Zootaxa, Hemiptera, Sternorrhyncha, Aphididae, Macrosiphoniella

Macrosiphoniella madeirensis Aguiar & Ilharco sp. nov. (Hemiptera: Sternorrhyncha: Aphididae) from Madeira Island

A. M. FRANQUINHO AGUIAR1 & FERNANDO ALBANO ILHARCO2 1Laboratório Agrícola da Madeira, Estrada Engº Abel Vieira, 9135-260 CAMACHA, Madeira, Portugal. E-mail: [email protected] 2Departamento de Protecção de Plantas, Entomologia, Estação Agronómica Nacional, 2784-505 OEIRAS, Portugal

Abstract

A new species of the aphid genus Macrosiphoniella del Guercio (M. madeirensis sp. nov.) is described from material collected on Helichrysum melaleucum in Madeira Island. Macrosipho- niella helichrysi Remaudière is redescribed.

Key words: Aphids, Madeira Island, Macrosiphoniella, new species, Helichrysum melaleucum

Introduction

The new species Macrosiphoniella madeirensis is similar to M. helichrysi Remaudière, from which however it can easily be separated if one uses the original description by Remaudière (1952). As M. helichrysi from Portugal is somewhat different from the specimens of France described by Remaudière (1952), we studied also material from Spain and from Italy. The Macrosiphoniella from Madeira Island is a new species, which we describe here. For comparison, we also redescribe M. helichrysi

Macrosiphoniella madeirensis Aguiar & Ilharco, sp. nov.

Apterous viviparous female (Fig. 1). Measurements from 33 specimens (Table 1). Body 1.95–2.87 mm long, with head, antennae, rostrum, pronotum, mesonotum, legs, siphunculi, and cauda black. Abdominal dorsum membranous, with pairs of marginal, pleural, spinal, and antesiphuncular black sclerites; spinal sclerites on 2nd, 3rd, and 4th tergites usually larger than the others and those on 3rd and 4th tergites often fused into two larger

Accepted by C. Schaefer: 16 Feb 2005; published: 25 Feb. 2005 1 ZOOTAXA plates; 8th abdominal tergite with a transverse black band. Frontal tubercles of head little 867 developed. Antennae 2.06–2.51 mm long, 0.82–1.06 times as long as body; III antennal segment 0.58–0.73 mm long, with 19–46 secondary rhinaria irregularly scattered on the 0.5–0.7 basal part of the segment; IV antennal segment 0.39–0.52 mm long and 1.22–1.45 times as long as V, this 0.29–0.38 mm long; base of VI segment 0.12–0.15 mm long; processus terminalis 0.49–0.60 mm long, 3.47–4.38 times as long as base of VI and 0.74–0.95 times as long as III. Primary rhinaria ciliate. Rostrum long, reaching to abdominal sternites 3–4. Apical rostral segment stiletto-shaped, 0.19–0.22 mm long, with apex distinctly rostrate, 3.80–5.25 times as long as its basal width, 1.43–1.75 times as long as 2nd joint of hind tarsus (this 0.12–0.15 mm long) and 1.33–1.69 times as long as base of antennal segment VI. Secondary hairs of apical rostral segment 5–7 in number, rarely 4 or 8, the longest 47–70 µm; primary hairs placed on apical third of segment, being two pairs near apical rostrate part and one pair distally placed, sometimes between middle and apical third of segment. Siphunculi tapering, without basal constriction, 0.33–0.49 mm long, with reticulation on apical 55–65%, 0.15–0.20 times as long as body and 0.94–1.15 times as long as cauda. Cauda elongate, 0.32–0.44 mm long, constricted at basal third, 2.53–3.33 times as long as its basal width and 1.52–2.15 times as long as the apical rostral segment. Caudal hairs 13–23. Subgenital plate with 2–4 primary hairs and 11–14 (rarely 10–15) marginal ones; sometimes with a supernumerary hair. First tarsal segments with 3, 3, 3 hairs. Mar- ginal tubercles absent. Dorsal hairs very long, acute, blunt, or slightly capitate; posterior cephalic hairs and spinal on 3rd abdominal tergite about 100–113 µm long, rarely shorter (up to 86 µm); hairs on 8th abdominal tergite 4–6 rarely 7, 93–125 µm long. Pronotum with 8–14 hairs. Tibial hairs stout, with soft apex. Antennal hairs on III segment 33–45 µm long, with soft apex. Ventral hairs shorter than dorsal ones, mostly blunt but some up to finely pointed. Color when alive: pale gray, covered with a fine whitish waxy excretion, this absent on a bright black somewhat quadrangular spot on center of abdominal dorsum and on a vari- able degree on abdominal tergites 5 to 8, especially the 6th and 8th where the siphunculus and cauda are inserted (Fig. 2). Alate viviparous female (Fig. 3). Measurements from 10 specimens (Table 2). Body 2.21–2.70 mm long. Antennae 2.38–2.69 mm long, 0.98–1.09 times as long as body; III antennal segment 0.72–0.85 mm long, with 60–82 secondary rhinaria on entire length of segment; IV antennal segment 0.45–0.54 mm long, 1.25–1.41 times as long as V, with 0–3 secondary rhinaria, when present, on basal two thirds of segment; V antennal segment 0.34–0.44 mm long, without secondary rhinaria; base of VI segment 0.12–0.15 mm long; processus terminalis 0.56–0.63 mm long, 3.80–4.67 times as long as base of VI and 0.74– 0.85 times as long as III. Apical rostral segment 1.50–1.57 times as long as 2nd joint of hind tarsus (this 0.13–0.14 mm long) and 1.36– 1.68 times as long as base of antennal segment VI. Secondary hairs of apical rostral segment 6–7, rarely 8, the longest 50–60 µm. Siphunculi subcylindrical, 0.35–0.45 mm long, with reticulation on apical 53–61%, 0.14–

