(1979) listed Chartocerus fasciatus (Girault) as
occurring in Texas. In Hawaii, the coccinellid
Azya luteipes Muls. exerts substantial control
(Bartlett in Clausen ed. 1978).


REMARKS: Coccus viridis is one of the few scale
insect species that can be identified with cer-
tainty in the field because of the pale green color
and the dark internal U-shaped gut. However,
the U-shaped gut is not visible when specimens
are dead.
MATERIAL STUDIED: FLORIDA: Apopka,
1(1), Dizygotheca elegantissima, 28-X-1974, R.
A. Hamlen; Ft. Lauderdale, 1(1), Coffea sp.,
2-V-1974, J. A. Reinert; Miami, 1(1), Citrus sp.,
17-V-1977, T. D. Goodman; 1(1), Schinus
terebinthifolius, 19-IX-1978, G. Gwin and W. S.
Brewton; 1(1), Ixora sp., 2-X-1979, E. Pena and
R. Ramirez; Stuart, 1(1), Simaruba glauca,
15-III-1974, E. W. Campbell; Venice, 1(1),
Citrus paradise, 18-VI-1981, D. Culbert;
VIRGIN ISLANDS: ST. CROIX: Kipgshill, 1(1),
Citrus sp., 23-III-1973, G. W. Dekle; PUERTO
RICO: ISLAVERDE: Santuree, 1(1), Ixora coc-
cinea, 18-III-1974, L. F. Martorell.


Genus EUCALYMNATUS Cockerell, 1901

TYPE SPECIES: Lecanium tessellatum Signoret,
1873.
DESCRIPTION: Body of adult female flat or
slightly convex, ovoid or pyriform in outline.
Derm heavily sclerotized and divided into plate-
like regions. Legs well developed, with tibiotar-
sal sclerotization and free articulation. Antennae
7 to 8-segmented. Marginal setae numerous,
blunt to slightly fringed, usually bent posteri-
orly. Spiracular setae in groups of 3, median seta
longest. Dorsal body setae thick throughout their
length, usually bent and with blunt apices. Sub-
marginal tubercles present. Multilocular pores
confined to vulvar area. Quinquelocular pores in
spiracular furrows and occasionally in vulvar
area. Tubular ducts absent. Anal ring with 8
setae.
NOTES: The derm of nymphs and young adults
of Eucalymnatus is not heavily selerotized or
divided into plates, and they resemble members
of the genus Coccus. Ray and Williams (1981)
described all developmental stages of the
tessellated scale. The only species of Eucalym-
natus in North America is the tessellated scale, E.
tessellatus. Several other species are known from
South America, and one is known from Africa.



 EUCALYMNATUS TESSELLATUS
 (Signoret)

SYNONYMS: Lecanium tessellatum Signoret
 1873:401.
 Lecanium perforatum New-
 stead, Borchsenius 1957:306
 Coccus tessellatus (Signoret),
 Steinweden 1929:224.
 Lecanium (Eucalymnatus) tes-
 sellatus (Signoret), Cockerell
 & Parrott 1901:57
COMMON NAME: tessellated scale
FIELD DESCRIPTION: Adult female (Fig. 40)
dark brown, flat, ovate outline, asymmetrical,
strongly sclerotized; large triangular, square,
and multiangular cells form a reticulate pattern
(Borchsenius 1957).
DESCRIPTION: (Fig. 41) Adult females ovate to
asymmetrical, 2.5-5.0 mm long, 2.0-3.0 mm
wide. DonsuM-Derm heavily sclerotized in
older mature females, tessellated with plates
separated by membranous derm. Setae slender,
curved, with blunt apices. Submarginal