Ichneumonosoma consors (Walker, 1861)

Chen, Xiao-Lin, Norrbom, Allen, Freidberg, Amnon, Chesters, Douglas, Islam, Md Sajedul & Zhu, Chao-Dong, 2015, A systematic study of Ichneumonosoma de Meijere, Pelmatops Enderlein Pseudopelmatops Shiraki and Soita Walker (Diptera: Tephritidae), Zootaxa 4013 (3), pp. 301-347 : 307-308

Ichneumonosoma consors (Walker, 1861)

( Figs. 1–7 )

Adrama consors Walker 1861: 296 . Type locality: Indonesia. Maluku: Batchian [Bacan I.]. (LT ♀ BMNH). Ichneumonosoma consors: Hardy, 1986: 72 ; Permkam & Hancock, 1995: 1139.

Diagnosis. Head with 1 frontal seta and with large polished oval black spot over ocellar tubercle and dorsomedian portion of occiput and vertex. Scutum with pair of oblong presutural black spots, without postsutural markings. Pleuron without black markings. Wing hyaline, with narrow fuscous costal band extending slightly beyond apex of vein R4+5. No females were available for study, but according to Hardy (1986) and Permkan & Hancock (1995), the female oviscape is rufous, conical, and as long as abdominal terga 3–6 combined; aculeus laterally compressed at tip, with median dorsal ridge bearing minute saw-like teeth, without distinct preapical setae.

Description. A large predominantly yellow to fulvous species ( Figs. 4–5 ). Wing length 9.2 mm (the sex of the examined specimen is unknown because part of its abdomen is missing)

Head ( Figs. 1–2 ). Completely yellow to fulvous except for an opaque black-brown mark on anterior median portion of frons and a large polished oval-shaped black spot over ocellar tubercle and dorsomedian portion of occiput and vertex. Head slightly broader than thorax in dorsal view and about as high as wide in lateral view. Frons about 2 times as long as wide and about as wide as eye in dorsal view. Antenna inserted at about middle of head in lateral view, slightly shorter than face; 1st flagellomere about 3 times as long as pedicel, 3 times as long as wide, apex rounded; arista short plumose. Occiput convex, distinctly swollen ventrally. Cephalic setae black: 1 frontal, 1 orbital, 1 medial vertical and 1 lateral vertical seta. Postocellar and genal setae absent. Orbital plate non-setulose.

Thorax ( Fig. 3 ). Completely yellow to fulvous except scutum with pair of oblong black presutural spots. Scutum slender, about twice as long as wide, with transverse suture complete and deep. Thoracic chaetotaxy: 2 (pairs) scapular, 1 dorsocentral, 1 scutellar, 2 notopleural, 1 postsutural supra-alar, 1 postalar, 1 intra-alar setae present; prescutellar acrostichal seta absent. Scutellar seta situated slightly closer to base than to apex. Wing ( Figs. 6–7 ) hyaline, with narrow fuscous costal band extending from pterostigma to slightly beyond apex of vein R4+5; cells bc and c colorless; veins R1 and R4+5 setulose dorsally, the latter to about level of crossvein DM-Cu; crossvein R-M situated at distal 1/3 of cell dm; cell bcu with posterodistal lobe short and broad, forming apical angle of approximately 45º. Legs completely yellow to fuscous; mid tibia with 1 large and 1 small black apicoventral spur.

Abdomen. Tergites 1–2 and anterior half of tergite 3 completely yellow-brown.

Distribution. Indonesia ( Maluku), Papua New Guinea, Australia (Torres Strait Is.).

Specimens examined: PAPUA NEW GUINEA: New Guinea (SE): Mt. Lawes, Port Moresby, 1300 ft, 5 March–12 June 1963, W.W. Brandt, 1 individual (sex unknown because abdomen missing beyond middle of tergite 3) (AMS).

Host. Unknown.

Figures

FIGURES 1 – 7. Ichneumonosoma consors. 1. Head, lateral view; 2. Head, dorsal view; 3. Scutum, dorsal view; 4. Habitus, lateral view; 5. Habitus, dorsal view; 6. Wing; 7. Wing, showing cell bcu lobe.