Chrysellampus proximocellis Rosa, Wei & Xu

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: 157-159

publication ID

publication LSID

persistent identifier

treatment provided by


scientific name

Chrysellampus proximocellis Rosa, Wei & Xu

sp. nov.

Chrysellampus proximocellis Rosa, Wei & Xu  , sp. nov.

( Figs 8, 9View FIGURE 9 A – 9 F)

Material examined. CHINA: Holotype: 1 ♀, Gansu, Tianshui, Xiao Longshan (106 °08.201'E 34 ° 16.275 'N), 1490 m, 7.VII. 2007, leg. N. Mei. Paratype: 1 ♀, Yunnan, Weibaoshan Mts., W-slope (25 ° 11 'N 100 ° 24 'E), 2000–2800 m, 17.VI. 2002, S Becvár & R. & H. Fouquè ( GLAC).

Diagnosis. Chrysellampus proximocellis  sp. nov. can be easily separated from other species by: POL = 1 MOD (about 2 MOD in other species), F 3 –F 11 elongate (l/w = 1.3) (l/w = 1 in other species); scapal basin deep and smooth, weakly subrugose only laterally, not transversely striated or wrinkled, only C. praeteritorum (Semenov)  shares this characteristic, but the two species are easily recognisable for the different shape of head, metanotum and mesopleuron.

Description. Female. Holotype. Body length 7.1 mm ( Fig. 8). Fore wing length 5 mm. OOL = 2.0 MOD; POL = 1 MOD; MS = 0.8 MOD; relative length of P:F 1:F 2:F 3 = 1: 1.5: 0.8: 0.7.

Head. Frons and vertex with deep punctures ( Fig. 9View FIGURE 9 A); punctures on occipital area with subequal diameter and with two impunctate areas close to ocelli. Scapal basin deep and smooth, weakly subrugose only laterally. Vertex, occipital area and genae with colliculate, reticulate microsculpture in intervals between the punctures. Gena micropunctate and obliquely wrinkled. Ocellar triangle isosceles, with very short POL (1 MOD); postocellar line indistinct. Occipital and genal carina sharp, the latter curved close to the lower margin of eye, partially bisecting the MS.

Mesosoma. Pronotum with sharp and polished carina on anterior margin, with irregular punctures of different diameter evenly distributed, with a marked median depression on lateral sides ( Fig. 9View FIGURE 9 B). Mesoscutum basally with large and deep punctures, anteriorly with smaller punctures, evenly distributed; lateral field of mesoscutum with shallow and small round punctures evenly distributed ( Fig. 9View FIGURE 9 D). Notauli and parapsidal furrows complete. Mesoscutellum with round punctures smaller than those on mesoscutum and subequally interspaced. Metanotum elongate and gibbous, with large and deep aereolate punctures. Propodeal angles large and straight, slightly divergent. Mesopleuron with omaulus sharply carinate and scrobal carina strongly developed; lower margin of mesopleuron with large and irregular punctures ( Fig. 9View FIGURE 9 C).

Metasoma. T 1, T 2 and T 3 with fine and spare dots ( Fig. 9View FIGURE 9 E); apex of T 3 with a deep notch, bidentate at its margins and projected by a pointed rim ( Fig. 9View FIGURE 9 F); the notch has a triangular form, with the vertical angle of about 120 °.

Colouration. Body metallic blue to green; vertex and occipital area, two lateral pronotal spots, lateral fields of mesoscutum, mesoscutellum anteriorly and metanotum dark metallic blue. Tegula dark brown, with blue metallic reflection. T 1 anteriorly and laterally metallic green, dorsally, T 2 and T 3 metallic blue with violet reflections. Legs metallic green; tarsi brown with metallic green reflections at least on the first tarsomere. Scape, pedicel and F 1 metallic green, rest of flagellum black. Sternites metallic green.

Male. Unknown.

Distribution. China (Gansu).

Etymology. The name proximocellis  is derived from the Latin adjective proximus (= very close) and the noun ocellus, both following the second declension, plurals, in the ablative case, and the gender is masculine; proximis is shorten in the root proxim-, the species epithet is indeclinable. It refers to the short distance between posterior ocelli ( POL).


University of Modena and Reggio Emilia, Department of Biology