2 © 2005 Magnolia Press AGUIAR & ILHARCO 0.19 times as long as body and 1.03–1.33 times as long as cauda. Cauda 0.29–0.37 mm ZOOTAXA long, slender, 2.42–3.08 times as long as its basal width and 1.38–1.68 times as long as 867 apical rostral segment. Caudal hairs 15–22. Subgenital plate with 3–4 primary hairs and 9– 13 marginal ones. Posterior cephalic hairs 63–88 µm long; spinal hairs on 3rd abdominal tergite 70–106 µm long; hairs on 8th abdominal tergite 4–5, 75–97 µm long. Antennal hairs on III segment 30–38 µm long. Otherwise as in apterous viviparous female. Host plant, locality, and type depositories. Macrosiphoniella madeirensis lives on the terminal parts of the shoots and on the leaf petioles of Helichrysum melaleucum Rchb. ex. Holl, an endemic Compositae of Madeira Island. The description of M. madeirensis is based on specimens of the following two samples: (1) S. Vicente, Boaventura, Vereda da Entrosa (Fig. 4), 12.II.2000, col. A.M.F. Agu- iar, register number (ICLAM) A716; (2) Santana, Arco de S. Jorge, 14.II.2001, col. A.M. F. Aguiar & J. Jesus, register numbers A744 and CAEAN 6457.

FIGURE 1 — Macrosiphoniella madeirensis sp. nov.: apterous viviparous female (bar = 0.71 mm).

FIGURE 2 — Macrosiphoniella madeirensis sp. nov.: habitus of living apterous females.

FIGURE 3 — Macrosiphoniella madeirensis sp. nov.: alate viviparous female (bar = 0.79 mm).

No. Body Antennae A.r.s. 2nd Siph. Cauda Caudal Sec. j.h.t. hairs rhin. III IV V VI Total III

