Enicospilus erythrocerus (Cameron, 1905)

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 : 51-53

Enicospilus erythrocerus (Cameron, 1905)

Fig. 24

Pleuconeurophion erythrocerus Cameron, 1905a: 121 ; holotype ♀ from Sri Lanka ( NHMUK).

Allocamptus orientalis Uchida, 1928: 230 ; lectotype ♀ from Okinawa, designated by Gauld & Mitchell 1981: 175 (SEHU), examined; synonymised by Townes et al. 1961: 275; junior secondary homonym of Enicospilus orientalis ( Morley, 1913) .

Enicospilus hirayamai Uchida, 1955: 120 ; replacement name for Enicospilus orientalis ( Uchida, 1928) .

Enicospilus erythrocerus – Townes et al. 1961: 277.

Diagnosis

Interocellar area reddish brown; clypeus flat to weakly convex, ventral margin subacute to blunt; mandible short, twisted ca 80°, outer surface without a diagonal setose groove; fore wing fenestra without any sclerites, vein 2r&RS sinuous.

Material examined

VIETNAM • 1 ♂; Thai Nguyen Province, Dai Tu, Cat Ne ; 25–30 Sep. 2007; Khuat D.L. leg; Malaise trap; IEBR • 1 ♀; same collection data as for preceding; 15–20 Nov. 2007; Malaise trap; IEBR • 1 ♀; same collection data as for preceding; 5–10 Dec. 2007; Malaise trap; IEBR • 3 ♀♀, 1 ♂; Phu Tho Province, Xuan Son, Xuan Dai ; 5–10Apr. 2009; Khuat D.L. leg.; Malaise trap; IEBR • 1 ♂; same collection data as for preceding; 10–15 May 2009; Malaise trap; IEBR • 1 ♀; same collection data as for preceding; 15–20 Jul. 2009; Malaise trap; IEBR • 1 ♀; same collection data as for preceding; 20–25 Jul. 2009; Malaise trap; IEBR • 1 ♀; same collection data as for preceding; 1–5 Aug. 2009; Malaise trap; IEBR • 1 ♀, 1 ♂; Bac Giang Province, Tay Yen Tu NR ; 3–5 Jul 2010; Pham T.N. leg.; Malaise trap; IEBR • 1 ♂; Vinh Phuc Province, Tam Dao NP ; 21°26.5′ N, 105°37′ E; 400 m a.s.l.; emerged from an Arctiid larva on 25 May 2013; Dang T.H. leg.; IEBR • 1 ♀; Nghe An Province, Khe Choang ; 18°57′20.7″ N, 104°41′1.4″ E; 192 m a.s.l.; 8 May 2017; Hoang V.T. leg.; light trap; IEBR • 1 ♀; Vinh Phuc Province, Me Linh Station for Biodiversity ; Jun.–Jul. 2018; Pham H.P. leg.; Malaise trap; IEBR • 1 ♂; same locality as for preceding; 10 May 2020; Tran D.D. leg.; Malaise trap; IEBR • 1 ♀; same collection data as for preceding; 20 May 2020; Malaise trap; IEBR • 1 ♀; Hoa Binh Province, Luong Son, Thanh Lap ; 25 Feb.–5 Mar. 2019; Nguyen D.H. leg.; Malaise trap; IEBR • 1 ♀; Lao Cai Province, Bat Xat NR ; 22°37′37″ N, 103°37′32″ E; 1840 m a.s.l.; 28 May 2022; Pham T.N. and Dang T.H. leg.; light trap; IEBR .

Remarks

Vietnamese specimens have mandible torsion ca 80°, more strongly twisted than the specimens examined by Gauld & Mitchell (1981) (40°–45°). One specimen from Tam Dao NP, Vinh Phuc Province was reared from an unidentified arctiine caterpillar ( Lepidoptera : Erebidae : Arctiinae) ( Fig. 25 ).

Distribution

Previously known from Brunei, China (including Taiwan), India, Indonesia, Japan, Malaysia, Myanmar, Philippines, Singapore, Sri Lanka, and Vietnam ( Yu et al. 2016; Pham & Khuat 2016).

Figures

Fig. 24. Enicospilus erythrocerus (Cameron, 1905), ♀ (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.

Fig. 25. A cocoon of Enicospilus erythrocerus (Cameron, 1905) from Tam Dao NP, Vinh Phuc Province, Vietnam. Photo: Hoa Dang.