Neoperla obliqua, Banks 1913

Dela Cruz, Ian Niel B., Nuñeza, Olga M. & Lin, Chung-Ping, 2018, A new record of Neoperla obliqua Banks, 1930 (Plecoptera: Perlidae) from Mt. Malindang, Mindanao, Philippines and association of life stages using DNA barcodes, Zootaxa 4514 (1), pp. 145-150 : 146-147

publication ID

https://doi.org/ 10.11646/zootaxa.4514.1.12

publication LSID

lsid:zoobank.org:pub:F2CAE9F9-2975-48AF-868D-11173F16ED48

DOI

https://doi.org/10.5281/zenodo.5958918

persistent identifier

https://treatment.plazi.org/id/039D87ED-F35B-FFBA-D1FD-8BD64B4A76C1

treatment provided by

Plazi

scientific name

Neoperla obliqua, Banks 1913
status

 

Neoperla obliqua, Banks 1913 View in CoL

Material examined. Philippines, Mindanao, Mt. Malindang, Layawan River . 1 ♂, 127masl, N 08°26.314’ E 123°42.492’, 5 October 2013; 3 ♀, 185masl, N 08°25.418’ E 123°41.806’, 3 October 2013. 185masl, N 08°25.418’ E 123°41.806’, 3 October 2013; 1 ♀ nymph, 1,218masl, N 08°18.495’ E 123°37.980’. All material is deposited in the Natural Science Museum, MSU-IIT, Iligan City GoogleMaps , Philippines.

Ova. Shape oval, highly striated, ( Fig. 1A View FIGURE 1 ). Collar present but flat. Length ca. 318.16 ± 10.37 µm (n=3), equatorial width ca. 222.63 ± 4.97 µm. Collar bare, with length ca. 16.2 ± 8.5 µm and width ca. 85.83 ± 9.7 µm, with uneven surface, resembling a lid ( Fig. 1C View FIGURE 1 ). Chorionic surface rugose and somewhat ornate. Gyral structure irregular but usually follows a longitudinal ridge-like pattern which arises from the collar end, creating a sulci or irregular grooves in between studded with pores of almost similar sizes ( Fig. 1D View FIGURE 1 ). Micropyles at distal end of the collar and present in all ova examined ( Fig. 1B View FIGURE 1 ).

Nymph. General color golden ochre to pale orange, while darker, usually dark brown to black margins on frons and labrum of head, the pronotal disc, tip of wingpads, and abdominal terga ( Fig. 2A View FIGURE 2 ). Pronotal disc ovalshaped. Wingpads not elongated. Terga faintly striped. Antennae and cerci setaceous. Mandible ochre, ovateshaped but broad on its base possessing a five comb-like, blunted teeth of irregular sizes ( Fig. 2B View FIGURE 2 ). Few fine setal hairs on the inner edges of mandible. Legs golden-brown without acute setal surface hairs ( Fig. 2C View FIGURE 2 ).

Female nymph. Body length of 17.44 mm (n=1), abdominal length 7.02mm. Width of head is 4.01mm, pronotal disc is 3.91mm. Ocelli 0.8mm diameters apart. Mandible 1.43 mm. Mesothoracic and metathoracic width 4.36 mm and 4.07 mm, respectively. Antenna 11.05 mm. Femur 4.13 mm, tibia 3.94 mm, tarsus 1.22 mm. Cercus 9.78 mm.

Habitat. Adults of N. obliqua were sympatric with another unidentified perlid stonefly species. The single nymph of N. obliqua was found under large rocks in the Layawan River, in a section with moderate current.

Life stage and sex association. Pairwise CO1 sequence comparisons revealed 0.2% intraspecific divergence between males and females of putative conspecifics. The sequence similarity between adult and nymphal stages was 99.9 ± 0.14% ( Table 2). Comparisons between divergences of interspecific CO1 sequences of all available perlid stoneflies based on Kimura-2-parameter (K2P) model were also shown ( Table 3).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Plecoptera

Family

Perlidae

Genus

Neoperla

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