Longiunguis elisohethrrc, n.sp.
.{ new Sn'edish aphid (Ilem.) By Fne.l OssrANNrLssoN
Description: Apterous uioipatous lemale \l'ig. 1). Body spindle-shaped.
black or fuscous. Tergum alnost completely membranous. In cleared speci- mens, black or fuscous pigmentation is present on head, antennal segmenls
I, \', \'I and apices of III and I\', apical segments of rostrum, corae, femora (except basal lll-116i, apices of tibiae, tarsi, peritremes, "pteural" inter- segmental scleroiles, siphunculi, cauda, anal plate and subgenital plate.
A series of unpaired spinal pigmented spots is present on the thoracal and abdominal terga in many specimens but there is much individual variation in this detail, the spots of abd. segments \.I, \'II and YIII and of mesonotum being larger and more constantly present than those on lhe remaining se8- ments u'here they, if present, are often divided into smaller components.
Head with median frontal tubercle fairly well developed. Length of antennae about 3/7 of bod)' length. Length of processus terminalis about 3X that of basis of antennal segment VI (F'ig. 3). Antennal hairs with fine apices, longest hair on segment III about 1.2X basal diameter of lhe same segment (Fig.2).
Dorsal bodv hairs fine-pointed, comparativel)- long, the longest (on abdomi- nal segments YII and 1'III) a little more than 3X basal diameter of ante ral segment III. Also femora and tibiae with partly fairly long hairs. tr{ost ab- dominal segments (I-\rII) with smalt marginal tubercles but a complete sel
is rarely present. Rostrum short, not reaching 2nd coxae, terminal segmenl (Fig. 4) cordifomr, about half as long as 2nd joint of hind tarsus, with 2 pairs of secondary hairs. 8th abdominal tergum \yith .l---6 hairs. Siphunculi (Fig.
5) cylindrical, imbricated, about lwice as long as uredial diameter, consider- ably shorter than cauda (see Table 1), with a distinct flange- Cauda (Fig. 6)
finger-shaped, more or less distinctly constricted, with g-23 hairs. Number of caudal hairs in 30 specimens: 9, 13, 13, 13, 13, 13, 14, 14, 14, 15, 15, 15,
15, 16, 16, 16, 16, 16,
17, t7 , r7 ,
17,
17,
17, 17, 17, 18. 18, 19,23. First rarsat joints with 3, 3, 2 hairs. For measurements, see Table 1.
Ecological Nore. The insects were found in the panicles of Phragmites communis Trin.
?gpesr holotype, an apterous viviparous female (slide No. 15979) and paratypes (46 apterous viviparous females) collected in Sweden, Dalsland, Or, G6tesjtin f. \'IIl 1967, in the collection of the Department of Plant Patho- logy and Entomology, Uppsala.
Diagnosis. Using the key in Bodenheimer & Srvirski (1957, p. 221) one is
Entottol. Tt. .ltg-
E\.fl. 3- t.
,n47[130]
LONGIU\..GUIS TILISABIITHAE
T{BI-E I Irig. l. I-onridnguis eliidbeffioe. n.sp.
Aplerous Yiviparous female (holo- tyPe).
directed to Longiunguis donacis (Pass.), a lUediterranean species, but our insect differs from donacis by its relativety longer processus terminalis and the proportions of the antennal segments (cf. Sharma, 1966, p. 91) and by the shape of the cauda. The tergal pigmentation patlern is strikingly similar in both species. No E'ax secretion was obsen'ed in our malerial. Theobald (191E, pp. 289-290) described llgnlo2r?rus insignis l.: Longiunguis dorurcis)
as partlv covered with white farinose matter producing a characteristic pattern.
No Bodi' lenBth
Body rYid th
.{nl III \nt I\-
,{nt lnl
VI I
2 3 4 5 6
78 I
l0
2.51 2.6{
2.11 2.53 2.28 2.39 2.0{
2.39 2.32 2.01
1.23 1.27
t.t7 t.2i
t.o2 t.ti
0.95
l.2t l.l0
0.95
0.12 0.12 0.11 0.12 0.11 0,ll
0.1I 0.11 0.12 0.09
0.0s +0.27 0.r0 +0.29 0.10+0.28 0.09+0.2E 0.09+0.29 0.09+0.25 0.09+0.28 0.09+0.2E 0.10+0.28 0.08+0.22 (Ileasurements in mm. Specimen \o- I is the holotype.i
Entonol. Ts.,lro.88. H. i - t,
1067131
IIind tibi:r Cornicle Cauda
0.19 0.21 0.19 0-21 0.18 0.21 0.17 0.21 0.21 0.18
0.79 0.80 0.76 0.63 0.i7 0.60 0.70 0.79 0,ii
0.67
0.26 0.29 o.25 0.27 0.25 0.24 0.22 o.2i 0.26 0.20
0.18 0.18 0.17 0.22 0.20 0.19 0.19 0.21 0.22 0.12
0.1{
0.16 0.15 0.1ri 0.15 0.t+
0.
