Lamachus albopictus Cushman, 1937
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publication ID |
https://doi.org/ 10.5281/zenodo.13237363 |
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publication LSID |
lsid:zoobank.org:pub:D4FC7074-ADC6-4310-B60E-12B7ECBD6E25 |
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persistent identifier |
https://treatment.plazi.org/id/7C12FC0A-FFAE-103C-BFBB-FA2AFDF8F843 |
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treatment provided by |
Felipe |
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scientific name |
Lamachus albopictus Cushman, 1937 |
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Lamachus albopictus Cushman, 1937 View in CoL (SJN: Matsunokurohosihabachi-maru-himebachi)
( Figs. 26A–F View Fig , 39F View Fig , 40S View Fig )
Lamachus albopictus Cushman, 1937: 37 View in CoL .
Description. Female (n = 2). Body length 9.7 mm, matt and covered with silver setae.
Head 0.53 × as long as wide in dorsal view. Clypeus 2.3 × as broad as high, sparsely punctate and polished, almost flat in lateral view, lower margin with a median concavity ( Fig. 40S View Fig ). Face 2.0 × as broad as high, finely punctate, slightly convex medially in lateral view. Dorsal profile of gena as Fig. 39F View Fig . Occipital carina complete. Length of malar space 0.5 × as long as basal width of mandible. Upper tooth of mandible slightly longer than lower tooth. Base of mandible weakly convex. POL 1.5 × as long as OD. OOL 1.0 × as long as OD. Antenna with 38 flagellomeres. FL I 5.0 × as long as maximum depth, 1.8 × as long as FL II.
Mesosoma densely and finely punctate. Epomia absent. Mesoscutum with weak notaulus, its posterior end not extending the middle of mesoscutum. Epicnemial carina weakly present (partly obscured) laterally and ventrally, its dorsal end situated distant from anterior margin of mesopleuron. Speculum without smooth area. Propodeum without carinae except for pleural carina and partly indistinct posterior transverse carina ( Fig. 26C View Fig ). Fore wing length 8.0 mm. Areolet present, pointed anteriorly, received vein 2m-cu at the outer angle ( Fig. 26E View Fig ). Fore wing vein 1cu-a postfurcal to vein M&RS. Nervellus subvertical, intercepted posterior the middle. Tarsal claws simple. Hind femur 5.3 × as long as maximum depth in lateral view. Ratio of length of hind first to fifth tarsomeres 4.8: 2.0: 1.25: 0.9: 1.0.
Metasoma. T I 1.7 × as long as maximum width, densely and finely punctate, with latero-median longitudinal carina, its posterior end situated near the spiracle. T II 0.8 × as long as maximum width, densely and finely punctate. T III densely and finely punctate anteriorly, sparsely and finely posteriorly. Ovipositor sheath 0.2 × as long as hind tibia.
Colouration ( Figs. 26A–F View Fig ). Body (excluding wings and legs) black. A large oval spot and a pair of small lateral spots of face, clypeus, mandible except for teeth, palpi, median part of collar, postero-dorsal corner of pronotum, a pair of small spots of antero-lateral part of mesoscutum, apical spot of scutellum, and postscutellum whitish yellow. Posterior margins of T II to T VII narrowly tinged with whitish yellow. Membranous part of metasomal sternites partly tinged with whitish yellow. Wings hyaline. Veins and pterostigma blackish brown. Fore and mid coxae, trochanters, and trochantelli black dorsally, white ventrally. Fore and mid femora blackish brown, each apical part paler than each basal part. Fore tibia, tibial spurs, and tarsus reddish yellow except for basal white area of tibia. Mid tibia, tibial spurs, and tarsus blackish brown except for basal white area of tibia. Hind leg black except for subbasal white band of tibia.
Male (n = 4). Similar to female. Body length 7.8–9.6 mm. Clypeus 2.2 × as broad as high. Face 1.8–1.9 × as broad as high. Length of malar space 0.4–0.5 × as long as basal width of mandible. POL 1.3–1.7 × as long as OD. OOL 1.0–1.1 × as long as OD. Antenna with 36–37 flagellomeres. Fore wing length 6.4–7.8 mm. Nervellus subvertical, intercepted posterior or at the middle. Hind femur 5.2–5.4 × as long as maximum depth in lateral view. Ratio of length of hind first to fifth tarsomeres 4.7–4.8: 2.0: 1.2–1.3: 0.85–0.9: 0.9. T I 1.8–2.0 × as long as maximum width. T II 0.75–0.85 × as long as maximum width. Face except for dorsal parts along each facial orbit entirely yellow ( Fig. 26F View Fig ). Scape with a ventral yellow spot ( Fig. 26F View Fig ).
Material examined. JAPAN: KPM–NK 84940–84943, 1 F & 3 M, Gunma Pref., Tsumagoi Vil., Kanbara, Takamine-kogen , 3. IX. 2015, K. Watanabe leg.; SEHU , F (paratype), Nagano Pref., Nagawa Vil. , 24–30. IX. 1936 host cocoon coll., 10. XI. 1936 em., R. W. Burrell leg.; SEHU , M (paratype), Kagoshima Pref., Toso , 9. I. 1936 host coll., 9. XI. 1936 em., R. W. Burrell leg.
Distribution. Japan (Honshu and Kyushu).
Bionomics. A sawfly, Diprion nipponicus Rohwer, 1910 ( Diprionidae ), was recorded as host ( Cushman, 1937).
Remarks. The specimens collected by the author differ slightly from the type series in the absence of some lateral white markings on the metasomal tergites ( Fig. 26D View Fig ; with markings in type series). While I conclude that this is an intraspecific variation of the species.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Lamachus albopictus Cushman, 1937
| Watanabe, Kyohei 2024 |
Lamachus albopictus
| Cushman, R. A. 1937: 37 |