Chrysidea falsa Rosa & Xu

Rosa, Paolo & Xu, Zai-Fu, 2015, Contribution to the genus Chrysidea Bischoff, 1913 from China, with description of a new species (Hymenoptera, Chrysididae), Zootaxa 4040 (4), pp. 465-468 : 466

Chrysidea falsa Rosa & Xu , sp. nov. ( Figs 1 A–1F)

Material examined. Holotype: ♀, CHINA: Yunnan, Jingdong, Wenjing Town (24°18'9"N 100°55'53"E) 29.IV.2005, Hs. Wang ( SCAU). Paratypes: 1♀, same data as holotype ( SCAU); 1♀, Yunnan, Yingjiang, Taiping Village (24°39'29"N 97°51'9"E), 15.VIII.2005, Q. Li ( SCAU); 1♀, Yunnan, Jingdong, Jinping Town (24°27'14"N 100°50'4"E), 28.IV.2005, H-s. Wang ( SCAU). MALAYSIA: 1 ♀, Malaya, Coll. Linsenmaier, Type ♀ Chrysis L. Trichrysis laticoela det. Linsenmaier 1991, NO TYPE sp. in litteris P. Rosa det. 2010 GBIF-Chrysididae, ex-synoptic collection, NML _ ENT GBIF _Chr 0 0 0 41040 ( NMLS). PHILIPPINES: 1♀, S Mindanao, Zamboanga, 12.[19]12, Böttcher, Type ♀ Chrysis L. Trichrysis simplicicollis Linsenmaier det. 1959, NO TYPE sp. in litteris P. Rosa det. 2010 GBIF-Chrysididae, exsynoptic collection, NML _ ENT GBIF _Chr 0 0 0 41046 ( NMLS).

Diagnosis. Chrysidea falsa sp. nov. is the only known Oriental species with three distinct teeth on apex of T3 and convex interval between median tooth and lateral tooth. So far only two Malagasy species in this genus have apex of T3 with three teeth, C. dido Zimmerann, 1956 and C. phoebe Zimmermann, 1956 ( Kimsey & Bohart 1991) ; but Chrysidea falsa sp. nov. can be separated from them by fully sclerotised outer veins of fore wings.

Description. Female. Body length 5.0– 6.2 mm.

Head. Scapal basin deep, punctate and medially wrinkled ( Fig. 1 B). TFC distinct, single, topping upper part of scapal basin, and descending along eye margin. Relative length of P:F1:F2:F3 = 1.0:1.0–1.1:0.7:0.6; F1 l/w = 2, OOL = 1.8–2.0 MOD; BOL = 2.4–3.0 MOD; POL = 2.0–2.5 MOD; MS = 1 MOD; clypeus slightly concave.

Mesosoma. Pronotal groove deep, extending to 3/4 length of pronotum. Sublateral carina faint ( Fig. 1 C). Metanotum with deep antero-median pit ( Fig. 1 C). Punctuation on mesosoma with deep and large punctures; largest punctures on mesoscutum with diameter of mid ocellus; mesoscutellum antero-medially with black triangular area with small and shallow punctures, and large smooth interspaces. Mesopleuron with episternal sulcus formed by large and deep foveae, scrobal sulcus formed by large transversal areolate punctures. Metanotum slightly projected posteriorly.

Metasoma. Punctuation small, dense, uniform, and with subequal interstices; punctures considerably smaller than those on mesosoma (0.3–0.4 PD) ( Fig. 1 D); larger punctures and narrow interstices laterally. T1 with pair of submedian humps at front of dorsal area ( Fig. 1 D); T2 with geminate punctures and with faint median carina. T3 pre pit row area not bulged; pit row distinct, with small and deep and pits occasionally fused each other ( Fig. 1 E). Apex of T3 with three short apical teeth; interval between median tooth and lateral tooth convex. S2 black spots oval and medially separated by at least 1 MOD ( Fig. 1 F).

Colouration. Face metallic green. Vertex and mesosoma metallic bluish-green. Antenna blackish, with scape, pedicel and F1 metallic bluish-green. Tegula metallic bluish-green. Legs metallic bluish-green, with tarsi brownish. Metasomal terga metallic bluish-green, with lighter greenish to golden reflections laterally and posteriorly.

Male. Unknown.

Biology. Unknown.

Distribution. China (Yunnan), Malaysia ( Malaya), Philippines (Mindanao).

Remarks. In Linsenmaier's collection in NMLS there are two specimens labelled as holotypes of Chrysis (Trichrysis) laticoela Linsenmaier and C. (T.) simplicicollis Linsenmaier. The descriptions of these species were never published (Rosa et al. 2015). They share the main diagnostic characteristics of C. falsa sp. nov. even if their colouration is more green or greenish-blue and one specimen is smaller compared to the other specimens.

Etymology. The specific name is derived by Latin adjective falsa (= deceptive, misleading), for wing venation and shape of T3 similar to those of Trichrysis Lichtenstein.

Figures

FIGURE 1. Chrysidea falsa sp. nov., ♀, holotype. A. Habitus, lateral view; B. Head, frontal view; C. Pronotum, mesoscutum, mesoscutellum and metanotum, dorsal view; D. Metasoma, dorsal view; E. T 3, dorsal view; F. Metasoma, ventral view.