Eriastichus

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Taxonavigation

Ordo: Hymenoptera
Familia: Eulophidae

Name

Eriastichus La Salle – Wikispecies link – Pensoft Profile

• [[ | ]] La Salle 1994: 173–174. Type species Eriastichus cigdemae La Salle.

Diagnosis

Heavily setose species (Figs 1, 2, 5, 6): head (including eyes), pronotum, mesoscutum, coxae, and lateral parts of propodeum (excl. bare median part – hairy only in E. masneri La Salle) ± covered with fine, short setae; malar sulcus curved; base of scape oblique (e.g., Fig. 45); F1–F4 of male antenna with scattered setae of varying length (Figs 11–58), i.e., without a compact whorl of long setae attached close to base – a feature present in many tetrastichine groups; mesoscutellum transverse (Figs 5–6); dorsellum large, flat to slightly convex and smooth (Fig. 5); fore wing with postmarginal vein 0.3–0.7 × as long as the elongate and slender stigmal vein, wing disc strongly setose, including base (i.e., without speculum) and ventral surface of costal cell (Fig. 4), wings ±uniformly but weakly infuscate (Fig. 4) but in a few species hyaline; gaster with pleural membrane between Gt1-4 and Gs1-4 inflated (Figs 1–3, 7, 8); both sexes with a tuft of pale and flattened setae laterally on Gt3-6 (Figs 7–10), though most species with tufts only on Gt6.

