Chrysellampus praeteritorum ( Semenov, 1932 ) Semenov, 1932

Rosa, Paolo, Wei, Na-Sen & Xu, Zai-Fu, 2015, Revalidation of genus Chrysellampus Semenov, 1932, with description of two new species from China (Hymenoptera, Chrysididae), Zootaxa 4034 (1), pp. 148-160 : 156-157

Chrysellampus praeteritorum ( Semenov, 1932) , comb. nov.

( Figs 7 A–7F)

Parellampus praeteritorum Semenov-Tian-Shanskij, 1932: 7. Holotype ♀, China: Sichuan, Tadzinlu (ZIN) (examined). Philoctetes praeteritorum (Semenov) : Kimsey & Bohart 1991: 257; Rosa et al. 2014: 34.

Material examined. CHINA: ♀, Tadzinlu, Potanin 22.VI.1893 [in Cyrillic], Holotypus, Parellampus praeteritorum m. typ. un. ♀ A. Semenov-Tian-Shansky det. V.19 ( ZIN).

Diagnosis. Chrysellampus praeteritorum ( Semenov, 1932) shows unique metanotum elevated and conical; mesopleuron triangular shaped, formed by omaulus and scrobal carina strongly projecting in the juncture on ventral margin. Other diagnostic chacateristics are sharp collar edge on anterior margin of pronotum; pronotum longer than mesoscutum, with concave margins; mesoscutum with smaller punctures evenly distributed, but apparently gathered towards notauli (holotype damaged by entomological pin). Colliculate sculpture less incised and flagellomeres less flattened than other Chrysellampus. Apical margin of T3 distinctly notched without teeth at its sides.

Distribution. China (Sichuan).

Remarks. Semenov-Tian-Shanskij (1932) described the genus Parellampus based on the sole P. praeteritorum . This species is clearly separated by all the other species in the genus. The main diagnostic characteristics given are conical to submucronate metanotum, projecting juncture of omaulus and scrobal carina on ventral margin of mesopleuron, and apical margin of T3 with simple notch. Nevertheless, these characteristics are valid for species identification, and variable within the genus. The same morphological variations are observed in the genus Philoctetes where some species bears mucronate metanotum or notch apical margin of T3 without rim. However, the main diagnostic features of the genus Chrysellampus can be found in P. praeteritorum , as general habitus subcylindrical and elongated; elongated pronotum, metanotum and T1; pronotum fully punctuated with large punctures; MS bisected by genal carina; mesopleuron with ventral margin extending at an oblique angle; with elongated omaulus and shortened scrobal carena; etc. Semenov (1932) described tarsal claw with three teeth, but they are subsidiary teeth and a smaller one at base can be considered as the fourth subsidiary tooth, therefore claws have in total five teeth. For this morphological characteristics we include P. praeteritorum in the genus Chrysellampus and propose the new synonym Chrysellampus Semenov, 1932 = Parellampus Semenov, 1932, syn. nov.

Figures

FIGURE 7. Chrysellampus praeteritorum (Semenov), ♀, holotype. A. Mesopleuron and metanotum, dorso-lateral view; B. Head, frontal view; C. Head and mesosoma, dorsal view; D. Head, mesosoma, and T 1, lateral view; E. Metasoma, posterolateral view; F. Apex of T 3, posterior view.