Apiomorpha pharetrata (Schrader)

Hodgson, Chris, 2020, A review of neococcid scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) based on the morphology of the adult males, Zootaxa 4765 (1), pp. 1-264: 58-61

publication ID

http://doi.org/ 10.11646/zootaxa.4765.1.1

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:C442D94C-0EB4-4509-B762-913707214819

DOI

http://doi.org/10.5281/zenodo.3796743

persistent identifier

http://treatment.plazi.org/id/03B2EA64-0A16-466E-2CFC-FB6DFDCFD450

treatment provided by

Carolina

scientific name

Apiomorpha pharetrata (Schrader)
status

 

Apiomorpha pharetrata (Schrader)   ( Fig. 21 View FIGURE 21 )

Brachyscelis pharetrata Schrader 1863, 3   . Type data: Australia, New South Wales, in neighborhood of Sydney, on Eucalyptus   sp. Type status unknown.

Apiomorpha pharetrata (Schrader)   ; Cockerell 1896c, 328. Change of combination.

Material examined. Apiomorpha pharetrata   , Australia, NSW, Oallen Ford Rd, “Burramarona”, Windellama, - 34.972778 149.902778, Eucalyptus   ?eugeniodes ( Myrtaceae   ) 4104, P.J. Gullan, 24.iii.2012 (P.J. Mills 00440) ( ANIC) 3/3 ad ♂♂ (fair to poor).

(Described from 3 specimens in rather poor condition, all rather mishappen and with some missing legs and antennae but most features visible).

Mounted material: quite large, total length 2.45–2.65 μm, width across mesothorax 425–505 μm, abdomen slightly attenuated; antennae of moderate length, about half total body length; fleshy setae easily separated from hair-like setae; fs on scape, tibia and tarsi shorter and parallel sided. Wings well developed, each about 3/4 body length; alar setae absent. Hamulohalteres absent.

Head: width across genae about 255 μm; head length about 255 μm. Median crest represented only by a shal- low median ridge of light sclerotisation with no striations or reticulations. Postoccipital ridge (por) well developed, broadening laterally, anterior arms rather parallel and close together but posterior arms widening; with 3–5 pairs of hs dorsal head setae (dhs); minute simple pores absent. Mid-cranial ridge: dorsal ridge (dmcr) well developed, extending posteriorly to level with dorsal simple eyes; ventral ridge (vmcr) represented by a pair of distinct lateral arms (lmcr), each extending posteriorly to ocular sclerite; with a total of 2 or 3 hs ventral mid-cranial ridge setae (vmcrs). Genae (g) not reticulated but with 2 hs genal setae (gs) on each side laterad to postoccipital ridge. Eyes: with two pairs of large, round, slightly protruding, simple eyes, ventral eyes (vse) larger than dorsal eyes (dse): vse 80–85 μm wide, dse about 75 μm wide. Ocelli (o) apparently absent. Ocular sclerite (ocs) with a few concentric striations or ridges around and between eyes. Preocular ridge (procr) extending to about half-way to mid-cranial ridge dorsally. Postocular ridge (pocr) strongly developed ventrally and extending dorsally to level with dorsal simple eyes. Dorsal ocular setae absent. Ventral head setae (vhs): about 4 or 5 in a line above vse. Preoral ridge absent. Cranial apophysis (ca) bifurcate, 40–60 μm long.

Antennae: 10-segmented and filiform; length 1.23–1.35 mm long (ratio of total body length to antennal length 1:0.50). Scape (scp): 60–65 μm long, 65–80 μm wide, with 1 hs ventrally and 2 mediolaterally. Pedicel (pdc) 65–87 μm long, 60–70 μm wide; concentric ridges faint distally only; with 7–9 fs + 5–7 hs + 1 campaniform pore (fs similar to those on flagellum). Segments III–IX more or less parallel-sided, 25–35 μm wide; fs unusually strong, each 43–50 μm long; hs all similar, each 28–40 μm long; lengths of segments (μm): III 160–165; IV 165–170; V 170–180: VI 170–200, VII 170–185, VIII 140, IX 120–130; approximate number of setae and sensilla per segment: III 8 fs + 0 hs, IV 13 or 14 fs + 4–7 hs, V 14 fs + 8–13 hs; VI 11–18 fs + 10–12 hs; VII 13–17 fs + 9–12 hs; VIII 13–16 fs, 5–8 hs +1 antennal bristle (ab); IX 8–10 fs, 6 hs + 1 ab. Segment X 75–90 μm long, with 3 or 4 fs, 3–5 hs + 3 or 4 large and 1 shorter ab; capitate setae entirely absent.

Thorax. Prothorax: pronotal ridge (prnr) well developed and probably fusing medially on dorsum; lateral pronotal sclerites (prn) distinct; without lateral pronotal setae. Medial pronotal and post-tergital setae apparently absent. Post-tergites probably absent. Sternum (stn 1) not sclerotised; transverse ridge moderately well developed, possibly with apophyses (stn 1 a); median ridge absent but with a small area with ridges posteriorly; prosternal setae (stn 1 s) absent. Proepisternum + cervical sclerite (pepcv) showing nothing distinctive. Anteprosternal setae and antemesospiracular setae absent.

