Research Article |
Corresponding author: Riffat Sultana ( riffatumer@hotmail.com ) Academic editor: David Eades
© 2014 Riffat Sultana, Waheed Ali Panhwar, Muhammad Saeed Wagan, Imran Khatri.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Sultana R, Panhwar WA, Wagan MS, Khatri I (2014) Systematic status of true katydids Sathrophyllia (Orthoptera, Tettigonioidea, Pseudophyllinae) from Pakistan, with description of two new species. ZooKeys 466: 1-11. https://doi.org/10.3897/zookeys.466.8423
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The genus Sathrophyllia Stål, 1874 from Pakistan is reviewed with four species recorded. The diagnostic characters are given and two new species Sathrophyllia saeedi sp. n. and Sathrophyllia irshadi sp. n. are described. In addition to that Sathrophyllia nr. rugosa (Linnaeus, 1758) and Sathrophyllia femorata (Fabricius, 1787) are re-described. Further information on the distribution and ecology of the species is given and a key to studied species of Sathrophyllia is presented. Sathrophyllia femorata (Fabricius, 1787) and S. rugosa (Linnaeus, 1758) are recorded from Rawalakot (KPK) and Tharparker (Sindh), Pakistan for first the time.
Sathrophyllia , new record, systematics, identification, new species, Pakistan
Bushcrickets or katydids belonging to the Tettigonioidea consume a wide variety of agricultural crops including forests, fruit orchards, and berry shrubs, and many species are ecologically associated with forest biocenoses, damaging trees and shrubs in addition to herbaceous plants (
Sathrophyllia was erected by Stål in 1874 with type species Sathrophyllia fuliginosa. This genus consists of six species
The present study fills some gaps in the existing knowledge. Furthermore, the addition of two new species proved to be a contribution to the biodiversity of Sathrophyllia fauna. Additionally, the findings of the present study will be useful in making predictions about the relationship between the species and for accurate identification in the future.
The adult Sathrophyllia were collected from meadow grass, bushes, with mixed vegetation (herbs, shrubs and grasses) and tress with the help of traditional insect hand-nets (8.89 cm in width and 50.8 cm in length). For killing and preservation of specimens, the standard entomological methods described by
Sathrophyllia arabica Krauss, 1902 Arabian Peninsula
Sathrophyllia cristata Beier, 1954 Indo-China, Thailand
Sathrophyllia femorata (Fabricius, 1787) Pakistan new record
Sathrophyllia fuliginosa Stål, 1874 Indian Subcontinent, Nepal
Sathrophyllia rugosa (Linnaeus, 1758) Pakistan new record
Sathrophyllia acutipennis Beier, 1954 Malesia, Borneo
Sathrophyllia saeedi sp. n.
Sathrophyllia irshadi sp. n.
1 | Pronotum with one pointed tooth at anterior side, 6.3 mm in length (Fig. |
2 |
– | Pronotum without pointed tooth at anterior side, 9 mm in length (Fig. |
femorata |
2 | Ovipositor 10.3 mm long, with small tooth on its apex (Fig. |
nr. rugosa |
– | Ovipositor 18 mm long, without small tooth on its apex (Fig. |
3 |
3 | Pronotum with tubercles, brown from dorsal side, 9.5 mm in length (Fig. |
irshadi sp. n. |
– | Pronotum without tubercles, paler from dorsal side, 10 mm in length (Fig. |
saeedi sp. n. |
Size medium to large, head usually short and rounded in appearance, face not slanting or flattened, head finely punctuated, forehead usually pale in color. Pronotum strong with or without tubercle on its apex. Ovipositor with or without spines on its apex.
Dehaania Koningsberger, 1902.
Pronotum with or without tubercle on it, size medium or large (sometimes very large), head usually short and rounded, face not slanting or flattened; antennae longer than body, inserted between eyes. The fore margin of the tegmina is not or only very faintly undulate. In this character it differs from Olcinia Stal where the fore margin shows distinct lobes. In most species of Sathrophyllia the tegmina are tapering towards the apical part, not broadly rounded as in the genera Tegra Walker and in many species of the genus Olcinia Stal.
Dark brown tegmina with distinct dots (Fig.
♀: pronotum, 6.3 mm; tegmina, 42 mm; femur, 10.3 mm; tibia, 8.7 mm; ovipositor, 10.3 mm; total body length, 25.9 mm.
Pakistan, Sindh, Tharparkar, Mithi, 1♀, 10.viii.2013, 24.7400°N, 69.8000°E (leg. Riffat S & Waheed AP).
