KEY TO SPECIES OF COCCUS


 1. Dorsal body setae curved, apices pointed
 or blunt ......................... .2
 1'. Dorsal body setae straight, spine-like,
 cylindrical, clavate or capitate ....... 3
2. Legs well developed; anal plates with
 subdiscal setae; with 7-8 fringe setae ...
 ................... ........ longulus
2'. Legs greatly reduced; anal plates with-
 out subdiscal setae; with 4 fringe setae ..
 .................. pseudohesperidum
3. Legs greatly reduced; body slender, ex-
 tremities pointed; antennae 3-segmented
 (sometimes appearing 5-segmented) ....
 ....................... acutissimus
3'. Legs well developed; body oval, elon-
 gate oval, or pyriform; antennae 6, 7 or
 8-segmented .................... 4
4. Dorsal body setae spine-like, apically
 pointed; dorsal submarginal tubular
 ducts present or absent .....hesperidum
4'. Dorsal body setae cylindrical, clavate,
 or capitate; dorsal submarginal tubular
 ducts absent ......................5
5. Ventral thoracic tubular ducts present;
 tibiotarsal articulatory scleroses pres-
 ent ............ ........... .. viridis
5'. Ventral thoracic tubular ducts absent;
 tibiotarsal articulatory scleroses absent .
 ........................ capparidis




 COCCUS ACUTISSIMUS (Green)

SYNONYMS: Lecanium acutissimum Green
 1896:10, Green 1904:218
 Coccus acutissimus (Green),
 Fernald 1903:168, Stein-
 weden 1929:223, Takahashi
 1942:17, Gill et al. 1977:12
SUGGESTED COMMON NAME: banana-
shaped scale
FIELD DESCRIPTION: Females elongate,
pointed at both ends. Old adult females dark
brown (Fig. 28), young females creamy-white to
yellowish green. Individuals tend tb be located
along a major leaf vein and to become asym-
metrical.


DESCRIPTION: (Fig. 29) Adult female long and
slender, 2.5-5.5 mm long, 1.0-2.0 mm wide (Gill
et al. 1977). DORsUM Derm strongly sclerotized
in old females and riembranous in young adult
females. Small round or oval clear areas usually
present. Setae (Fig. 29, K) spine-like with


Fig. 28. Coccus acutissimus, adult female, DPI Photo by Frank
Mead.

pointed or blunt apices. Submarginal tubercles
(Fig. 29, L) number 8-19. Pores (Fig. 29, J)
anterior to anal plates with sclerotized rims
number 8-13. Each anal plate with 2 subapical, 3
apical, and 1 subdiscal setae. VENTER Mem-
branous, in old females a submarginal thickening
around body (Gill et al. 1977). Antennae re-
duced, 3 to 5 segments. Interantennal setae
usually 4 with medial pair longest. Legs reduced
with the tibia and tarsus fused or articulated.
Spiracular quinquelocular pores (Fig. 29, C)
usually in a single row from spiracle to margin.
Tubular ducts absent. Multilocular pores (Fig.
29, F) usually 7-loculed, few in vulvar region
and preceding 2 or 3 abdominal segments.
Prevulvar setae 3 pairs. MARGIN Marginal setae
(Fig. 29, 0) slender, pointed, sparse. Spiracular
setae (Fig. 29, M) 3 with median seta ca. 4X
longer than laterals.