D) in groups of 3 with medial seta 2.5 to 3X longer than laterals. DISTRIBUTION: Map XVIII. Recorded from every state east of the Mississippi River except Maine, New Hampshire, and Vermont. Also recorded from AR, IA, LA, MN, MO, NM, OK, TX. Foreign: There is no indication that this scale occurs outside of North America (Williams & Kosztarab 1972). Map XVIII. Distribution of Mesolecanium nigrofasciatum. BIOLOGY: According to Williams and Kosztarab (1972) the female terrapin scale reaches maturity in early spring and is viviparous. The 1st instar nymphs remain under the female for 1-3 days, then migrate to leaves where they feed. After about 18 days they molt into a 2nd instar and 18 days later become adult females and move back to twigs. Meanwhile, the males pass through 5 stages, emerge, mate, and then die. Mated females "hibernate" during the winter. ECONOMIC IMPORTANCE: Simanton (1916) ranked terrapin scale as second among scale in- sects as a pest of peaches. Symons & Corey (1910) state that the greatest damage was caused to fruit and leaves by fungi growing in the large amounts of honeydew. Although frequently encountered in Florida, it is apparently of little economic con- sequence. NATURAL ENEMIES: Numerous parasites are listed by Peck (1963) and Krombein et al. (1979). Some of those are as follows: Aphycus annulipes (Ashmead), FL; Cheiloneurus albicornis (Howard), LA; Coccophagus fraternus Howard, NY to FL; C. lycimnia (Walker), cosmopolitan pest of many Coccoidea; Encyrtus fuscus (Howard), AL; Eunotus lividus Ashmead, FL; Metaphycus pulvinariae Howard, cosmopolitan; Phycus varicornis (Howard), Canada to FL; Prospaltella aurantii Howard, cosmopolitan; Tetrastichus minutus (Howard), FL; Char- tocerus pulcher (Girault), NC, AR. REMARKS: Terrapin scale is a native North American species and was observed as early as 1872 by Theodore Pergande (Williams & Kosztarab 1972). It was then believed to be European peach scale Parthenolecanium per- sicae (Fab.). Mesolecanium nigrofasciatum is likely to be confused with Parthenolecanium spp. in Florida. MATERIAL STUDIED: FLORIDA; Esterno, 2(2), Vaccinium sp., 6-1-1979, W. T. Walsh; Fernandina Beach, 1(1), Persea borbonia, 13-11-1979, G. T. Smith and W. H. Shirley; Ft. Drum, 1(1), Liquidambar styraciflua, 27-X-1980, S. P. Beidler; Inverness, 1(1), Vac- cinium darrowi, 1-II-1980, R. Phillips; In- verness, 2(2), bay tree, 8-11-1980, R. H. Phillips; St. Augustine, 2(2), Magnolia virginiana, 21-IV-1981, K. Miller. Genus NEOLECANIUM Parrott, 1901 (in Cockerell and Parrott 1901) TYPE SPECIES: Lecanium imbricatum Cockerell, 1896c. DESCRIPTION: Body of adult female convex, naked or dusted with a white powdery wax bloom. Derm sclerotized at maturity. Dorsum with a dense pattern of bilocular pores. Sub- marginal tubercles absent. Large discoidal pores around anal plates. Anal plates with varying number of apical, subapical, and fringe setae. Anal ring with 10 setae. Antennae 6-segmented. Legs reduced, without tibiotarsal sclerotization. Quinquelocular pores in spiracular furrows, in vulvar area, and on abdomen. Multilocular pores absent. Tubular ducts confined to vulvar area. Marginal setae slender and non-fimbriate. Spiracular setae in groups of 3, short, stout, sub- equal. NOTES: The eggs are protected by the body of the adult female. The genus Neolecanium was