This species is very closely related to S. rugosa (Linnaeus, 1758) but it differs due to following morphological analysis: it is smaller in size, the presence of serration on the ovipositor, coloration and width (4.2 mm). Furthermore, S. rugosa was described from Himalayas and the high altitudes and colder areas but the present specimen is coming from the desert area of Tharparkar, Sindh. Despite is uncertain placement, it is a new record for the area. The present investigation confirms the statement of the great Sir
Sathrophyllia nr. rugosa has been collected from flat habitats. These habitats are usually surrounded by sand dunes comprising of sandy loam soils supporting a large number of taxa. The community formation of tree species such as Prosopis cineraria and Tamarix aphylla is present. Furthermore, katydids were also noted to have a close association with Citrllus colycynthis, Dactylotenium scindicum and Poa tenella in the survey areas.
Sathrophyllia orientalis (Rehn, 1909) 200: figs 22, 23.
Sathrophyllia punctifrons Karny, 1927, p. 8.
Generally brown in color, suffused with drab at tegmina at the base of costal field and to a lesser degree on the distal half (Fig.
♂ pronotum, 9 mm; tegmina, 41 mm; femur, 16 mm; tibia, 15 mm; total body length, 30 mm. ♀, pronotum, 11 mm; tegmina, 46 mm; femur, 18 mm; tibia, 16 mm; ovipositor, 20 mm; total body length, 32 mm.
Rawalakot 1 ♂ & 1♀, 11.ix.2013, 33.51°N, 73.45°E (leg. Riffat S & Waheed AP).
Earlier,
During the field surveys, it was observed that Sathrophyllia femorata fed exclusively in the cultivated field habitats occurring near valleys. These valleys were dominated by the grasses Cynodon dactylon and Desmostachya-Brachiaria. Present study suggests that most probably they feed on these grasses but our later study with more specimens will confirm this fact.
This new species is closely related to Sathrophyllia femorata but differs in coloration and body size and in having a unique light brownish coloration. It is also smaller in size than femorata by approximately 3 mm. Body medium size; pronotum with tubercles and tegmina wider in the middle slightly tapering at apex. Ovipositor small in size, thick at its basal part and serrated at apex (Fig.
Head short, rounded, slightly ovoid at apex; pronotum with tubercles (Fig.
♀: pronotum 10 mm, tegmina 47 mm, femur 19 mm, tibia 16 mm, ovipositor 18 mm, total body length 29 mm.
Rawalakot, 1♀, 11.ix.2013, 33.51°N, 73.45°E (leg. Riffat S & Waheed AP).
This new species is closely related to Sathrophyllia femorata but differ in the tegmina. The tegmina of femorata is of a peculiar texture with low nodes of short cross veins, whilst the tegmina in new species is brownish and has dark brownish patches on it producing a lunar shape.
Sathrophyllia saeedi apparently has been found in the agricultural/cultivated field habitats between dunes in valleys where Desmostachya-Brachiaria cynodon was dominant. Moreover, the valleys were comprised of different plant communities such as Achyranthus aspera, Alhagi maurorum, Dactyloctenium aegypticum, Cenchrus ciliaris, and Cynodon dactylon. The present study suggests that few grasshopper species were probably able to utilize these resources of such a habitat for promoting their breeding and feeding activities.
This new species is named in honor of Prof. Dr. Muhammed Saeed Wagan, a renowned taxonomist and ex-chairperson, Department of Zoology, University of Sindh, and the person who opened the door of entomology to us.
This new species is closely related to Sathrophyllia rugosa but differs in coloration and body size: it has s brownish coloration and is also larger by 12.5 mm than rugosa. Furthermore, the tegmina of Sathrophyllia irshadi is of a peculiar texture with reddish patches on its surface. Body large in size; pronotum with numerous tubercles and tegmina well developed and much longer than the body length with reddish patches. Ovipositor wide, slightly tapering at apices thick at its basal part and but not serrated at apex (Fig.
Head rounded, ovoid at apices; pronotum with numerous tubercles (Fig.
♀: pronotum 9.5 mm, tegmina 50 mm, femur 21.5 mm, tibia 16.5 mm, ovipositor 18 mm, total body length 38 mm.
Rawalakot, 1♀, 4.vi.2013, 33.51°N, 73.45°E (leg Riffat S & Waheed AP).
The new species is like that of S. rugosa but differ in body size and coloration. Furthermore, the specimen has been collected from Rawalakot which occurs above sea level whilst S. rugosa was collected from low altitude (24.7400° N, 69.8000° E) from Tharparker.
This species inhabits especially nutrient-rich grasslands. The surrounding plantations were covered by Desmostachya-Brachiaria cynodon, which were found to be dominant over this habitat. Moreover, the valleys were comprised of different plant communities i.e., Achyranthus aspera, Alhagi maurorum, Dactyloctenium aegypticum, Cenchrus ciliaris and Cynodon dactylon.
This new species is named in the honor of Muhammad Irshad Entomologist, NARC Islamabad, for his great contributions in the field of entomology.
This study was supported by grants received from Higher Education Commission Islamabad (HEC) Pakistan under Indigenous PhD Fellowship for 5000, Scholars Phase-II.