Omalus corrugatus
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Ordo: Hymenoptera
Familia: Hymenoptera
Genus: Omalus
Name
Omalus corrugatus Rosa, Wei & Xu – Wikispecies link – Pensoft Profile
- Omalus corrugatus Rosa, Paolo, 2015, Zootaxa 4013: 69-69.
Materials Examined
Material examined. Holotype: ♀, CHINA: Guangdong, Guangzhou, Liuxihe National Forest Park (23 ° 44 ' 31 "N113 ° 47 '0"E), 29–31.VIII. 2004, leg. Z-f Xu (SCAU).
Diagnosis
Diagnosis.Omalus corrugatus sp. nov. resembles O. timidus (Nurse, 1902) for body colouration; however it can be easily separated from the latter by weakly wrinkled mesoscutum.
Description
Description.Female. Holotype. Body length 2.9 mm (Fig. 1 A). Fore wing length 2 mm. OOL = 1.4MOD; POL = 2.4MOD; MS = 1.2MOD; relative length of P:F 1:F 2:F 3 = 1: 1: 0.8: 0.6. Head. Head with shallow punctures and weak wrinkles on frons and vertex (Fig. 1 B). In lateral view, the longest distance between genal carina and lower margin of eye is 0.9MOD. Genal carina bisecting MS, its end almost jointing lower margin of eye (0.2MOD). Scapal basin deep, smooth and glabrous. Ocellar triangle isosceles. Occipital area beneath ocellar area weakly wrinkled. Postocellar line interrupted medially. Gena without punctures, with fine and oblique wrinkles. Mesosoma. Pronotum weakly wrinkled, with row of large deep pits on anterior margin, with shallow, spare and small punctures on posterior margin, deeper and denser punctures (0–0.5 PD) on lateral margins (Fig. 1 C). Mesoscutum with wrinkles (Fig. 1 C). Notauli distinct and complete, with deep and elongated notauli pits (Fig. 1 C). Parapsidal furrow indistinct. Lateral field of mesoscutum with row of large punctures along tegula margin. Mesoscutellum with two enlarged anterior foveae, distinctly separated by 1.5MOD; with weakly wrinkled subtriangular antero-median area; rest of mesoscutellum with large, round and subequal punctures, and wrinkled interspaces on posterior margin (Fig. 1 D). Metanotum evenly with larger, deeper and irregular areolate punctures (Fig. 1 D). Mesopleuron and metapleuron fully with large and deep punctures, without elongated punctures or other elongated sculptures on ventral margin. Tarsal claw with three teeth. Metasoma. T 1 impunctate. T 2 and T 3 almost impunctate, with fine and spare dots close to lateral margins. T 1 without semitransparent rim. T 2 with narrow semitransparent rim (0.8MOD). T 3 with wider semitransparent rim (1MOD). Apex of T 3 with distinct median notch (Fig. 1 F). Colouration. Antenna black, with scape and pedicel metallic blue. Head black, with face metallic blue. Mesosoma bluish-purple, with median area of pronotum, mesoscutum and metanotum black. Tegula blackishbrown. Leg metallic bluish-green, with tarsi brown. Metasoma black with feeble metallic blue reflections on anterio-lateral corners of T 1 and lateral margins of T 2 and T 3. Male. Unknown.
Distribution
Distribution.China (Guangdong).
Etymology
Etymology. The specific name corrugatus is the past participle of the Latin verb corrugo (nominative masculine singular) and refers to the sculpture of mesosoma.
Taxon Treatment
- Rosa, Paolo; Wei, Na-Sen; Xu, Zai-Fu; 2015: Contribution to the genus Omalus Panzer, 1801 of China, with descriptions of two new species (Hymenoptera, Chrysididae), Zootaxa 4013: 69-69. doi
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