1 2.25 0.61 0.43 0.34 0.14+0.56 2.25 0.21 0.14 0.40 0.38 23 46 & 33

2 2.38 0.60 0.44 0.33 0.13+0.55 2.25 0.19 0.13 0.35 0.35 20 39 & 31

3 2.07 0.59 0.40 0.31 0.14+0.49 2.06 0.20 0.12 0.36 0.34 16 32 & 31

4 2.40 0.71 - - - - 0.22 0.15 0.45 0.42 22 43 & -

5 2.10 0.63 0.40 0.31 0.13+0.55 2.23 0.21 0.12 0.38 0.36 17 33 & 30

6 1.95 0.60 0.39 0.29 0.12+ - - 0.20 0.13 0.34 0.35 17 28 & -

7 2.87 0.68 0.48 0.35 0.15+0.54 2.36 0.22 0.14 0.47 0.41 18 38 & 32

8 2.50 0.69 0.52 0.36 0.15+0.52 2.38 0.22 - 0.45 0.44 19 34 & 37

9 2.87 0.73 0.50 0.38 0.15+0.58 2.51 - - 0.49 0.43 15 43 & 36

10 2.29 0.66 0.48 0.34 0.14+0.49 2.28 0.21 0.13 0.45 0.40 18 37 & 38

11 1.98 0.58 0.40 0.31 0.13+0.52 2.10 0.21 - 0.33 0.32 19 - & 34

12 2.63 0.64 0.44 0.36 0.15+ - - 0.22 0.14 0.42 0.40 - - & 32

13 2.45 0.63 - - - - 0.21 0.14 0.40 0.37 17 26 & 19

14 2.59 0.65 0.44 0.35 0.15+0.53 2.28 0.20 0.14 0.40 0.37 16 41 & 34

15 - 0.65 0.43 0.35 0.13+0.57 2.37 0.21 0.14 0.40 0.40 13 29 & 32

16 2.50 0.69 0.45 0.36 0.14+0.55 2.38 0.21 0.13 0.43 0.40 19 33 & 38

17 2.75 0.66 0.47 0.35 0.13+0.55 2.35 0.21 0.14 0.45 0.41 17 38 & 35

18 2.44 0.61 0.45 0.31 0.14+0.58 2.28 0.20 0.14 0.42 0.43 20 38 & 33

19 2.50 0.66 0.46 0.36 0.14+0.56 2.38 0.21 0.14 0.43 0.42 14 34 & -

20 2.63 0.66 0.45 0.36 0.14+0.60 2.35 0.22 0.14 0.43 0.38 17 37 & 39

21 2.25 0.58 0.39 0.30 0.13+0.54 2.09 0.20 0.13 0.33 0.35 17 24 & 28

Nos. 1–3, from sample A716. Nos. 4–21, from sample 6457. No. 20, holotype. A.r.s. — apical rostral segment. 2nd j.h.t. — 2nd joint of tarsus. Siph. — siphunculus. Sec. rhin. — secondary rhinaria.

A NEW MACROSIPHONIELLA © 2005 Magnolia Press 5 ZOOTAXA TABLE 2. Measurements of Macrosiphoniella madeirensis sp. nov. alate viviparous females (mm). 867 No. Body Antennae A.r.s. 2nd Siph. Cauda Caudal Sec. rhin. IV j.h.t. hairs III III IV V VI Total

1 2.56 0.81 0.54 0.43 0.15+ - - 0.22 0.14 0.43 0.35 20 69 & 74 0 & -

2 2.28 0.75 - - - - 0.21 0.14 0.35 0.34 16 74 & 69 - -

3 2.48 0.73 0.48 0.34 0.14+0.60 2.43 0.20 0.13 0.35 0.29 15 67 & 60 0 & 0

4 2.38 0.79 0.50 0.38 0.15+ - - 0.22 0.14 0.45 0.36 18 66 & 71 - & 0

5 2.29 0.72 0.46 0.34 0.12+0.56 2.38 0.19 - 0.37 0.31 17 73 & 70 0 & 2

6 2.33 0.74 0.45 0.36 0.14+0.63 2.50 0.19 0.14 0.40 0.30 17 75 & 76 0 & 0

7 2.21 0.74 0.45 0.36 0.14+0.58 2.41 0.21 0.14 0.38 0.29 18 82 & 77 0 & 0

8 2.60 0.76 0.53 0.38 0.15+0.57 2.54 0.21 0.14 0.41 0.34 17 78 & 72 1 & 3

9 2.68 0.85 0.54 0.41 0.15+0.63 2.69 0.22 0.14 0.45 0.37 22 75 & 77 0 & 2

10 2.70 0.82 0.50 0.38 - - 0.22 0.14 0.43 0.36 16 80 & 69 3 & 2

Nos. 1–10, from sample 6457. A.r.s. — apical rostral segment. 2nd j.h.t. — 2nd joint of hind tarsus. Siph. — siphunculus. Sec. rhin. — secondary rhinaria

FIGURE 4 — Typical habitat of Macrosiphoniella madeirensis sp. nov. and of its host plant Heli- chrysum melaleucum, on the North coast of Madeira (photo by Paulo Abreu).

