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Bellimeris stoetzneri (Betrem, 1928)
(figs 5-6)
Campsomeris (Megacampsomeris) stoetzneri Betrem, 1928: 139 (as Campsomeris stoezneri, but in Key and Table of Contents as Campsomeris stoetzneri).
Campsomeris (Megacampsomeris) stoetzneri Betrem: Betrem, 1941: 63.
Campsomeris (Megacampsomeris) stoetzneri Betrem: Tsuneki, 1972: 7.
Megacampsomeris stoezneri Betrem: Osten, 2005: 23.
Type material.— ♀ holotype Campsomeris stoetzneri Betrem, 1928; People’s Republic of China, Kwanhsien, Szetschwan prov., Stötzner Exp. (presently Kwanhsien near Chengdu, Sichuan prov.) and a blue label with number 65 (ETHZ; type label).
Other material.— (China), Peiping, Hopei prov. (presently Beijing or Hopei prov.), vii-1933, 1♀ (G. Liu; RMNH).
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Figs 5-6, Bellimeris stoetzneri (Betrem, 1928), holotype ♀, China, Kwanhsien. 5, habitus; 6, upper plate of metapleuron and spiracular angle (arrows point to punctures on vertical portion of metapleuron and punctate spiracular angle); scale 1 mm. |
Redescription of female holotype.— The holotype (fig. 5) looks very similar to the lectotype of B. bella and therefore only the differences with this lectotype are given. Length of body 28 mm. Tergites 1-4 with yellow apical margins, interrupted over a rather short distance. Fore wings with closed cell area hyaline to yellowish-hyaline, wing blade yellowish-hyaline with subapical slightly darker patch. Hind wings yellowish-hyaline. Wings darker in certain lights. Apical fringe on tergite 4 white. Hind tibial spur spatulate as in B. bella.
Head.— Clypeal disc without length-wise wrinkles.
Mesosoma.— Transition from dorsal to vertical portion of upper plate of metapleuron more gradual. Vertical portion punctate just below transition with dorsal portion and with some punctures along anterior and posterior sutures. Spiracular angles punctate (fig. 6). Lateral vertical area of propodeum almost entirely punctate but for rather small anterior inner corner. Scutellum with narrow irregular impunctate vertical stripe, broader above posterior margin. Metanotum with irregular median impunctate vertical stripe, lower portion sometimes with larger interspaces. Propodeum with upper portion of posterior vertical mid portion densely punctate as in B. bella but lower vertical area laterally with some dispersed punctures. Lower mid vertical portion densely covered with rather long white hairs, parallel running from base to punctate area of posterior mid vertical portion. Such hairs could not be seen on B. bella lectotype due to the closeness of metasoma to the propodeum but may be the “vertical striae” mentioned by Bingham.
Developmental aberration in the holotype.— Vertical portion of upper plate of metapleura of holotype shows on both sides an aberrant structure that likely has developed during juvenile development or metamorphosis. It can be described as two overlaying layers of which the upper layer is only partly developed. The border of this layer shows as an irregular ridge on the vertical portion. A similar but smaller aberration can be seen on the lower plate. It is possible that the development aberrations mentioned above have affected structure and punctation of the metapleuron. However, the other B. stoetzneri specimen, listed below, shows the same characteristic punctation as in the B. stoetzneri holotype and thus the aberrant development of the holotype did not noticeably affect the punctation of the metapleuron and spiracular angle.
Other female specimens.— The Peiping specimen (28 mm) is very similar to the holotype but the yellow apical margins on tergite 2 and 3 are narrowed in the middle and with only a very small interruption. Punctation of the mid vertical portion of the propodeum is as in B. bella.
Remarks.— One of the specimens from Hanchow (China, Hou-pei province, presently Hubei province), listed in Betrem (1941) as Campsomeris stoetzneri is present in the RMNH collection and was studied. It was identified as a female of Megacampsomeris schulthessi Betrem, 1928.
Betrem (1941) suggested that Campsomeris ferox de Saussure, 1859 (= Campsomeris (Radumeris) tasmaniensis (de Saussure, 1855) Betrem form ferox (de Saussure) Betrem n. status (Bradley, 1974)) could also belong to the Campsomeris stoetzneri group. This species, however, is without doubt a Radumeris species. Females of the genus Radumeris share certain characteristics with the genus Bellimeris such as a convex frons, spatulate hind tibial spurs and a long vertical plate on the hind femur but frons and vertex are largely impunctate, the punctation in general is less dense and deep and the metasoma is largely yellow or reddish-yellow.