Three new Asiatic species of Hyadaphis (Hemiptera, Aphididae)
Author
Nieto Nafría, Juan M.
Author
Hidalgo, Nicolas Pérez
Author
Brown, Paul A.
text
Zootaxa
2016
4109
3
332
344
journal article
39123
10.11646/zootaxa.4109.3.4
dd3c0242-67d9-43d2-9805-62824e1452bb
1175-5326
263689
2802A466-E4BD-41C6-A268-17BEA3B14EA4
Hyadaphis parva
sp. n.
Description. Apterous viviparous females
(
Figure 5
), from
8 specimens
, which have been measured. Colour when alive unknown. When mounted pale in general with very light brown head, antennae, legs, siphunculi, anal plate and cauda. Metric and meristic features in
Table 1
. Head smooth. Triommatidium quite well integrated in the eye. Frons softly undulate. Dorsal and ventral cephalic setae similar in length and shape, delicate and pointed. Antennal segments I and II with scarce and little marked lines and segments III–VI more or less imbricated. Antennal setae pointed and thicker than the cephalic setae. Rostrum reaches the middle legs coxae. Ultimate rostral segment triangular in shape. Setae on femora and tibiae pointed and thicker than the cephalic ones. Sternum of thoracic segments without pigmented sclerites (in two specimens a small and very pale prosternal sclerotisation is present). Thoracic and most of abdominal segments smooth; eight abdominal tergite with irregular lines of spinules. Marginal tubercles frequently present on prothorax and on one or two side of abdominal segments 2–6, rounded in appearance, being the biggest one the tubercle on 6. Dorsoabdominal setae scarce (8 on each anterior segment), pointed and thicker than cephalic setae. Siphunculi tapered in general with a small swelling on the third quarter of length, with lineal ornamentation and poor defined flange. Cauda broad triangular with setae restricted to the sides.
Biology.
From the collector’s annotations, the identification of the species of the host plant of
Hyadaphis parva
sp. n.
,
Andrachne
(?)
cordifolia
(Malpigiales:
Phyllanthaceae
, previously
Euphorbiaceae
), is doubtful, but it is evident that the host plant is not an umbeliferous species, because its vegetative aspect is very different to them. It is the first record of a
Hyadaphis
species on a species of plant belong to the order Malpigiales. There is no data about the life cycle of the species. The species is not frequent, as it has not been cited by Naumann-Etienne & Remaudière (1994), and no samples on this plant are in the register of Remaudière’s collection that is preserved in the
Muséum national d’Histoire naturelle
, which has been consulted for this purpose by one of the authors (JMNN).
FIGURE 5.
Hyadaphis parva
sp. n.
, apterous viviparous females: A habitus.
Distribution.
The
type
specimens of the new species were collected at Rawalakot (Azad Jammu and Kashmir province,
Pakistan
); approximately
1680 m
a.s.l.,
35° 51’ N
,
71° 48’ E
(from Gladstonefamily.net, 2015c). No conjecture over its geographic distribution can be made, beyond its presence in the mountains of
Pakistan
and perhaps neighbouring countries.
Types
.
Holotype
: viviparous apterous female,
PAKISTAN
: Rawalakot,
9.VI.1967
, on
Andrachne
(?)
cordifolia
; Ghani
leg.
[896]; collection of the
Natural History Museum
(London,
United Kingdom
), specimen number ‘8’ (in the same slide that specimen ‘7’).
Paratypes
: 7 apterous viviparous, same data that the
holotype
; collection of the
Natural History Museum
(London,
United Kingdom
).
Etymology
. The specific epithet of the new species,
parva
, is a Latin adjective, in nominative feminine (as
Hydaphis
) and singular, which means small, in reference to the short body length of this aphid. This name already was handwritten on the slide labels by D. Hille Ris Lambers, who never formally described the species.