Enicospilus nigribasalis ( Uchida, 1928 )

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 : 93-96

Enicospilus nigribasalis ( Uchida, 1928)

Fig. 52

Henicospilus nigribasalis Uchida, 1928: 222 ; holotype ♀ from Taiwan ( SEHU) .

Enicospilus nigribasalis – Townes et al. 1961: 283.

Diagnosis

Interocellar area reddish brown; clypeus weakly convex, ventral margin subblunt; mandible moderately short, twisted ca 30°, outer surface without a diagonal setose groove; fore wing fenestra long, anterodistal corner interstitial to vein RS, proximal, central and distal sclerites present, central sclerite crescentic, formed from antero-distal margin of large quadra; body yellow-orange with black markings.

Material examined

VIETNAM • 1 ♀; Kon Tum Province, Mang Den, Mang Canh ; 5 Jun. 2019; Nguyen 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 • 1 ♀; same collection data as for preceding; 22°36.477′ N, 105°52.186′ E; 1605 m a.s.l.; 25 May 2020; light trap; IEBR .

Remarks

Antennae of Vietnamese specimens have 56–58 flagellomeres, slightly longer than those of specimens examined by Gauld & Mitchell (1981) (53–55 flagellomeres). Some fore wing indices of Vietnamese specimens are greater than those of specimens examined by Gauld & Mitchell (1981), such as AI = 0.83–1.0, CI = 0.2–0.43, SDI = 1.35–1.43 (vs 0.75–0.85, 0.2–0.25, 1.2–1.3, respectively), whereas ICI = 0.41–0.43, smaller in comparison to 0.44–0.59 in Gauld & Mitchell (1981).

Distribution

Previously known from China (including Taiwan), India, Japan, Philippines, and Sri Lanka ( Yu et al. 2016). These are the first records of this species from Vietnam.

Figures

Fig. 52. Enicospilus nigribasalis (Uchida, 1928), ♀ (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.