The house cricket, Acheta domesticus, is an adaptable experimental animal, that can be inexpensively reared year round in a small temperature-regulated room. Growth is rapid and development occurs without diapause at 30 "C. Different size glass aquaria or any convenient containers can be used to house the crickets as long as the relative humidity in the container can be regulated to be high for hatchlings and about 50 % for older crickets. Reusable cardboard gallon cartons with screen lids provide excellent containers for groups of up to 15 crickets each. Purina@ Cricket Chow@ provides all essential nutrients for continuous generations of large, healthy crickets. Specific information is provided for colony management, and isolation of known age individuals. Some basic developmental, metabolic and physiological values for the house cricket are provided.Purina and Cricket Chon are registered trademarks of the Ralsron-Pu~-ina Co., St. Louis, hlissouri. ,q US. Copvright Clearance Center Code Statement

Six eyelashes, three from the upper lid and three from the lower lid, were epilated from 256 subjects and examined for Demodex. D. folliculorum (Simon) was found in 16% of the subjects. Mites were more abundant in older persons and in persons with diabetes. Mites also were associated with a scarcity of lashes in the lower lid. Hierarchical log-linear analysis showed that the associations of greater mite abundance with diabetes and with madarosis were independent of age. The 43 persons from whose lid margins Staphylococcus aureus was cultured seemed to have been more likely to have two or more mites than those without S. aureus (11.6 versus 5.2%), although this difference fell short of statistical significance (P = 0.125).

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