Ceroplastes galeatus Newstead
Creators: name: Hodgson, Chris J.
name: Peronti, Ana L. B. G.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coccidae
Ceroplastes
Ceroplastes galeatus

description: Ceroplastes galeatus Newstead   
(Fig. 59; Map fig. 104)  
 Ceroplastes galeatus Newstead, 1911a: 95.   
 Ceroplastes galeatus Newstead; Le Pelley, 1968: 350.   
 Material examined: Lectotype ♀ (here designated): Uganda: right label: Colonial Office / Ent. Res. Comm. (T.A.) / 1804 / Entebbe / 10/VIII/10 / BM 1945, 121; left label: Ceroplastes / galeatus / Newstead / Cotype ♀♀ (BMNH): 1/1 (fair-poor, dorsum and venter separated).   
 Paralectotype ♀: as for lectotype, 1/2 (fair; split into dorsum and venter) + 4/6 (poor).   
 Non-type: as previous but collected on 15.ix.1910, C.C. Gowdey (BMNH): 1/2 (fair-poor).   
 Note. The following description is taken from the specimens divided into dorsum and venter and from a young adult female.   
 Unmounted material. "Test of adult female — wax hard; creamy white or dusky yellowish white; roughly hemispherical; divided into distinct plates; dorsum with a central dark nuclear spot situated in a deep depression, the latter extending as a narrow groove as far as the region of the anal lobes; lateral plates separated by dark depression lines; lateral margins over the stigmatic clefts projecting considerably beyond the hemispherical portion, in the form of 2 peak-like extensions, on both surfaces of which are the opaque white stigmatic bands; area surrounding the anal orifice almost denuded, so that the colour of the insect is visible. Width 4.5–5.0 mm, length 4.0– 4.5 mm." (Newstead, 1911a: 95).   
 Mounted material. Body elongate oval, probably rather convex, with shallow, stigmatic clefts; distinctness of dorsal tubercles uncertain. Caudal process short and stout, pointing more or less vertically. Length 2.7–3.5 mm, total width of mounted specimen 1.75–2.5 mm; width of venter 1.5–1.65 mm.   
 Dorsum. Derm entirely membranous on young individuals, except for heavily sclerotised caudal process; derm becoming more sclerotised on old individuals. Caudal process heavily sclerotised, with simple microducts more or less throughout; 0.6–0.7 mm long, 0.70–0.75 mm wide. Derm with eight large clear areas, distributed as usual, each without dorsal setae. Dorsal setae rather variable in shape, each mostly bluntly spinose, margins almost parallel, but some quite pointed; each subequal to or slightly longer than width of basal-socket (length 3.0–3.5 µm; basal socket width 2.5–3.0 µm); quite frequent throughout but absent from clear areas. Dorsal pores: (i) loculate microducts of rusci-type most abundant, those with 2 satellite loculi rare; rather sparse throughout apart from in clear areas where absent; wax-plate lines obscure but most pores with 2 satellite loculi probably restricted to them; (ii) simple microducts present but distribution uncertain. Preopercular pores present but number uncertain, probably about 12 in a transverse band; each small. Anal plates each with 3 pairs of large setal sockets dorsally (all setae missing) and a short apical seta. Length of anal tube and structure of anal ring unknown.   
 Margin. Marginal setae strongly setose; each seta 16–20 µm long; with perhaps 15 or 16 between eyespots, and (on each side) 3–6 between eyespots and anterior stigmatic setae, 2 or 3 between stigmatic clefts (intermingling with stigmatic setae) and maybe about 10–12 on each side of abdomen; each anal lobe with 4 long setae, each about 40–60 µm long. Stigmatic clefts shallow, each with a marginal line of bluntly pointed, conical stigmatic setae, line broadening to 3 or 4 setae deep in each cleft; often with 1 rather larger spinose seta in middle of each group, latter about 15–17 µm long, 8–10 µm wide at base; most other stigmatic setae about 10–12 µm long and 6–8 µm wide at base; setae extending some distance along margin on either side of each cleft, sometimes almost meeting between clefts; with non-marginal stigmatic setae also extending some distance on either side of cleft; with a total of 30–37 stigmatic setae in each cleft of which about 20–26 setae on margin and 10–14 non-marginal; also with 0–2 stigmatic setae anteriorly between eyespots. Eyespots each about 25–28 µm wide.   
 Venter. Derm entirely membranous; cephalic region apparently rather large. Pregenital disc-pores abundant around genital opening and across preceding segment, plus a few in segment V; mostly absent more anteriorly, although 1 present in segment III on 1 specimen. Spiracular disc-pores present in a broad band near each spiracle but narrowing abruptly and then broadening again near margin, particularly in posterior band; each band with perhaps 60–70 disc-pores between margin and each spiracle. Ventral microducts showing nothing distinctive. Ventral tubular ducts absent in cephalic region and very scarce (sometimes possibly absent) associated with anogenital fold, only 1 found on 1 side of abdominal segment VI on 1 specimen. Submarginal setae sparse, each about 8–10 µm long.   
Antennae each with 6 segments, segment III rather short with no sign of pseudo-articulations; total length 220–235 µm. Clypeolabral shield about 130–135 µm long. Spiracles: width of peritremes 40–45 µm. Legs well developed, each with a very small and indistinct tibio-tarsal articulatory sclerosis; presence of claw denticle unknown; claw digitules both broad and subequal in length to tarsal digitules; dimensions of metathoracic legs (µm): coxa 95–110; trochanter + femur 125–130; tibia 80–85; tarsus 60–65, and claw 18–20.  
 Discussion. The adult female of C. galeatus initially appears similar to several other species in the C. rusci - group but differs in: (i) having no ventral tubular ducts in the cephalic region; (ii) almost no tibio-tarsal articulatory scleroses; (iii) the distribution of the stigmatic setae, with the largest lying within the group (i.e., not the most dorsal seta); (iv) in the shortness of antennal segment III, and (v) stigmatic setae not meeting between clefts. Other species in the C. rusci- group that lack tubular ducts in the cephalic region are C. singularis, C. balachowskyi (described as new above) and C. ghesquierei (described as new below). C. singularis differs in having stigmatic setae along entire margin, C. balachowskyi differs in having a very large mid-dorsal clear area and C. ghesquierei is very similar but has many more stigmatic setae which almost meet between the clefts.   
 C. galeatus appears to be known only on coffee (Rubiaceae) and an unknown host from Uganda. The fact that it was a pest of coffee at that time suggests that it must have been common.
description: Published as part of Hodgson, Chris J. & Peronti, Ana L. B. G., 2012, 3372, pp. 1-265 in Zootaxa 3372 on pages 121-124