Key to males

Key to males — C. Hansson

1		Mesoscutellum with parts lateral to submedian grooves strongly setose (Fig. 6)    2
–		Mesoscutellum with parts lateral to submedian grooves with two or three pairs of strong setae (Fig. 5)    3
2		Median propodeum hairy (La Salle 1994: fig. 30)    E. masneri La Salle (male unknown, this is an anticipated placement; not recorded from Costa Rica)
–		Median propodeum bare (as in Fig. 5)    E. nakos La Salle (male unknown, this is an anticipated placement; not recorded from Costa Rica)
3		Scape 1.3–1.4 × as long as ventral plaque (Fig. 50); lower face yellowish brown (Fig. 59)    E. pallidops sp. nov.
–		Scape 1.7–8.0 × as long as ventral plaque; colour of lower face variable    4
4		Scape 5.3–8.0 × as long as ventral plaque    5
–		Scape 1.7–5.0 × as long as ventral plaque    9
5		Antenna with dorsobasal setae on F1 0.5 × as long as length of F1 (Fig. 15), pedicel + flagellum 2.0 × as long as width of head    E. copalensis sp. nov.
–		Antenna with dorsobasal setae on F1 at least 1.1 × as long as length of F1, pedicel + flagellum at most 1.6 × as long as width of head    6
6		Scape 8.0 × as long as ventral plaque (Fig. 57), and 1.4 × as long as height of eye    E. tonioazofeifai sp. nov.
–		Scape at most 6.7 × as long as ventral plaque, and at most 0.9 × as long as height of eye    7
7		Antennal flagellum longer (Fig. 11), e.g., F1 2.5 ×, F4 2.8 ×, clava 7.3 × as long as wide    E. acribis sp. nov.
–		Antennal flagellum shorter, F1 1.5–1.7 ×, F4 2.0 ×, clava 4.8–5.2 × as long as wide    8
8		Setae on flagellomeres more erect, and dorsobasal setae on F1 1.5 × as long as length of F1 (Fig. 12)    E. cluridis sp. nov.
–		Setae on flagellomeres less erect, and dorsobasal setae on F1 1.1 × as long as length of F1 (Fig. 16)    E. coelotis sp. nov.
9		Scape 1.3 × as long as height of eye (Fig. 14)    E. colenis sp. nov.
–		Scape at most 1.0 × as long as height of eye    10
10		Scape dark brown    11
–		Scape yellowish brown to pale brown    17
11		Dorsobasal setae on F1 0.8–1.1 × as long as length of F1    12
–		Dorsobasal setae on F1 0.4–0.6 × as long as length of F1    14
12		Ventral plaque on scape situated medially (Fig. 37)    E. johnlasallei sp. nov.
–		Ventral plaque on scape situated below the middle (Figs 17, 20)    13
13		Each flagellomere with few setae, e.g., F1 with six setae, ventral plaque 0.2 × as long as length of scape (Fig. 17)    E. daptilis sp. nov.
–		Each flagellomere with more setae, e.g., F1 with ca. 15 setae, ventral plaque 0.4 × as long as length of scape (Fig. 20)    E. dotaensis sp. nov.
14		Flagellomeres longer, F1, F3, F4 each 3.7 ×, F2 4.0 × as long as wide (Fig. 18)    E. decoris sp. nov.
–		Flagellomeres shorter, F1 2.0–3.5, F2 2.4–3.5, F3 2.1–3.4, F4 2.3–3.4 × as long as wide    15
15		Fore and mid legs with coxae and femora yellowish brown    E. denotatis sp. nov.
–		Fore and mid legs with coxae and femora dark brown    16
16		Ventral plaque 0.5 × as long as length of scape (Fig. 22)    E. diadrys sp. nov.
–		Ventral plaque 0.3 × as long as length of scape (Fig. 23)    E. ebulis sp. nov.
17		Dorsobasal setae on F1 ca. 2 × as long as F1    E. cigdemae La Salle
–		Dorsobasal setae on F1 at most 1.5 × as long as F1    18
18		Dorsobasal setae on F1 at least 1.2 × as long as F1, and setae on flagellomeres erect (Figs 24, 27)    19
–		Dorsobasal setae on F1 at most 1.0 × as long as F1, setae on flagellomeres variable    20
19		Antenna shorter (Fig. 24), pedicel + flagellum 1.1 × as long as width of head    E. egrestis sp. nov.
–		Antenna longer (Fig. 27), pedicel + flagellum 1.6–1.7 × as long as width of head    E. eleagnis sp. nov.
20		Scape 4.5–5.0 × as long as ventral plaque    21
–		Scape 1.8–4.2 × as long as ventral plaque    24
21		Ventral plaque situated medially (Fig. 25)    E. ellipsis sp. nov.
–		Ventral plaque situated below median part of scape    22
22		Dorsobasal setae on F1 0.6 × as long as length of F1 (Fig. 40)    E. johnnoyesi sp. nov.
–		Dorsobasal setae on F1 0.9–1.0 × as long as length of F1 (Figs 28, 31)    23
23		Antenna with F1–F4 each 3.3–3.5 × as long as wide, setae on flagellomeres less erect (Fig. 31)    E. eminis sp. nov.
–		Antenna with F1–F4 1.8–2.5 × as long as wide, setae on flagellomeres more erect (Fig. 28)    E. facilis sp. nov.
24		Scape 1.7–2.0 × as long as ventral plaque    25
–		Scape 2.2–4.2 × as long as ventral plaque    28
25		Setae on flagellomeres more erect, scape dark brown (Fig. 29)    E. fenestris sp. nov.
–		Setae on flagellomeres less erect, scape yellowish brown to pale brown    26
26		Antenna with F1–F4 each 2.0 × and clava 4.3 × as long as wide (Fig. 21)    E. derilis sp. nov.
–		Antenna with F1–F4 each 2.7–3.0 × and clava 5.5–6.3 × as long as wide (Figs 13, 30)    27
27		Flagellomeres with more setae, e.g., F2 with eight setae on dorsal surface (Fig. 13)    E. aphritis sp. nov.
–		Flagellomeres with less setae, e.g., F2 with four setae on dorsal surface (Fig. 30)    E. follis sp. nov.
28		Frons and legs yellowish brown    E. sannionis sp. nov.
–		Frons partly to completely dark brown, legs yellowish brown to dark brown    29
29		Coxae and femora predominantly to completely dark brown    30
–		Coxae and femora ±yellowish brown, some coxae or hind femur can be partly dark brown    33
30		Setae on flagellomeres erect (Figs 34, 58)    31
–		Setae on flagellomeres less erect than in alternate (Figs 33, 56)    32
31		Scape narrow at base (Fig. 34)    E. galeatis sp. nov.
–		Scape wide at base (Fig. 58)    E. vestis sp. nov.
32		Flagellomeres with few setae, e.g., F2 with three setae on dorsal surface (Fig. 56)    E. velaminis sp. nov.
–		Flagellomeres with more setae, e.g., F2 with eight setae on dorsal surface (Fig. 33)    E. geratis sp. nov.
33		Scape 3.5–4.2 × as long as ventral plaque    34
–		Scape 2.2–3.1 × as long as ventral plaque    37
34		Dorsobasal setae on F1 0.5–0.6 × as long as F1 (Figs 32, 36)    35
–		Dorsobasal setae on F1 0.8–1.0 × as long as F1 (Figs 39, 41)    36
35		Flagellomeres with more setae, e.g., F2 with eight setae on dorsal surface (Fig. 32)    E. glanis sp. nov.
–		Flagellomeres with fewer setae, e.g., F2 with five setae on dorsal surface (Fig. 36)    E. maniatis sp. nov.
36		Setae on flagellomeres more erect (Fig. 39)    E. neonis sp. nov.
–		Setae on flagellomeres less erect (Fig. 41)    E. nexilis sp. nov.
37		Ventral plaque situated below middle of scape    38
–		Ventral plaque situated in the middle, or slightly above the middle    44
38		Scape 2.2–2.5 × as long as ventral plaque    39
–		Scape 2.8–3.1 × as long as ventral plaque    40
39		Dorsobasal setae on F1 1.0 × as long as F1 (Fig. 44)    E. novalis sp. nov.
–		Dorsobasal setae on F1 0.5–0.6 × as long as F1 (Fig. 42)    E. oasis sp. nov.
40		F2–F4 each 2.3 × as long as wide (Fig. 26)    E. drupis sp. nov.
–		F2–F4 each at least 3.0 × as long as wide    41
41		Flagellomeres longer, e.g., F2 3.6–3.8 × as long as wide (Figs 38, 43)    42
–		Flagellomeres shorter, F2 3.0–3.2 × as long as wide    43
42		Dorsobasal setae on F1 0.9 × as long as F1 (Fig. 43)    E. ononis sp. nov.
–		Dorsobasal setae on F1 0.6 × as long as F1 (Fig. 38)    E. nebulis sp. nov.
43		Dorsobasal setae on F1 0.5 × as long as F1, scape dark brown (Fig. 46)    E. parabilis sp. nov.
–		Dorsobasal setae on F1 0.9 × as long as F1, scape yellowish brown (Fig. 49)    E. orestis sp. nov.
44		Dorsobasal setae on F1 0.5 × as long as F1 and pedicel + flagellum 1.9 × as long as width of head    45
–		Dorsobasal setae on F1 at least 0.6 × as long as F1 and/or pedicel + flagellum at most 1.7 × as long as width of head    46
45		Setae on flagellomeres more erect (Fig. 47)    E. rivalis sp. nov.
–		Setae on flagellomeres less erect (Fig. 45)    E. nugalis sp. nov.
46		Dorsobasal setae on F1 0.4 × as long as F1 (Fig. 35) and pedicel + flagellum 1.7 × as long as width of head    E. hilaris sp. nov.
–		Dorsobasal setae on F1 0.6–1.0 × as long as F1, if dorsobasal setae on F1 is only 0.6 × as long as F1, then pedicel + flagellum are 1.5 × as long as width of head    47
47		Antennal flagellum long and slender (Fig. 54), e.g., F4 3.4 × and clava 7.6 × as long as wide    E. renodis sp. nov.
–		F4 2.2–2.8 × and clava 4.8–6.3 × as long as wide    48
48		Dorsobasal setae on F1–F4 1.0 × as long as funicular segment it is attached to (Fig. 52)    E. scalaris sp. nov.
–		Dorsobasal setae on F1–F4 0.6–0.8 × as long as funicular segment it is attached to    49
49		Antennal flagellum more slender (Fig. 53), e.g., F3 3.0 × and clava 6.3 × as long as wide    E. taraxis sp. nov.
–		F3 2.3–2.6 × and clava 4.8–5.8 × as long as wide    50
50		Pedicel + flagellum 1.9 × as long as width of head    E. sodalis sp. nov.
–		Pedicel + flagellum 1.5–1.7 × as long as width of head    E. tendrilis sp. nov.

