Chrysellampus praeteritorum ( 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

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Chrysellampus praeteritorum ( Semenov, 1932 )

comb. nov.

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

( Figs 7View FIGURE 7 A – 7 F)

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 T 3 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 T 3 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 T 3 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 T 1; 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.


Russian Academy of Sciences, Zoological Institute, Zoological Museum














Chrysellampus praeteritorum ( Semenov, 1932 )

Rosa, Paolo, Wei, Na-Sen & Xu, Zai-Fu 2015


Kimsey 1991: 257
Semenov-Tian-Shanskij 1932: 7