6 © 2005 Magnolia Press AGUIAR & ILHARCO The holotype is specimen no. 20 of the type series (an apterous viviparous female on ZOOTAXA slide 6) (Table 1). It is kept in the Aphid Collection of Estação Agronómica Nacional 867 (CAEAN). Paratypes on slides are kept also in CAEAN and in Insect Collection of Labo- ratório Agrícola da Madeira (ICLAM). Paratypes within alcohol will be sent to the aphid collections of The Natural History Museum (Dr. Paul Brown), London, England; the Museum National d’Histoire Naturelle (Dr. G. Remaudière), Paris, France; the University of León (Dr. J. M. Nieto Nafria), León, Spain; and the Università degli Studi de Catania (Dr. S. Barbagallo), Sicily, Italy. The specific name madeirensis is preferred to maderensis according to the Interna- tional Code of Zoological Nomenclature (1985), Appendix C (Latinization of geographical and proper names): “The geographical and proper names of nations that employ the Latin characters should be written with the orthography of the country in which they orig- inate”

Macrosiphoniella helichrysi Remaudière

Measurements, amounts, and ratios referred by Remaudière (1952) and not observed in the material studied by us from Portugal, Spain, and Italy, are indicated here in parentheses. Apterous viviparous female. Measurements from 61 specimens (Table 3). Body 1.44– 2.63 mm long. Antennae (1.4) 1.71–2.38 mm long, 0.83–1.28 times as long as body; III antennal segment 0.37–0.65 mm long, with (3) 9–42 secondary rhinaria scattered on 0.5– 0.8 basal part of segment; IV antennal segment 0.29–0.44 mm long and 0.97–1.29 times as long as V, this 0.25–0.39 mm long; base of VI segment 0.13–0.19 mm long; processus terminalis 0.42–0.63 mm long, 3.18–4.00 times as long as base of VI and 0.81–1.15 times as long as III. Primary rhinaria ciliate. Apical rostral segment 0.16–0.21 mm long, 4.00– 5.25 times as long as its basal width, 1.20–1.54 (1.56) times as long as 2nd joint of hind tarsus (this 0.12–0.15 mm long) and 1.05–1.54 times as long as base of antennal segment VI. Secondary hairs of apical rostral segment 5–7 in number, longest 40–70 µm; primary hairs with two pairs near the apical rostrate part of segment and one pair on middle third, near half-length of segment, rarely between middle and apical third of segment. Siphun- culi without basal constriction, 0.24–0.55 mm long, with reticulation on apical 50–64%, 0.15–0.25 times as long as body and 1.04–1.46 times as long as cauda. Cauda 0.22–0.40 mm long, 2.17–3.10 times as long as its basal width and 1.28–1.90 times as long as the apical rostral segment. Caudal hairs 8–20. Subgenital plate with 2–4 primary hairs and 7– 13 marginal ones; sometimes with 1–2 supernumerary hairs. First tarsal segments with 3,3,3 hairs. Marginal tubercles absent. Dorsal hairs long, usually blunt to subcapitate but some acute; posterior cephalic hairs 75–119 µm long; spinal hairs on 3rd abdominal tergite 83–125 µm long; hairs on 8th abdominal tergite 4–6, rarely 3, 86–128 µm long. Pronotum with 7–10 hairs. Tibial hairs stout, with several kinds of apex: soft, acute, blunt, subcapitate. Antennal hairs on III segment 29–49 µm long, also with several kinds of apices. Ven-