Species treatments

Taxon Treatment

• Hansson, C; 2021: The genus Eriastichus La Salle (Hymenoptera, Eulophidae, Tetrastichinae) in the Neotropical region, introducing 48 new species ZooKeys, 1019: 35-91. doi

Images

Figures 1–6. Eriastichus spp. 1E. eleagnis, body in lateral view, male paratype 2E. sp., body in lateral view, female 3E. decoris, gaster in lateral view, male holotype 4E. sp., right fore wing, female 5E. fenestris, body in dorsal view, male holotype 6E. sp., thoracic dorsum, female.  Figures 7–10. Eriastichus spp. 7, 8 gaster in lateral view: 7E. sp., female 8E. ebulis, male paratype 9, 10 Gt6 in lateral view, with brush of flattened setae: 9E. sp., female 10E. ebulis, male paratype.  Figures 11–17. Eriastichus spp. head and antenna in lateral view, male holotypes 11E. acribis12E. cluridis13E. aphritis14E. colenis15E. copalensis16E. coelotis17E. daptilis.  Figures 18–27. Eriastichus spp. head and antenna in lateral view, male holotypes 18E. decoris19E. denotatis20E. dotaensis21E. derilis22E. diadrys23E. ebulis24E. egrestis25E. ellipsis26E. drupis27E. eleagnis.  Figures 28–34. Eriastichus spp. head and antenna in lateral view, male holotypes 28E. facilis29E. fenestris30E. follis31E. eminis32E. glanis33E. geratis34E. galeatis.  Figures 35–40. Eriastichus spp. head and antenna in lateral view, male holotypes 35E. hilaris36E. maniatis37E. johnlasallei38E. nebulis39E. neonis40E. johnnoyesi.  Figures 41–50. Eriastichus spp. head and antenna in lateral view, male holotypes 41E. nexilis42E. oasis43E. ononis44E. novalis45E. nugalis46E. parabilis47E. rivalis48E. sodalis49E. orestis50E. pallidops.  Figures 51–56. Eriastichus spp. head and antenna in lateral view, male holotypes 51E. sannionis52E. scalaris53E. taraxis54E. renodis55E. tendrilis56E. velaminis.  Figures 57–60. Eriastichus spp. 57, 58 head and antenna in lateral view, male holotypes: 57E. tonioazofeifai58E. vestis; 59, 60 head in frontal view, male holotypes: 59E. pallidops60E. denotatis.