Lanthanomyia bockleri Heydon

Heydon, Steven L., 2014, Review of south temperate New World Coelocybinae (Hymenoptera: Pteromalidae), Zootaxa 3754 (4), pp. 420-434 : 428-431

Lanthanomyia bockleri Heydon , n. sp.

( Figs 16 , 22, 23, 24 )

Diagnosis. Individuals of L. bockleri are medium sized (body length around 3 mm) with the microsetae of the body white and appressed to the cuticle. The head and mesosoma are mostly a uniform tawny or orangey yellow with some areas broadly darker ( Fig. 16 ). The antenna ( Fig. 22 ) has the scape cylindrical and extending to the level of the median ocellus, A1 is twice as long as wide, and the flagellum is parallel-sided with all but the terminal flagellar segments appearing elongate. The occipital foramen is close to the vertex ( Figs 16 , 24 ). The wing membrane is either clear or with a brownish triangular macula extending posteriorly from the stigma. The gaster is about twice as long as wide and about the same length as the combined length of the head and mesosoma ( Fig. 16 ). The high attachment of the head and the pointed anterior margin of the clypeus ( Fig. 23 ) are unique characters within this genus.

Description. Holotype, female (MNNC). Color. Body tan ( Fig. 16 ) with the following more yellowish: lower half of head, collar, postero-median face of axilla, dorsellum, lateral parts of metanotum; the following dark brown: pleural areas, and propodeum with transverse broad diffuse band. Antenna ( Fig. 22 ) brownish yellow. Legs brownish yellow with hind coxa slightly darker basally. Wing with submarginal vein pale reddish brown; remainder brownish yellow; membrane hyaline. Microsetae of body pale.

Sculpture. Metapleuron imbricate; propodeum imbricate, postero-medially with strong parallel carinae.

Structure. Body length 2.8 mm. Head width 1.2× height (50:40) ( Fig. 23 ), 2.1× length (50:24); eye height 1.4× length (25.0:17.5), 2.5× malar distance (25:10), length 2.9× temple length (17.5:6.0); ratio of MOD, OOL, POL, LOL as 3.5:7.5:10.0:5.5; occipital foramen attaching to head far dorsally ( Figs 16 , 24 ), tip of pronotum touching head at point where curved portion of vertex meets vertical section of occiput; clypeus with anterior margin sharply angulate ( Fig. 23 ). Antenna ( Fig. 22 ) with length of pedicel plus flagellum 1.2× head width (62:50); scape extending to level of median ocellus, slightly flattened, but anterior edge rounded; flagellum slender, with sides parallel; relative lengths of scape, pedicel, A1–2, F1-6, club as 25.0:10.0:4.0:6.5:6.0:5.5:5.5:5.0:5.0:5.0:11; A1 length about 2× width; widths of F1, F6, club as 3:3:4; F1–5 appearing elongate, F6 quadrate. Mesosomal length 1.8× width (88:49); dorsal microsetae relatively dense, reclinate and arched so that tips closer to cuticle of dorsum than middle of seta; propodeum smoothly arched from side to side. Fore wing length 2.9× width (208:72); relative lengths of submarginal, marginal, postmarginal, and stigmal veins as 75:41:44:29. Gaster long ovate; length 2.1× width (94:45), 0.92× combined length of head and mesosoma (94:102).

Allotype, male. Similar to female except: head and mesosoma more yellowish, only anterior parts of mesoscutum orangey; occiput dark brown laterally; gaster dark brown. Body length 2.5 mm. Antenna with length of pedicle plus flagellum 1.3× head width (60:47); relative length of scape, pedicel, A1–2, F1–6, club as 23.0:9.0:5.0:5.5:5.5:5.5:5.0:4.5:4.5:4.5:11.0; relative widths of F1, F6, club as 3:4:4. Gaster length 1.7× width (70:41).

Variation. The females from Chiloé Island have a brownish triangular macula extending posteriorly from the stigma. This variation is similar to that found in L. australis where some individuals have a similar macula on the wing and some do not.

Type material. Holotype ( MNNC) and allotype male ( UCDC) were collected in CHILE, XII REGIÓN, El Manzano, 12.X.1999, by T. Cekalovic. An additional five paratype females were collected at Pindapulli, Isla Chiloé (X REGIÓN) on 13.II.1999 by T. Cekolovic ( EMEC, MNNC, UCDC).

Etymology. This species is named in honor of Mr. Donald Bockler, an award winning biology teacher at Arlington High School (Arlington, Massachusetts) who inspired many students to pursue careers in the sciences.

Figures

FIGURES 16 – 21. Lanthanomyia spp. 16. Lanthanomyia bockleri n. sp., ♀ PT body. 17. Lanthanomyia bouceki Heydon, light form, ♀ body. 18. Lanthanomyia bouceki Heydon, dark form, ♀ body. 19. Lanthanomyia pardos n. sp., ♀ PT body. 20. Lanthanomyia tigrita Heydon, ♀ PT body. 21. Lanthanomyia tigrita Heydon, ♀ PT propodeum and first gastral tergite.

FIGURES 22 – 27. Lanthanomyia spp. 22. Lanthanomyia bockleri n. sp., female HT antenna. 23. Lanthanomyia bockleri n. sp., female HT head (anterior view). 24. Lanthanomyia bockleri n. sp., female HT head and pronotum. 25. Lanthanomyia pardos n. sp., female HT vertex. 26. Lanthanomyia pardos n. sp., female HT head (anterior view). 27. Lanthanomyia pardos n. sp., female HT antenna.