Chrysis westerlundi

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Taxonavigation

Ordo: Hymenoptera
Familia: Chrysididae
Genus: Chrysis

Name

Chrysis westerlundi Trautmann, 1927 – Wikispecies link – Pensoft Profile

• Chrysis succincta var. westerlundi Trautmann, 1927: 159.
• Chrysis succincta var. nordströmi Trautmann, 1927: 159.
• Chrysis westerlundi: Linsenmaier 1959: 113.

Diagnosis

Length 7–9 mm. The species differs from other North European species of the Chrysis succincta group by its characteristic colouration: the head and mesosoma are completely dark blue or almost black dorsally in the female and green blue in the male. The metasoma is dorsally red in both sexes and anteriorly greenish in the male. The metatarsus is long, the second tarsomere is at least 3.5 times as long as broad (Fig. 171). Superficially, the species can resemble similarly coloured species of the Chrysis ignita group, but the two central apical teeth are close to each other and extend further posteriorly than the lateral teeth (as in Fig. 78). Also the black spots of S2 are large and not separated by a metallic central line.

Distribution

Finland. Very rare, only eight specimens (6 females and 2 males) are known. – West Palearctic: the species has been found only from Finland and Russian Fennoscandia (Paukkunen et al. 2014).

Biology

Habitat: sparsely vegetated sandy areas. One specimen was caught with a Malaise trap in a bog. Flight period: mid-June to early August. Host: unknown.

Remarks

The species might be conspecific with the Far Eastern species Chrysis cavaleriei du Buysson, 1908 and/or the North American species Chrysis provancheri Schulz, 1906 (= aurichalcea Provancher, 1881) (Paukkunen et al. 2014).

Taxon Treatment

• Paukkunen, J; Berg, A; Soon, V; Ødegaard, F; Rosa, P; 2015: An illustrated key to the cuckoo wasps (Hymenoptera, Chrysididae) of the Nordic and Baltic countries, with description of a new species ZooKeys, (548): 1-116. doi

Images

Figures 77–92. T3, dorsal view: 77 Chrysis succincta ♀ 78 Chrysis illigeri ♀ 79 Chrysis viridula ♀ 80 Chrysis equestris ♀ 81 Chrysis sexdentata ♀ 82 Chrysis indigotea ♂ 83 Chrysis iris ♂ 84 Chrysis impressa ♀ 85 Chrysis impressa ♂ 86 Chrysis angustula ♂ 87 Chrysis subcoriacea ♂ 88 Chrysis longula ♂. Ovipositor, dorsal view: 89 Chrysis equestris ♀ 90 Chrysis zetterstedti ♀ 91 Chrysis solida ♀ 92 Chrysis impressa ♀. Scale 1 mm.  Figures 165–178. Metatibia: 165 Chrysis pulcherrima ♀ 166 Chrysis viridula ♀. Mesotibia (arrow indicating spurs): 167 Chrysis pseudobrevitarsis ♀ 168 Chrysis impressa ♀. Hindleg (arrow indicating second tarsomere): 169 Chrysis pseudobrevitarsis ♀ 170 Chrysis impressa ♀ 171 Chrysis westerlundi ♀. Antenna (arrow indicating F1 or F1 and F2): 172 Chrysis brevitarsis ♀ 173 Chrysis corusca ♂ 174 Chrysis subcoriacea ♂ 175 Chrysis ignita ♂ 176 Chrysis schencki ♂ 177 Chrysis impressa ♂ 178 Chrysis borealis sp. n. ♂. Scale 1 mm.