Mesothorax: prescutum (prsc) elongate, length significantly greater than width, (160–)230 μm long, 165–185 μm wide; sclerotised, without nodulations; prescutal ridges (pscr) well developed; prescutal suture (pscs) poorly developed or represented by slight striations; prescutal setae absent. Prealare (pra) and triangular plate (tp) well developed. Scutum (sct): median area sclerotised, 55–80 μm long, with a single pair of scutal hs laterally; anterolateral margins lightly striated; prealar ridge (prar) weak. Scutellum (scl) rather rounded anteriorly and therefore width unclear, perhaps 185 μm wide, 90–105 μm long; with a strong inverted U-shaped scutellar ridge (sclr); not tubular but with a large foramen; with 1 pair of scutellar setae (scls); posterior notal wing process (pnp) quite long, diagonal and heavily sclerotised. Basisternum (stn 2) 350–390 μm wide, 235–290 μm long; median ridge absent; bounded anteriorly by a weak marginal ridge (mr) (absent medially) and posteriorly by strong precoxal ridges (pcr 2); without basisternal setae (stn 2 s); lateropleurite (lpl) rather narrow, without an extension from marginal ridge; furca (f) well developed, with a broad base, narrow-waisted and extending almost to marginal ridge. Mesopostnotum (pn 2) well developed; postnotal apophysis (pna) well developed. Area bounded anteriorly by scutellum and laterally and posteriorly by mesopostnotum membranous. Mesepisternum (eps 2) not reticulated; subepisternal ridge (ser) strongly sclerotised, arising from lateral ridges of basisternum. Postalare (pa) well developed; without postalare setae and not reticulated anteriorly. Mesothoracic spiracle (sp 2): width of peritreme 33–37 μm. Postmesospiracular setae absent. Tegula (teg) present, each with 6–11 tegular setae (tegs).

Metathorax: metapostnotum quite broad; with 1 pair of hs metatergal setae (mts) medially. Dorsospiracular setae (dss): 1 or 2 pairs hs. Dorsal part of metapleural ridge present but without a suspensorial sclerite; ventral part of metapleural ridge (plr 3) normal; precoxal ridge (pcr 3) and mesepisternum (eps 3) absent; with 1 pair of postmetaspiracular setae. Metepimeron (epm 3) short, without setae. Antemetaspiracular setae absent. Metathoracic spiracle (sp 3): width of peritreme 37–45 μm. Metasternum (stn 3) membranous; metasternal apophyses (stn 3 a) not detected; with 0 or 1 pairs of anterior metasternal setae (amss) but posterior metasternal setae (pmss) absent.

Wings: hyaline, 1.78–1.9 mm long, 0.62–0.69 mm wide (ratio of length to width 1:0.35; ratio of total body length to wing length 1:0.75); alar lobe present but small; alar setae and alar sensoria absent. Hamulohalteres absent.

Legs: metathoracic legs longest. Coxae (cx): I 155–165; II 130–160; III 145–165 μm long; with 0 fs + 8–10 hs on each coxa III; long apical seta setose, each 65–70 μm long. Trochanter (tr) + femur (fm): I 330–350; II 310–340; III 340–365 μm long; trochanter III with 0 fs + 4 or 5 hs; campaniform pores oval and in a semicircle; long trochanter seta 50–60 μm, femur III with 0 fs + 10–13 hs. Tibia (ti): I 305–330; II 295–315; III 330–350 μm, tibia III with many setose and spinose setae, including 1–4 fs, each 10–12 μm long; and with 2 apical spurs (tibs), length 15–25 μm. Tarsi (ta): I 115–135; II 125–135; III 138–150 μm long (ratio of length of tibia III to that of tarsus III 1:0.42); tarsi 2 segmented; tarsus III with many setae, including 9–12 fs; tarsal spurs undifferentiated but setae in this position each 20–25 μm long; tarsal campaniform pore (cp) present; tarsal and claw digitules barely capitate, both longer than claw. Claws (c) quite broad, shorter than width of tarsi, almost straight, with a small denticle; length: III: 28–33 μm.

Abdomen: somewhat attenuated; tergites (at) present weakly on more posterior segments; sternites (as) present on all segments; pleurites all membranous. Caudal extensions (ce) on segment VII absent. Setae all long hs, each 50–70 μm: dorsal abdominal setae (ads): I–VII each with 4 hs; ventral abdominal setae (avs): II–VII 4 hs; dorsal pleural setae (dpls): I–VII generally 3 hs, and ventral pleural setae (vpls): I–VII 1 hs.

Segment VIII: tergite (at) weakly sclerotised, sternite sclerotised; ante-anal setae absent. Margins of segment rounded; caudal extension absent. Setae: with 4 long pleural setae, longest 80–90 μm, others 50–60 μm long. Glan- dular pouches (gp) cone-shaped, with loculate pores extending out of pouch; with 2 glandular pouch setae (gps), each 100–150 μm long with sharp apices.

Genital segments: penial sheath (ps) divided into a bulbous segment IX and a longer, sharply pointed style; length of segment IX 85–95 μm, width 105–120 μm; anal opening 75–90 μm wide, near posterior margin of segment IX; seg- ment IX with total of 5–10 hs setae on each side and ventrally. Style 215–230 μm long, 65–70 μm wide at base, with a long narrow, parallel-sided apex; with a pair of long hs about half-way along length, each 38–45 μm long; other setae absent; with a few small sensilla near apex. Aedeagus (aed) quite long, gradually narrowing to a narrow apex; length 170–220 μm. Basal rod sclerotisation (bra) very short.

Comment. The adult male of this species is very similar to that of A. spinifer   . Possible differences are: (i) the number of tegular setae: 6–11 on A. pharetrata   but only 2–5 on A. spinifer   ; (ii) the length of the penial sheath: 250–270 μm long on A. spinifer   and 215–230 μm long on A. pharetrata   , and (iii) the shape of the anal opening – possibly much larger and wider in A. pharetrata   .

ANIC

Australian National Insect Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Eriococcidae

Genus

Apiomorpha

Loc

Apiomorpha pharetrata (Schrader)

Hodgson, Chris 2020
2020
Loc

Brachyscelis pharetrata

Brachyscelis pharetrata Schrader 1863, 3
Loc

Apiomorpha pharetrata (Schrader)

Cockerell 1896c, 328