Antecerococcus longipilosus (Archangelskaya)

Chris J. Hodgson & Douglas J. Williams, 2016, (Hemiptera: Sternorrhyncha, Coccomorpha) with particular reference to species from the Afrotropical, western Palaearctic and western Oriental Regions, with the revival of Antecerococcus Green and description of a new genus and fifteen new species, and with ten new synonomies, Zootaxa 4091 (1), pp. 1-175: 78-80

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Antecerococcus longipilosus (Archangelskaya)

comb. nov.

Antecerococcus longipilosus (Archangelskaya)   , comb. nov.

( Fig. 28 View FIGURE 28 )

Cerveoccus longipilosus Archangelskaya 1930: 81   (misspelling of genus name).

Cercococcus longipilosus (Archangelskaya)   ; Archangelskaya 1931: 78–79. Change of combination. Cerrococcus longipilosus (Archangelskaya)   ; Kiritchenko 1936: 70. Misspelling of genus name. Ceracoccus longipilosus (Archangelskaya)   ; Kaussari 1957: 2. Misspelling of genus name.

Type details. TURKMENISTAN, Kopet-Dag, Firyuza Gorge, on Lactuca viminea   ( Asteraceae   ), 31.viii. 1928, A. Archangelskaya. Depository: ZIAS: lectotype (designated by Danzig 1998: 306; ZIAS no. 189 – 38) + 1 paralectotype adf on 1 slide and 1 / 3 adff with same collection data as lectotype but without type label.

Material studied. IRAN, vicinity of Teheran, on Chondrilla juncea   L. ( Asteraceae   ), 1.x. 1946 (ZIAS, 168 – 49): 1 / 1 adf (fair, split into dorsum and venter). GREECE, Voula, Görögország, on Artemisia austriaca   ( Asteraceae   ), 23.vii. 1983, Kozár (BMNH): 1 / 2 adff (f).

Note: description made from Iranian material, data for Greek specimen in [...] where different.

Mounted material. Body roundly pear-shaped, 2.6 mm long, 2.0 mm wide.

Dorsum. Eight-shaped pores of 2 sizes: (i) largest 20– 22 x 13–14 µm, abundant in swirls throughout dorsum anterior to cribriform plates [largest pores in radial bands across dorsum, with bands over each antenna, both spiracles and with 2 more bands over the abdomen, giving eight marginal groups], plus a line of 10–12 [8] on each side of abdomen; (ii) medium-sized 8 -shaped pores, each 11–15 x 6–8 µm, extremely sparse in areas covered by largest pores [about as frequent as larger pores] but common in a transverse band posterior to cribriform plates and on posterior abdominal segments; 8 -shaped pores absent from apex of stigmatic pore bands [a minute 8 -shaped pore present in most bands]. Simple pores each about 1.5 µm wide, extremely sparse, restricted to abdomen. Cribriform plates approximately round, but variable in size, each 11–20 µm wide, with a broad sclerotized margin and with moderate-sized micropores; present in a submedial group of 5–7 on each side of abdominal segment IV.

Dorsal setae very scarse. Tubular ducts each 25–28 µm long, abundant throughout. Anal lobes mainly lightly sclerotized but heavily sclerotized along inner margins; each lobe about 105 µm long with a long apical seta, probably at least 200 µm long (both broken); apical fleshy setae on dorsal surface each 45–55 µm long; more basal fleshy setae near middle of dorsal surface each 40–45 µm long; ventral setose setae near apex long, each 55 µm long; medioventral or outer margin setae each 20–30 µm long [not detected]; each lobe with 3 medium-sized 8 - shaped pores. Median anal plate about 43 µm long, 65 µm wide at base, with a serrate apex. Anal ring with 4 pairs of setae, each 120–125 µm long.

