Chrysocryptus aureopilosus Cameron, 1902

Pham, Nhi Thi, Broad, Gavin R. & Achterberg, Cornelis van, 2019, A review of the genus Chrysocryptus Cameron (Ichneumonidae: Phygadeuontinae), with description of a new species, Raffles Bulletin of Zoology 67, pp. 60-66 : 61-62

Chrysocryptus aureopilosus Cameron, 1902

( Fig. 1 )

Chrysocryptus aureopilosa Cameron, 1902 . Jour. Straits Branch Roy. Asiatic Soc. Holotype: female ( NHMUK): Malaysia (Sarawak); NHMUK010880751 .

Material examined. Holotype female (as above); 1 female ( IEBR), VIETNAM: Vinh Phuc Province, Me Linh Station for Biodiversity, 200 m a.s.l., hand net, T.P.L. Nguyen coll., 27 May 2000; 1 female ( IEBR), VIETNAM: Nghe An Province, Anh Son, Phuc Son , hand net, H.X. Le coll., 22 April 2006; 1 female ( IEBR), VIETNAM: Ninh Binh Province, Trang An Landscape Complex, 20°15′4.1″ N, 105°53′10.8″ E, 16 m a.s.l., hand net, N. T. Pham coll., 21 June 2017; 1 male ( IEBR), same data, 23 June 2017; 1 male ( IEBR), same data, 12 June 2018; 1 female ( IEBR), same locality, 20°14′16.6″ N, 105°53′15.1″ E, 3 m a.s.l., N. T. Pham coll., 22 June 2017; 1 female ( NHMUK), INDONESIA, West Java, Tjitalahab Vill., Mt Djampang, K. M. Walsh coll., September 1937 ( NHMUK010880754 ); 1 male ( NHMUK), INDONESIA, West Java, Radjamandula, 200ft, Djampang Wetan, K. M. Walsh coll., March 1937 ( NHMUK010880755 ); 1 female ( NHMUK), MALAYSIA, Sarawak, Retuk, G. E. Bryant coll. 15 May 1914, ( NHMUK010880758 ) ; 1 male ( NHMUK), MALAYSIA, Selangor, Kanching Hill , 26 March 1939 ( NHMUK010880756 ) ; 1 female ( NHMUK), MALAYSIA, Sarawak, Gunung Mulu, N. M. Collins coll., March– April 1978, ( NHMUK010880757 ); 1 male ( NHMUK), MALAYSIA, Sarawak, Semongoh Forest Reserve, 1°25′ N, 110°17′ E, Malaise trap over stream, P. S. Cranston coll., 15- 19 October 1976, ( NHMUK010880759 ); 1 male ( NHMUK), MALAYSIA, Sarawak, Niah 3°49′ N, 113°46′ E, Malaise trap in primary forest, P. S. Cranston coll., 9– 17 October 1976, ( NHMUK010880760 ); 1 female ( NHMUK), MALAYSIA, Cameron Highlands, Tana Rata, Malaise trap, O. P. Khoo coll., 2001 - 2002 ( NHMUK010880761 ).

Diagnosis. Head and mesosoma (except reddish propleuron andanterior pronotum) black, metasoma reddish with brown markings; area superomedia with posterior carina straight; ovipositor sheath about 2.0 times as long as hind tibia.

Redescription of female. Head. Antenna with 33–34 flagellomeres, first flagellomere 3.8–4.0× longer than apical width, 1.3× length of second; bare deep groove between antennal sockets; face 0.5× as highas wide; clypeus separated from face by impression, about 0.5× as high as wide; malar space short, about 0.2× mandibular basal width; interocellar distance about 0.3× ocellar-ocular distance.

Mesosoma. Epomia moderately strong, angled medially, as long as mandibular basal width; scutellum dorsally polished with moderately dense punctures; mesopleuron with sternaulus strong, extending to posterior margin; propodeum with posterior transversecarina of area superomedia straight, posterior width about 1.5× as long as anterior width, spiracle round, placed in center of area spiracularis; fore basitarsus slightly shorter than tarsomeres 2–5 combined; mid basitarsus about 1.1× tarsomeres 2–5 combined; hind basitarsus 1.1× tarsomeres 2-5 combined. Fore wing length 6.7–8.5 mm, vein M&Rs opposite 1 cu-a, vein 2 rs-m equal to 3 rs-m, vein 1 m-cu&M slightly angled medially, without ramulus, hind wing with first abscissa of vein CU about 1.7–1.8× vein cu-a; distal ends of RS and M obsolete, present as traces.

Metasoma. First tergite smooth and polished, about 6.0– 6.5× as long as posterior width, laterally with long setae, spiracle at anterior 0.4; second tergite equal in length to first tergite, 5.6–6.4× as long as anterior width, 3.0–3.2× as long as posterior width, anterolaterally without short oblique impression but with a callus between anterior edge and spiracle; second tergite polished with sparse punctures, metasoma with tergite 3 onward densely minutely punctate, with short setae; ovipositor sheath 2.0–2.1× as long as hind tibia.

Colour. Head and mesosoma black, mandible except teeth, anterior margin of pronotum and entire propleuron reddish yellow. Fore leg yellow. Mid and hind legs and metasomal tergites reddish, hind tarsomere 5 and gaster with tergite 3 onwards with brown markings. Antenna reddish, distally black. Wings hyaline with apex of fore wing light brown.

Male. Similar to female except long stiff setae present on all metasomal tergites.

Distribution. Previously known only from Sarawak ( Malaysia) ( Yu et al., 2012). These are the first records of this species from Vietnam and Indonesia.

Figures

Fig. 1. Chrysocryptus aureopilosus, female from Trang An Landscape Complex, Ninh Binh Province, Vietnam. a, dorsal view; b, face; c, lateral view of head and mesosoma; d, dorsal view of scutellum and propodeum; e, lateral view of metasoma and ovipositor; f, dorsal view of metasomal tergites 2–3 (each scale bar = 1.0 mm).