Enicospilus acutus Shimizu, 2020

Pham, Nhi Thi, Pham, Phu Van, Matsumoto, Rikio, Shimizu, So & Broad, Gavin R., 2023, A review of the genus Enicospilus Stephens (Ichneumonidae: Ophioninae) from Vietnam, with descriptions of ten new species, European Journal of Taxonomy 873 (1), pp. 1-151 : 16-19

Enicospilus acutus Shimizu, 2020

Fig. 5

Enicospilus acutus Shimizu in Shimizu et al., 2020: 36 ; holotype ♀ from Japan ( MNHA) .

Diagnosis

Interocellar area yellowish brown; clypeus weakly convex, ventral margin acute; mandible twisted 80°– 85°, outer surface without a diagonal setose groove, two teeth equal in length, upper tooth stouter than lower one; fore wing darkened anteriorly, fenestra with proximal, central and distal sclerites; mesoscutum with median lobe and posterior half black.

Material examined

VIETNAM • 1 ♂; Dong Nai Province, Vinh Cuu, Ma Da ; 18 May 2007; Hoang V.T. leg.; light trap; IEBR • 1 ♀; Vinh Phuc Province, Me Linh Station for Biodiversity ; 4 Jun. 2010; Hoang V.T. leg.; light trap; IEBR • 1 ♀; Lam Dong Province, Bidoup - Nui Ba NP; 3 Jun. 2013; Hoang V.T. leg.; light trap; IEBR • 1 ♀; Quang Ninh Province, Dong Son - Ky Thuong NR; 26 Jul. 2020; Hoang V.T. leg.; light trap; IEBR • 1 ♀; Cao Bang Province, Phia Oac - Phia Den NP; 22°35′18.2″ N, 105°52′33.2″ E; 1200 m a.s.l.; 22 May 2020; Hoang V.T. and Pham V.P. leg.; light trap; IEBR • 2 ♀♀; same locality as for preceding; 22°35.305′ N, 105°52.552′ E; 1216 m a.s.l.; 23 May 2020; Hoang V.T. and Pham V.P. leg.; light trap; IEBR • 2 ♀♀; same collection data as for preceding; 24 May 2020; IEBR • 1 ♀; same locality as for preceding; 3 Jun. 2020; Nguyen Q.C. leg.; light trap; IEBR • 1 ♀; Cao Bang Province, Nguyen Binh, Tinh Tuc ; 3 Jun. 2020; Nguyen D.H. leg.; light trap; IEBR • 2 ♀♀; Lao Cai Province, Bat Xat NR ; 22°37′37″ N, 103°37′32″ E; 1840 m a.s.l.; 29 May 2022; Pham T.N. and Dang T.H. leg.; light trap; IEBR • 1 ♀; Lai Chau Province, Sin Ho, Sa De Phin , 22°18′18″ N, 103°13′37″ E; 1760 m a.s.l.; 31 May 2022; Pham T.N. and Dang T.H. leg.; light trap; IEBR • 1 ♀; Lang Son Province, Huu Lien NR ; 1 Jun. 2022; Pham V.P. leg.; light trap; IEBR • 1 ♀; Ninh Binh Province, Cuc Phuong NP ; 8 Jun. 2022; Pham V.P. leg.; light trap; IEBR • 1 ♀; Hoa Binh Province, Mai Chau, Bao La ; 20.7046° N, 104.9720° E; 830 m a.s.l.; 3 Jul. 2022; Phan Q.T. leg.; light trap; IEBR .

Remarks

Vietnamese specimens have the fore wing length from 14.2 to 17.0 mm, slightly shorter than Japanese specimens (16.5–18.0 mm), CI = 0.28–0.34 (vs 0.40). Otherwise, specimens agree with the description by Shimizu et al. (2020).

Distribution

Previously known from Japan and Taiwan ( Shimizu et al. 2020). These are the first records of this species from Vietnam.

Figures

Fig. 5. Enicospilus acutus Shimizu, 2020, ♀ (IEBR). a. Habitus. b. Head, frontal view. c. Head, dorsal view. d. Head, lateral view. e. Mesosoma, lateral view. f. Central part of fore wing. Scale bars = 1.0 mm.