A NEW MACROSIPHONIELLA © 2005 Magnolia Press 7 ZOOTAXA tral hairs shorter than dorsal ones, mostly blunt but some acute. 867 Alate viviparous female. Measurements from 39 specimens (Table 4). Body 1.81–2.48 mm long. Antennae 1.81–2.67 mm long, 0.95–1.15 times as long as body; III antennal segment 0.50–0.72 mm long, with 32–68 secondary rhinaria on the whole length of segment; IV antennal segment 0.30–0.50 mm long, 0.94–1.29 times as long as V, usually without secondary rhinaria but rarely with 1–4 (in the Portuguese material) on basal half of the segment; V antennal segment 0.29–0.45 mm long, without secondary rhinaria; base of VI segment 0.13–0.19 mm long; processus terminalis 0.45–0.68 mm long, 3.00–4.00 times as long as base of VI and 0.77–1.03 times as long as III. Apical rostral segment 0.18–0.21 mm long, 3.80–5.25 times as long as its basal width, 1.36–1.58 times as long as 2nd joint of hind tarsus. Secondary hairs of the apical rostral segment usually 6, rarely 5 or 7, the longest 32–75 µm. Siphunculi 0.30–0.46 mm long, with reticulation on apical 43–64%, 0.15–0.22 times as long as body and 1.25–1.64 times as long as cauda. Cauda 0.22–0.32 mm long, 1.92–2.82 times as long as its basal width and 1.10–1.60 times as long as the apical rostral segment. Caudal hairs 8–18. Dorsal hairs shorter than in apterous viviparous females; posterior cephalic hairs 54–88 µm long; spinal hairs on 3rd abdominal tergite 65– 100 µm long; hairs on 8th abdominal tergite 4–5, 63–106 µm long. Antennal hairs on III segment 25–43 µm long. Ventral hairs mostly pointed. Otherwise as in apterous viviparous females. Material studied. PORTUGAL (33 apterous viviparous females and 29 alate viviparous females). Tavira island, 21.IV.1978, Helichrysum italicum (Roth) G. Don fil. ssp. picardi (Boiss. & Reuter) Franco, col. F. A. Ilharco, J. Pinto & R. Pontes, register number CAEAN 2489. Silves, Boião, 26.V.1979, H. stoechas (L.) Moench, col. F. A. Ilharco, J. Pinto, J. J. Vieira & R. Pontes, register number CAEAN 2946. Santiago do Cacém, Alv- alade, 28.VI.1979, H. italicum picardi, col. J. Pinto & R. Pontes, register number CAEAN 2996. Castro Daire, Arcas, 27.V.1980, H. stoechas, col. F. A. Ilharco, J. Pinto & R. Pontes, register number CAEAN 3536c. Grândola, 11.VI.1980, H. italicum picardi, col. A. Gomes & J. Pinto, register number CAEAN 3557. Aljezur, Monte Clérigo, 29.VII.1980, H. italicum picardi, col. F. A. Ilharco, J. Pinto & R. Pontes, register number CAEAN 3680. Ses- imbra, 27.VI.1984, H. italicum picardi, col. A. Gomes & F. Belard da Fonseca, register number CAEAN 4200. Silves, April 1991, one alate vagrant from a suction trap, leg. Maria Odília de Boelpaepe, register number CAEAN 5958. SPAIN (15 apterous viviparous females and 6 alate viviparous females). Puerto de Perales, 11.VI.1972, H. stoechas, register number 6a–9. San Esteban dela Valdueza, 22.VI.1978, H. stoechas, register number LE-436. Furo del Sabinal, 24.V.1980, H. stoechas, register number AL-45. El Bosque, Cádiz, 14.VI.1984, H. stoechas, register number CA-180. Pto. de la Mora, 26.VI.1984, H. stoechas, register number GR-128. ITALY (13 apterous viviparous females and 4 alate viviparous females). Locality?, 23.XII.1968, H. italicum, without register number. Sardegna, S. Anna Arresi, Porto Pino, 14.V.1985, H. italicum, register number 2757.

