Coloradoa heinzei (Borner)

Mehrparvar, Mohsen & Rezwani, Ali, 2007, A new species of Macrosiphoniella and redescription of Coloradoa heinzei (Hemiptera: Sternorrhyncha: Aphididae) as a new record in Iran, Zootaxa 1634, pp. 61-68 : 65-68

Coloradoa heinzei (Borner)

( Figs. 14–20 & 22, Table 2)

Lidaja heinzei Borner, 1952

Apterous viviparous female (based on 12 examined specimens): Body color green; small, 0.77–0.88 mm long; apices of antenna and SIPH, and tarsi rather dark; base of SIPH and cauda pale; dorsal hairs numerous, fanshaped; marginal tubercles absent; frons slightly convex, lateral frontal tubercles undeveloped; antenna 6 segmented, 0.53–0.63 times as long as body; secondary rhinaria absent; PT 1.44–1.76 times longer than the ANTVIb; URS pointed with concave margins, 1.24–1.40 times longer than 2HT; first tarsal segments with 3– 3–2 hairs; SIPH subcylindrical about 0.09 times as long as body, 0.78–1.0 times as long as cauda, 0.83–0.97 times as long as URS; cauda triangular, slightly constricted at base, 0.88–1.06 times as long as URS, with 5 hairs.

In this paper C. heinzei has been redescribed because Iranian specimens have some morphological differences from previously described materials by Stroyan (1979) and Heie (1992). These differences are as follows:

Body length of Iranian C. heinzei is 0.77 – 0.88 mm while in the other materials it is 1.0 – 1.65 mm. The other difference is ratio between SIPH and cauda length. In Iranian samples it is between 0.78 – 1.0 times but in other materials the range is 0.58 – 0.79 times. Based on Stroyan (1979) SIPH is 0.64 – 0.91 times and Cauda 1.0–1.3 times as long as URS, but in our specimens these ratios is between 0.83 – 0.97 and 0.88 – 1.06 times respectively. Based on Heie (1992) the antenna is 0.6–0.7 times and SIPH about 0.07 times as long as body but in Iranian specimens these are 0.53 – 0.63 and 0.09 times respectively.

These morphological differences especially smaller body size in Iranian materials might be because of development on an unfavourable host or local adaptation under conditions of geographical separation. Host and distribution. Coloradoa heinzei collected on Artemisia aucheri (Asteraceae) in 6 October 2006. The species is known from one locality in Sekonge, east of Kerman Province, Iran, N30° 00´23.3´´ E57° 28´19.9´´, Altitude: 2474 m.

TABLE 2. Biometric data of Coloradoa heinzei .

Character Apterous vivipara (n=12)

Length (mm)

Body 0.77–0.88 Antenna 0.45–0.49 ANTIII 0.07–0.09 ANTIV 0.05–0.06 ANTV 0.07 ANTVIb 0.07–0.08 PT 0.12–0.13 URS 0.07–0.09 2HT 0.06 SIPH 0.07 Cauda 0.07–0.09 No. of hairs

Cauda 5 No. of rhinaria

ANTIII 0 ANTIV 0 ANTV 0

Figures

FIGURES 14 – 20. Coloradoa heinzei, Apterous viviparous female: 14, dorsal and ventral surface of head; 15, siphunculus (SIPH); 16, cauda; 17, ultimate rostral segment (URS); 18, antenna; 19, dorsal abdominal hairs; 20, hind tarsi. Scale bars, 0.1 mm. Scale bars A for Figs. 14 & 18 and B for Figs. 15 – 17, 19 & 20. (Drawn by senior author).