Diglyphomorphomyia carinifer, Hansson, 2022

Hansson, Christer, 2022, Diglyphomorphomyia Girault (Chalcidoidea: Eulophidae) new to the Neotropical region including nine new species, Zootaxa 5141 (4), pp. 321-340 : 325-326

Diglyphomorphomyia carinifer sp. nov.

Figs 17, 18 , 33

Diagnosis. Head, including antennal flagellum, and mesosoma dark brown to black ( Fig. 18 ), legs with coxae, trochanters and femora dark brown, tibiae and tarsi yellowish-brown ( Fig. 17 ), fore wing infumate with part below stigmal vein dark brown ( Figs 17, 18 ), Gt 1 yellowish-brown, Gt 2–7 dark brown ( Fig. 18 ); antenna with F2–4 (excluding apical stalk) about as long as wide with a short stalk in anterior part ( Fig. 17 ); pronotal collar with a carina along anterior margin ( Fig. 18 ); midlobe of mesoscutum with three pairs of long and strong setae ( Fig. 18 ); mesoscutellum with sublateral grooves joining in posterior part ( Fig. 18 ); propodeum smooth ( Fig. 18 ).

Description (male holotype). Length 1.5mm. Frons and vertex with weak reticulation. Pronotal collar with a carina along anterior margin. Mesoscutum and mesoscutellum with weak reticulation; midlobe of mesoscutum with three pairs of long and strong setae; mesoscutellum with sublateral grooves joining in posterior part. Dorsellum and propodeum smooth; propodeal callus with six setae. Fore wing with six setae on dorsal surface of submarginal vein; with 12 admarginal setae; costal cell with a row of seven setae on ventral surface, apico-dorsal margin with three setae. Gaster short ovate.

Colour. Head dark brown to black. Antennae dark brown. Mesosoma dark brown to black. Legs with coxae, trochanters and femora dark brown, tibiae and tarsi yellowish-brown. Fore wing infumate with part below stigmal vein dark brown. Petiole black. Gaster with Gt 1 yellowish-brown, Gt 2–7 dark brown.

Relative measurements. Head: length in dorsal view 15; length in frontal view 26; width 35; POL 8.5; OOL 4; mouth width 12; malar space 8; eye height 16.5; scape length 14; scape width 3; pedicel+flagellum length 45; F1 length 8; F2 length 7; F3 length 7; F4 length 7; antennal clava length 11; F1 width 4; F2 width 5; F3 width 5.5; F4 width 6; antennal clava width 5.5. Mesosoma: length 50; width 30; midlobe of mesoscutum length 19; mesoscutellum length 20; mesoscutellum width 14.5; dorsellum length 2; propodeum length 10; mid tarsus length 21; mid tarsus T4 length 4; hind tarsus length 21; hind tarsus T4 length 4.5; fore wing length 70; fore wing width 45; costal cell length 26; costal cell width 2; marginal vein length 29; postmarginal vein length 10; stigmal vein length 10. Gaster: length 47; width 27; Gt 1 length 24.

Variation in paratypes. Length 1.1–1.7mm. Scape pale brown to dark brown. Hind tibia and tarsus yellowishbrown to dark brown. Otherwise as in holotype.

Female. Unknown.

Remarks. The sharp carina along anterior margin of the pronotal collar is a distinctive feature for this species. Two other species, D. albicoxa and D. cristata , described from females (males unknown) also have this feature. Specimens of both these species are predominantly yellowish-brown, while specimens of D. carinifer are dark brown to black. While the colour of head and mesosoma might differ between the sexes of the same species (see D. pilosa ) and are thus unreliable characters when associating conspecific females and males, the dark areas in the fore wing are similar in both sexes. Diglyphomorphomyia albicoxa and D. cristata both have two distinct dark brown areas in the fore wing, one below marginal vein and one below stigmal vein ( Figs 3 , 7 ), while D. carinifer has only part below stigmal vein dark ( Fig. 17 ). Thus D. carinifer is not conspecific with either D. albicoxa or D. cristata .

Distribution. Costa Rica, Honduras.

Etymology. From the Latin carina = keel, and the suffix – fer = carry, referring to the pronotal carina.

Material. Holotype male: COSTA RICA, Puntarenas, Estación Altamira, Sendero a Casa Coca , 9º02’N, 83º00’W, 1450–1700m, 7.ii–5.iii.2002, C. Hansson & Parataxonomos ( MZLU) . Paratypes (53♂, CNC, MZLU, MZUCR, NHMUK) : 48♂ COSTA RICA, Puntarenas, Estación Altamira, Sendero a Casa Coca , Sendero Los Gigantes & Estación , 9º02’N, 83º00’W, 1450–1700m, 7.ii–5.iii.2002, C. Hansson & Parataxonomos ; 1♂ COSTA RICA, Alajuela, Parque Nacional Arenal , 10º28’N, 84º45’W, 617m, 21–28.ii.2005, C. Hansson ; 1♂ COSTA RICA, Cartago, Parque Nacional Tapantí , 9º45’N, 83º47’W, 1200–1550m, 20.iii–10.iv.2000, swept, C. Hansson & D. Rubí ; 1♂ COSTA RICA, San José, San Pedro, University of Costa Rica Campus , 1200m, 28.ii.1997, C. Hansson ; 2♂ HONDURAS, Cortés, Parque Nacional San Cusuco , 5km N Buenos Aires, 15º29’N, 83º13’W, 8.iii.1997, C. Hansson .

Figures

FIGURES 17–20. Diglyphomorphomyia spp. nov., males; 17–18. D. carinifer; 17 body in lateral view, holotype; 18 body in dorsal view, paratype; 19–20. D. pedunculata; 19 body in dorsal view, paratype; 20 body in lateral view, paratype.

FIGURES 31–36. Diglyphomorphomyia spp. nov., head in frontal view; 31 D. pilosa, female holotype; 32 D. costulata, female paratype; 33 D. carinifer, male paratype; 34 D. pedunculata, male paratype; 35 D. costulata, male paratype; 36 D. pilosa, male paratype.

FIGURES 1–4. Diglyphomorphomyia spp. nov., females; 1–2. D. albiclava; 1 body in lateral view, paratype; 2 body in dorsal view, holotype; 3–4. D. albicoxa; 3 body in lateral view, paratype; 4 body in dorsal view, holotype.

FIGURES 5–8. Diglyphomorphomyia spp. nov., females; 5–6. D. costulata; 5 body in lateral view, holotype; 6 body in dorsal view, holotype; 7–8. D. cristata; 7 body in lateral view, paratype; 8 body in dorsal view, holotype.