8 © 2005 Magnolia Press AGUIAR & ILHARCO TABLE 3. Measurements of Macrosiphoniella helichrysi apterous viviparous females (mm). ZOOTAXA 867 No. Body Antennae A.r.s. 2nd Siph. Cauda Caudal Sec. III IV V VI Total j.h.t. hairs rhin. III 1 1.84 0.57 0.40 0.33 0.15+0.58 2.19 0.20 0.13 0.41 0.28 9 22 & 22 2 2.21 0.55 0.37 0.33 0.15+0.53 2.09 0.19 0.14 0.37 0.29 12 15 & 17 3 2.00 0.49 0.33 0.28 0.14+0.47 1.88 0.17 0.13 - 0.31 10 13 & 16 4 1.85 0.52 0.35 0.31 0.16+0.50 2.00 0.18 - 0.37 0.29 11 13 & 12 5 2.29 0.60 0.41 0.38 0.15+0.50 2.16 0.21 0.14 0.46 0.38 19 - & 23 6 2.44 0.63 0.44 0.39 0.17+0.63 2.37 0.21 0.15 0.45 0.37 14 21 & 23 7 2.13 0.63 0.40 0.36 0.15+0.58 2.28 0.20 0.15 0.43 0.33 13 34 & 26 8 1. 88 0.56 0.34 0.30 0.15+0.54 2.00 0.18 0.12 0.30 0.27 9 25 & 30 9 1.44 0.44 0.33 0.29 0.14+0.50 1.84 0.17 0.12 0.25 0.23 9 24 & 24 10 2.00 0.65 0.34 0.33 0.16+0.60 2.26 0.18 0.13 0.35 0.27 10 17 & 20 11 1.88 0.50 0.32 0.27 0.14+0.51 1.88 0.16 - 0.30 0.24 9 9 & 9 12 - 0.45 0.30 0.29 0.15+0.51 1.79 0.17 0.12 0.26 0.25 12 12 & 14 13 2.30 0.58 0.41 0.35 0.19+0.54 2.25 0.20 0.14 0.40 0.35 14 16 & 25 14 2.31 0.59 0.38 0.37 0.18+0.58 2.25 0.20 0.14 0.42 0.34 14 26 & 29 15 2.40 0.61 0.40 0.36 0.15+0.56 2.20 0.21 0.14 0.46 0.39 19 42 & 40 16 2.30 0.60 0.40 0.36 0.16+0.51 2.18 0.20 0.14 0.45 0.35 17 42 & 33 17 2.19 0.54 0.36 0.33 0.16+0.53 2.05 0.20 0.13 0.40 0.30 10 13 & 16 18 1.88 0.51 0.38 0.33 0.17+0.56 2.10 0.20 0.13 0.38 0.28 10 16 & 16 19 1.70 0.48 0.29 0.28 0.13+0.42 1.78 0.18 0.12 0.35 0.28 18 29 & 29 20 1.78 0.49 0.30 0.31 0.14+0.45 1.88 0.18 0.12 0.39 0.28 14 15 & 16 21 2.25 0.65 0.42 0.36 0.17+0.60 2.38 0.20 0.14 0.41 0.33 11 37 & 30 22 1.80 0.45 0.32 0.31 0.14+0.45 1.85 0.19 0.13 0.41 0.32 17 14 & 18 23 2.63 0.63 0.41 0.39 0.15+0.49 2.23 0.21 - 0.55 0.40 20 36 & 35 24 1.63 0.40 0.30 0.25 0.13+0.50 1.71 0.18 0.12 0.25 0.23 8 15 & 15 25 1.60 0.37 0.29 - - - 0.17 0.12 0.24 0.22 11 13 & 14 26 1.84 0.48 0.32 0.31 0.15+0.55 1.95 0.18 0.13 0.35 0.26 11 10 & 12 27 1.66 0.47 0.33 0.33 0.15+0.54 1.94 0.17 - 0.36 0.26 10 13 & 12 28 1.63 0.43 0.29 0.28 0.13+0.52 1.81 0.18 0.12 0.28 0.23 9 10 & 15

Nos. 1–7, from Spain: 1 — Sample 6a-9. 2 — Sample LE-436. 3,4 — Sample AL-45. 5 — Sample CA-180. 6,7 — Sample GR-128 Nos. 8–14, from Italy: 8, 9, 10, 11, 12 — Sample without register number. 13, 14 — Sample 2757. Nos. 15–28, from Portugal: 15, 16 — Sample 2489. 17, 18 — Sample 2946. 19, 20 — Sample 2996. 21 — sample 3536c. 22, 23 — Sample 3557. 24, 25 — Sample 3680. 26, 27, 28 — Sample 4200. A.r.s. — apical rostral segment. 2nd j.h.t. — 2nd joint of hind tarsus. Siph. — siphunculus. Sec. rhin. — secondary rhinaria.

