Diglyphomorphomyia Girault 1913
Creators: name: Hansson, Christer
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eulophidae
Diglyphomorphomyia

description: Diglyphomorphomyia Girault, 1913
Diglyphomorphomyia Girault, 1913:281. Type species Diglyphomorphomyia nigriscutellum Girault, 1913:281, by original designation.
Elachertus (Neolachertus) Narendran, 2004:129–130. Type species Elachertus nexius Narendran, 2004:130–132, by original designation and monotypy. Synonymized by Narendran et al. (2005b:33).
Diagnosis. Mandibles with two large teeth at apex and with a row of four small teeth above these (Fig. 25). Occipital margin with sharp edge (Figs 5, 6). Mesoscutellum with sublateral grooves consisting of pit-rows, grooves either converging in posterior part and joining posteromedially (Fig. 13) or missing in posteromedian part (Fig. 6), lateral part of grooves either ±straight (Fig. 9) or distinctly sinuate and converging medially (Fig. 4). Dorsellum with small dents along posterior margin (Fig. 37). Propodeum (Figs 37, 38) with complete plicae, callus with a longitudinal, complete and sharp carina in median part, carina ending in a blunt spine posteriorly, and with 5–9 setae in a single row along carina; supracoxal flange large and ±transparent (Figs 37, 38). Fore wing with postmarginal vein 1.0–1.4× as long as stigmal vein. Gaster with dorsal part of Gt 1 strongly expanded backwards with posterior margin semicircular (Fig. 13), covering about one-half of gaster, and with distinct groove in anterior-median part (Figs 6, 23). All species from the Old World have deep punctures or foveae on mesoscutum and mesoscutellum, but these are not present in Neotropical species of the genus.
Description of Neotropical Diglyphomorphomyia. Eyes hairy; malar sulcus present; clypeus convex, with ventral margin protruding and rounded, part just above clypeus with strong reticulation; mandibles with two large teeth at apex and with a row of four small teeth above these; antennal scrobes undelimited; occipital margin with a sharp edge. Antenna inserted just above lower level of eyes, scape not reaching anterior ocellus; male scape not enlarged, as narrow as in female; with six flagellomeres: four funiculars and two clavomeres, funiculars with a short to long stalk in anterior part, female with one small anellus, no anellus visible in male; male with unbranched flagellomeres. Pronotum short, with or without a carina along anterior margin of pronotal collar. Mesoscutum with narrow and complete notauli; midlobe with 2–4 pairs of setae. Mesoscutellum with sublateral grooves consisting of pit-rows, grooves either converging and joining posteromedially, or missing in posteromedian part, with two pairs of long and strong setae, attached just lateral to sublateral grooves close to lateral margin of mesoscutellum, one pair in median part and one pair close to posterior margin. Axillae advanced forward just slightly in front of transscutal articulation. Dorsellum with small dents along posterior margin. Propodeum with a strong and complete median carina with a large ±semicircular cup in very anterior part; with complete plicae; propodeal callus with a longitudinal, sharp and complete carina in median part, carina ending in a blunt spine posteriorly, with 5–9 setae in a single row along carina; supracoxal flange large and ±transparent. Fore wing with 3–9 setae on dorsal surface of submarginal vein; speculum present, closed below and towards base of wing; costal cell with a ±complete row of setae on ventral surface or with scattered setae, and with 3–25 setae along apico-dorsal margin; with a row of 9–20 admarginal setae below ±entire marginal vein on ventral side of membrane; postmarginal vein 1.0–1.4× as long as stigmal vein. Hind leg with two short tibial spurs, longest spur about half as long as T1. Petiole as a narrow band to transverse with strong sculpture on dorsal surface. Gastral tergites ±strongly sclerotized, non-collapsing, smooth or with very weak reticulation and shiny; dorsal part of Gt 1 strongly expanded backwards with posterior margin semicircular, covering about one half of gaster.
