character being confined to the last pair of legs, is suffi- cient to make a sub-genus for their reception necessary. We give figures of the two that have been described : nothing is known of their development as yet. Trichodactylus osmi^ {r>iif.).. Tricliodactylus osmiae. Copied from original figure by Dufour. Trichodactylus osmiK. Copied from figfure by Donnadie;]. Found on a species of Osmia. It will be seen that it has the mouth-piece of Hypopus with its two projecting bristles. No. 5. Tric
. Economic entomology. Beneficial insects; Insect pests; Thysanura. 252 ARACHNOIDEA. CASE mentary character being confined to the last pair of legs, is suffi- cient to make a sub-genus for their reception necessary. We give figures of the two that have been described : nothing is known of their development as yet. Trichodactylus osmi^ {r>iif.).. Tricliodactylus osmiae. Copied from original figure by Dufour. Trichodactylus osmiK. Copied from figfure by Donnadie;]. Found on a species of Osmia. It will be seen that it has the mouth-piece of Hypopus with its two projecting bristles. No. 5. Trichodactylus xylocop^.—6. Magnified sketch of ditto, copied from figure. Found on Xylocopa violacea. There is some appearance of transverse lines on the surface of this and the preceding species, but we have had no means of ascertaining how far they are of the same character as those on the Sarcoptidse. The hair ter- mination of the last pair of legs undoubtedly has some affinity to that group, and it is obvious that we are approaching its terri-. 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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