A NEW MACROSIPHONIELLA © 2005 Magnolia Press 9 ZOOTAXA TABLE 4. Measurements of Macrosiphoniella helichrysi alate viviparous females (mm). 867 No. Body Antennae A.r.s 2nd Siph. Cauda Caudal Sec. IV III IV V VI Total j.h.t. hairs rhin. III 1 2.48 0.66 0.45 0.41 0.17+0.66 2.50 0.20 0.14 0.46 0.28 12 64 & 53 0 & 0 2 2.19 0.72 0.50 0.45 0.18+ - - - 0.14 0.45 0.28 11 54 & 52 0 & 0 3 2.33 0.65 0.39 0.35 0.15+0.59 2.25 0.20 0.14 0.35 0.24 9 37 & 44 0 & 0 4 - 0.70 0.50 0.44 0.19+0.68 2.67 0.21 - - - - 41 & - 0 & 0 5 2.18 0.71 0.49 0.39 0.18+ - - 0.21 0.15 0.42 0.28 12 53 & 53 - & 0 6 2.06 0.68 0.44 0.39 0.15+ - - 0.20 0.14 0.36 0.23 9 46 & 52 0 & 0 7 2.03 0.57 0.39 0.34 0.16+0.58 2.19 0.19 0.13 0.33 0.23 - 40 & 36 0 & 0 8 2.04 0.60 0.38 0.37 0.16+0.55 2.21 0.19 0.14 0.35 0.28 12 46 & 40 0 & 0 9 2.30 0.60 0.43 0.39 017+0.62 2.29 0.20 0.13 0.36 0.26 11 38 & 37 0 & 0 10 2.25 0.62 0.46 0.41 0.18+0.60 2.43 0.21 0.14 0.36 0.28 13 42 & - 0 & 0 11 2.25 0.65 0.37 0.36 0.15+0.50 2.19 0.20 0.13 0.38 0.29 14 58 & 65 3 & 1 12 2.12 0.58 0.38 0.34 0.13+0.48 2.06 0.20 0.13 0.35 0.28 17 54 & 50 0 & 0 13 2.20 0.66 0.43 0.39 0.16+0.56 2.34 0.20 0.14 0.40 0.30 15 51 & 51 3 & 4 14 1.94 0.61 0.38 0.35 0.15+ - - 0.20 0.13 0.34 0.22 8 35 & 35 0 & 0 15 2.04 0.63 0.36 0.36 0.15+0.58 2.26 0.20 0.14 0.40 0.25 10 40 & 38 0 & 0 16 2.41 0.63 0.38 0.36 0.16+ - - 0.20 - 0.35 0.25 9 39 & 32 0 & 0 17 2.09 0.63 - - 0.16+0.58 - 0.20 0.13 0.38 0.24 8 - & 36 - 18 1.91 0.50 0.30 0.29 0.14+0.45 1.81 0.18 - 0.32 0.23 16 42 & 48 0 & 0 19 1.84 0.57 0.33 0.34 0.13+0.49 2.00 0.18 0.12 0.37 0.27 18 49 & 48 1 & 1 20 1.81 0.55 0.31 0.30 0.14+0.47 1.94 0.18 0.13 0.40 0.25 14 53 & 54 1 & 3 21 2.05 0.60 0.39 0.38 0.16+ - - 0.20 0.13 0.45 0.32 17 60 & 57 0 & - 22 2.05 0.60 0.40 0.35 0.15+0.50 2.14 0.20 0.13 0.45 0.30 17 65 & 58 0 & 2 23 2.05 0.63 0.41 0.39 0.17+0.51 2.26 0.20 - 0.45 0.31 16 68 & 61 0 & 1 24 1.88 0.58 0.38 0.34 0.15+ - - 0.18 - 0.30 0.28 9 40 & 43 0 & 0 25 2.20 0.58 0.40 0.31 0.15+ - - 0.19 0.13 0.33 0.25 9 - & 47 - & 0 26 2.50 0.69 0.44 0.43 0.19+0.63 2.50 0.20 0.14 0.43 - 11 50 & 55 0 & 0

Nos. 1–6, from Spain: 1, 2 — Sample 6a-9. 3 — Sample CA-180. 4, 5, 6 — Sample GR-128 Nos. 7-10, from Italy: Sample 2757. Nos. 11–26, from Portugal: 11, 12, 13 — Sample 2946. 18, 19, 20 — Sample 2996. 21, 22, 23 — Sample 3557. 24, 25 — Sample 3680. 26 — Sample 5958. A.r.s. — apical rostral segment. 2nd j.h.t. — 2nd joint of hind tarsus. Siph. — siphunculus. Sec. rhin. — secondary rhinaria.

10 © 2005 Magnolia Press AGUIAR & ILHARCO Distribution. Southern Europe, Middle East, and South Africa (Remaudière 1952; ZOOTAXA Roberti1959; Tuatay and Remaudière 1964; Barbagallo 1969, 1986; Nieto Nafria 1974; 867 Barbagallo and Stroyan 1980; Remaudière et al. 1985; Millar 1990; Lampel 2001; Starý et al. 2001). Note. Macrosiphoniella helichrysi is very well illustrated in Remaudière (1952) and Roberti (1959).

