BIOLOGY: No information about the biology of
this species is known.
ECONOMIC IMPORTANCE: Previously
reported as a pest of orchids in California
(Steinweden 1945). It has not been collected in
California for a number of years (Gill et al.
1977). Dekle and Kuitert (1968) did not consider
it an economic pest of orchids in Florida.
REMARKS: According to Gill et al. (1977), this
species is not congeneric with C. hesperidum but
is closely related to members of the New World
genus Mesolecanium Cockerell.
 The strongly sclerotized dorsum, curved dor-
sal setae, and reduced appendages will separate
this species from other Florida soft scale species.
Frequently, marginal setae appear to be nearly
hooked at the apex.
MATERIAL STUDIED: FLORIDA: Oneco,
3(3), Cattleyae trianca, 14-VIII-1922, P. F.
Robertson; NEW YORK: Mamaroneck, 1(1), or-
chid, 2-X-1920, H. Mowry; Jenio, Long Island,
1(1), Cattleya M. (orchid), 15-11-1921, A. C.
Brown.



 COCCUS VIRIDIS (Green)

SYNONYMS: Lecanium viride Green 1889:
 248.
 Coccus viridis (Green), Fernald
 1903:174, Miller 1931:18,
 Fredrick 1943:12, Ferris in
 Zimmerman 1948:311, Wol-
 cott 1948:171, Merrill 1953:
 93, Ebeling 1959:227, De-
 Lotto 1960:397, Talhouk
 1975:21, Gill et al. 1977:37.
 Lecanium (Trechocoris) hesperi-
 dum africanum Newstead
 1906:73, (nomen nudum) De-
 Lotto 1960:397, Gill et al.
 1977:37.
COMMON NAME: green scale
FIELD DESCRIPTION: Adult female (Fig. 38)
oval to elongate oval, pale green, slightly
transparent, flat to slightly convex; usually with
an irregular internal U-shaped gut with black
spots (Gill et al. 1977). Eye spots visible on
anterolateral margins.
DESCRIPTION: (Fig. 39) Adult female oval to
elongate oval, 1.5-3.7 mm long, 1.0-2.2 mm
wide. DoRsuM-Derm membranous or only
slightly sclerotized, with round or oval clear
areas. Setae (Fig. 39, K) short, cylindrical to
clavate, scattered. Four to 11 submarginal


tubercles (Fig. 39, L) around body. Tubular
ducts absent. Microducts (Fig. 39, N) usually
associated with clear areas. Anal plates (Fig. 39,
Gi) each with 2 subapical and 4 short apical
setae. VENTER-Derm membranous. Antennae
7-segmented. Legs well developed with tibiotar-
sal scleroses. Ventral tubular ducts (Fig. 39, E)
between meso- and metathoracic legs and across
body in mid-region of first abdominal segment.
Multilocular pores (Fig. 39, F) with 7 loculi on
all abdominal segments. MARGIN -Marginal
setae (Fig. 39, 0) short, fimbriated, 6-16 between
anterior and posterior spiracular setae.
Spiracular setae (Fig. 39, M) 3, with medial seta
2X longer than laterals.
DISTRIBUTION: Map XIII. HI (DC, NY, in
greenhouses). Foreign: Nearly cosmopolitan in
tropical and subtropical areas.


Map XIII. Distribution of Coccus viridis.


BIOLOGY: Multiple generations per year are
produced (Gill et al. 1977). In Florida, one
generation is completed in 50-70 days in the late
summer months (Fredrick 1943). On leaves they
are usually found on the under surfaces and fre-
quently along the midveins (Gill et al. 1977).
ECONOMIC IMPORTANCE: C. viridis is a
serious pest of coffee, citrus, and other crops in
many tropical areas (Gill et al. 1977). Talhouk
(1975) reported it as a pest of Citrus in Bolivia,
Central America, Colombia, and Venezuela.
Ebeling (1959) lists it as a minor pest of Citrus in