Distribution. Australia (Girault 1913, 1915), China (Zhu and Huang 2003, Fan and Li 2022), India (Narendran 2004, 2011, Narendran et al. 2005a, 2005b), Indonesia (Ubaidillah 2003), Korea (Bouček 1988), Malaysia (Bouček 1988), Papua New Guinea (Bouček 1988), Sri Lanka (Motschulsky 1863), Taiwan (Zhu and Huang 2003), Uganda (Bouček 1988), Yemen (Yefremova 2007). Neotropical species of Diglyphomorphomyia are this far recorded from Central America, from Belize to Costa Rica. The actual distribution in the Neotropical region is very probably much larger, including also tropical parts of South America.
Biology. An undescribed species of this genus was reared in Uganda from a stem borer (presumably a Lepidoptera) on Physalis (Solanaceae) (Bouček 1988). Thompson (1955) recorded D. rufescens (Motschulsky) from Saissetia coffeae (Walker) (Hemiptera: Coccidae), but this is a mistake, a misreading from Motschulsky (1863). The record for S. coffeae is for the species that follows after D. rufescens, Encyrtus? nietneri Motschulsky (now Microterys nietneri (Motschulsky)).
Diglyphomorphomyia belongs in the “ Elachertus complex” (see discussion), and species of Elachertus and some related genera are primary parasitoids on larvae of various Lepidoptera groups living in concealed situations (Schauff 1985a, 1985b, Schauff et al. 1997). The record from Physalis agrees with this ecology.
Key to species
1. Females (the female is unknown for D. carinifer)............................................................ 2
- Males (males are unknown for D. albiclava, D. albicoxa, D. cristata, D. metallica, D. parva)......................... 9
2. Pronotal collar with a carina along anterior margin (Figs 4, 8).................................................. 3
- Pronotal collar without a carina along anterior margin (e.g. Figs 2, 16)........................................... 4
3. Fore and hind coxae yellowish-brown (Fig. 7)................................................ D. cristata sp. nov.
- All coxae white (Fig. 3)................................................................. D. albicoxa sp. nov.
4. Head yellowish-brown (Fig. 25).......................................................... D. albiclava sp. nov.
- Head dark brown to black (with or without metallic tinges).................................................... 5
5. Head black with metallic blue tinges (Figs 9, 28)............................................ D. metallica sp. nov.
- Head dark brown to black, not metallic (e.g. Fig. 31)......................................................... 6
6. Mesosoma predominantly yellowish-brown (Figs 12, 16)...................................................... 7
- Mesosoma dark brown to black (Figs 6, 13)................................................................ 8
7. Large species (2.9mm); costal cell with 15 setae along apico-dorsal margin (Figs 15, 16)................ D. pilosa sp. nov.
- Small species (0.9–1.4mm); costal cell with 2–4 setae along apico-dorsal margin (Figs 11, 12)........... D. parva sp. nov.
8. Hind coxa white (Fig. 14); propodeum without costula (Fig. 37).............................. D. pedunculata sp. nov.
- Hind coxa dark brown (Fig. 5); propodeum with costula (Fig. 6)................................ D. costulata sp. nov.
9. Antennal funiculars strongly pedunculate (Fig. 20), e.g. stalk in anterior part on F4 ca 0.8× as long as width flagellomere...................................................................................... D. pedunculata sp.nov
- Antennal funiculars weakly pedunculate (e.g. Fig. 36), e.g. stalk in anterior part on F4 at most 0.2× as long as width flagellomere............................................................................................. 10
10. Pronotal collar with a carina along anterior margin (Fig. 18).................................... D. carinifer sp. nov.
- Pronotal collar without a carina along anterior margin (Figs 22, 23)............................................. 11
11. Flagellomeres with long setae, about as long as flagellomere they are attached to (Fig. 35); propodeum with costula (Fig. 23)................................................................................... D. costulata sp. nov.
- Flagellomeres with short setae, much shorter than flagellomere they are attached to (Fig. 36); propodeum without costula (Fig. 22).................................................................................... D. pilosa sp. nov.
description: Published as part of Hansson, Christer, 2022, Diglyphomorphomyia Girault (Chalcidoidea: Eulophidae) new to the Neotropical region including nine new species, pp. 321-340 in Zootaxa 5141 (4) on pages 322-323, DOI: 10.11646/zootaxa.5141.4.2, http://zenodo.org/record/6592888