Conclusions Macrosiphoniella madeirensis is the second aphid species certainly endemic to Macarone- sia. The other species is Acyrthosiphon supranubius from Canary Islands, described by Carnero & Nieto Nafria (1995) from material collected on Spartocytisus supranubius (L. fil.) Santos. Populations should be used to separate M. madeirensis from M. helichrysi, as there is overlap in almost all the morphological characteristics of both species. The following key will help separate M. madeirensis from M. helichrysi.

Apterous viviparous females - Apical rostral segment with primary hairs placed on the apical third of the segment, there being two pairs near the apical rostrate part and one pair distally placed, sometimes between the middle and the apical third of the segment; in length it is 1.43–1.75 times as long as 2nd joint of hind tarsus and 1.33–1.69 times as long as base of antennal segment VI. Antennae with III segment 0.58–0.73 mm long and IV 1.22–1.45 times as long as V; processus terminalis 3.47–4.38 times as long as base of VI. Siphunculi 0.94–1.15 times as long as cauda, this one 1.52–2.15 times as long as apical rostral segment. Pronotum with 8–14 hairs ...... M. madeirensis - Apical rostral segment with two pairs of primary hairs placed near the apical rostrate part of the segment and one pair on the middle third, near half-length of segment, rarely between the middle and the apical third of the segment (as in M. madeirensis); in length it is 1.20–1.54 times as long as 2nd joint of hind tarsus and 1.05–1.54 times as long as base of antennal segment VI. Antennae with III segment 0.37–0.65 mm long and IV 0.97–1.29 times as long as V; processus terminalis 3.18–4.00 times as long as base of VI. Siphunculi 1.04–1.46 times as long as cauda, this one 1.28–1.90 times as long as apical rostral segment. Pronotum with 7–10 hairs ...... M. helichrysi

Alate viviparous females - Apical rostral segment with primary hairs placed on the apical third of the segment, with two pairs near the apical rostrate part and one pair distally placed, sometimes between the middle and the apical third of the segment; in length it is 1.36–1.58 times as long as base of antennal segment VI. Antennae with III segment 0.72–0.85 mm long, with 60–82 secondary rhinaria; IV segment 1.25–1.41 times as long as V; processus terminalis 3.80–4.67 times as long as base of VI. Siphunculi 1.03–1.33 times as long as cauda, this one with 15–22 hairs and 1.38–1.68 times as long as apical rostral segment ...... M. madeirensis - Apical rostral segment with two pairs of primary hairs placed near the apical rostrate part of the segment and one pair on the middle third, near half-length of segment, rarely between the mid-

A NEW MACROSIPHONIELLA © 2005 Magnolia Press 11 ZOOTAXA dle and the apical third of the segment (as in M. madeirensis); in length it is 1.05–1.54 times as 867 long as base of antennal segment VI. Antennae with III segment 0.50–0.72 mm long, with 32– 68 secondary rhinaria; IV segment 0.94–1.29 times as long as V; processus terminalis 3.00– 4.00 times as long as base of VI. Siphunculi 1.25–1.64 times as long as cauda, this one with 8– 18 hairs and 1.10–1.60 times as long as apical rostral segment ...... M. helichrysi

Acknowledgements

The authors are grateful to: Dr. J. M. Nieto Nafria, Department of Animal Biology, Uni- versity of León, Spain, and Dr. S. Barbagallo, Dipartimento di Scienze e Tecnologie Fito- sanitarie, Università degli Studi di Catania, Sicily, Italy, for the loan of slides containing M. helichrysi; to Dr. Maria Odília de Boelpaepe, Direcção Geral de Protecção das Cultu- ras, Lisbon, Portugal, Mr. Alexandre Gomes, Mr. Júlio Pinto, Mr. F. Belard da Fonseca, and Mr. R. Pontes, Estação Agronómica Nacional (E.A.N.), Oeiras, Portugal, for the offer of samples containing M. helichrysi. Thanks are also due to the late Engº A. R. Pinto da Silva and the late Mr. Manuel da Silva, E.A.N., for the identification of some host plants.

References

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