Venter. Medium-sized pores similar to those on dorsum, each 10–12.5 x 6.0– 7.5, forming a fairly broad band on head and thorax and in fairly broad transverse bands across more posterior abdominal segments. Simple pore not detected. Small bilocular pores oval, each 5–6 µm widest, present throughout head and thorax where 8 -shaped pores absent. Spiracular disc-pores small, each about 5.0 µm wide with 5 or 6 loculi, in a fairly large dense group near each spiracle, becoming less frequent in a narrow band 2–3 pores wide near margin, each band only broadening slightly on dorsum; posterior band bifurcated; each apical group without small 8 -shaped pores or setae [with a single pore in most apices]; also with 6 [4–6] quinquelocular disc-pores near each antenna. Small convex closed pores absent, but with some simple pores near spiracles. Multilocular disc-pores, each 6–7 µm wide with mostly 10 loculi, distributed on abdomen as follows: IX + VIII 10 on each side [10 on one side]; VII 10 marginally + 6–9 in a submarginal group [4–13 total per side], and then across more anterior segments, in bands mainly 2–4 wide: VI 10–13 [8–15] submarginally + 57 [65] medially; V 15–18 [14–18] submarginally + 85 [62–89] medially; IV 21–25 [17–20] submarginally + 91 [79–88] medially; III?– 19 [12–15] submarginally + 90 [58] medially; II about 25 [8–13] in a submarginal group and about 70 [23–24] medially; and on metathorax, 19 [7–15] in a marginal group and a very sparse band of about 11 [0] medially; absent from near each spiracle. Tubular ducts similar in length to those on dorsum but significantly narrower, present throughout. Ventral setae slightly more abundant than on dorsum but all setose and short; preanal setae each 65–100 µm long; companion setae long, each 25 µm long. Leg stubs absent. Antennae unsegmented, each 23–25 long, with 6 or 7 fleshy setae; without either an apical conelike point or a setal cavity. Clypeolabral shield about 165 µm long. Spiracular peritreme each large, 43-46 µm wide.

Comment. Lambdin and Kosztarab (1977) were unable to borrow material of this species and so did not redescribe it. Borchsenius’ (1960) illustration (fig. 75, p. 109, probably drawn from specimens from several different localities (I. Gavrilov, pers. comm.)) is excellent but it differs from the description given above as follows: he shows (i) rather more 8 -shaped pore swirls on the dorsum than found on these specimens; (ii) 17 large 8 -shaped pores on each side of the posterior abdominal segments (only 8–12 on the present specimens); (iii) larger dorsal 8 - shaped pores as being of two sizes, but the size of these pores on the present specimens was variable and there seemed to be no clear differences; (iv) medium-sized 8 -shaped pore on the dorsum as being more frequent than on the Iranian specimen but about as frequent as on the Greek specimens, (v) no multilocular disc-pores on the metathorax, but (vi) he does not show any multilocular disc-pores on abdominal segment VIII/IX whereas there were groups of pores extending almost all around the anterior margin of the anal ring on the Iranian specimens. The specimens from Greece were very similar to those from Iran but the dorsal 8 -shaped pores were sparser, forming radial or transverse bands across dorsum.

Antecerococcus longipilosus   can be recognised by the following combination of character-states: (i) dorsum with two sizes of 8 -shaped pores; (ii) largest 8 -shaped pores covering much of dorsum; (iii) apices of stigmatic bands with 0 or one small 8 -shaped pore; (iv) each margin of posterior abdominal segments with 8–12 large 8 - shaped pores; (v) cribriform plates in a group of 5–7 submedially on each side of abdominal segment IV; (vi) legstubs absent; (vii) posterior stigmatic pore bands bifurcated; (viii) stigmatic bands with abundant spiracular discpores; (ix) multilocular disc-pores abundant across all abdominal segments and metathorax; (x) dorsal fleshy setae on each anal lobe long, and (xi) antennae without either a cone-like apex or a setal cavity.

The adult female of A. longipilosus   falls within Group D in the key to species of Antecerococcus   , keying out close to A. delottoi   , A. hilli   and A. perowskiae   .