Imeria (Imeria) albitemplata, Riedel & C, 2025

Riedel, Matthias & C, Imeria, 2025, The genus Imeria CAMERON in the Oriental region (Hymenoptera, Ichneumonidae, Ichneumoninae), Linzer biologische Beiträge 56 (2), pp. 633-668 : 637-639

publication ID

https://doi.org/10.5281/zenodo.16956980

persistent identifier

https://treatment.plazi.org/id/03BA3B47-FFED-3946-FF2B-D5C80C297A3B

treatment provided by

Felipe

scientific name

Imeria (Imeria) albitemplata
status

sp. nov.

Imeria (Imeria) albitemplata nov.sp. ( figs 5 View Figs 5-10 , 17 View Figs 17-22 , 46 View Figs 43-47 )

H o l o t y p e (♀): Cambodia: (Siem Reap), Angkor Thom, Netcatching, IG 30.192, 1-15.viii.2003, leg. Daniel R. Jump, Coll. I.R.Sc.N.B. ( HK).

E t y m o l o g y: The species name refers to the separate ivory spot of the vertex.

D e s c r i p t i o n: ♀. Body length 10.5 mm. Flagellum with>11 segments (tip broken off); 1 st flagellar segment 3.9× as long as wide. Temple long, parallel behind eye and slightly narrowed apically. OED 1.6× and OOD 0.9× ocellar diameter. Temple, frons and gena smooth. Face with fine sparse superficial punctures. Clypeus large, flat, with fine very sparse punctures; apical margin slightly lamelliform raised laterally and with small tooth medially. Malar space 0.8× as long as width of mandibular base.

Epomia long, not reaching ventral margin of pronotum. Mesoscutum densely rugose-punctate, dull. Notaulus not impressed. Epicnemial carina not widened ventrally. Sternaulus slightly impressed at frontal margin of mesopleuron. Mesopleuron coarsely striate dorsally, rugose-punctate ventrally; speculum smooth. Metapleuron striate ventrally, rugose-punctate dorsally; juxtacoxal carina largely absent, only indicated at frontal margin of metapleuron. Scutellum moderately and roundly elevated, wider than long, with complete and slightly lamelliform lateral carina. Postscutellum rugose. Propodeum incompletely carinate, without apophysis; spiracle oval. Area basalis indicated by median longitudinal ridge. Area superomedia pentagonal, c. 2× as wide as long; costula reaching at 6/10 of its length. Lateral carina of area petiolaris and lateral longitudinal carina of propodeum absent. Hind coxa densely punctate, without scopa or carina. Hind femur 4.6× as long as wide. Claws simple, apically strongly curved (by 90°). Areolet pentagonal; frontal distance between veins 2rs-m and 3rs-m 1× their width. Vein 1cu-a slightly postfurcal by 1× its width.

Metasoma rather slender, with almost parallel sides, oxypygous, 2 nd to 5 th sternites with median folds. Postpetiole moderately widened, finely granulate but shining. Gastrocoelus moderately impressed. Thyridium large, transverse, c. 2× as wide as interval between thyridia. 2 nd tergite 1.1× as wide as long. 2 nd and 3 rd tergites with dense but superficial punctures, shining; following tergites finely granulate. Ovipositor sheath extending beyond metasomal apex by length of 3 rd hind tarsomere.

Color: Black. Antenna black, dorsal stripes of central flagellomeres from 6 th flagellomere on ivory. Palps, mandible except teeth, clypeus, face except large triangular median spot, gena, frontal orbit up to ocelli, large posterolateral spot of vertex (widely separated from compound eye), frontal margin, ventral edge and upper margin of pronotum, dumb-bell shaped central spot on mesoscutum, tegula, subtegular ridge, scutellum, postscutellum, wide stripe on ventral mesopleuron, transversal band covering apical metapleuron, area petiolaris and area posteroexterna, narrow base of petiole, wide basal bands and narrow apical margins of 2 nd and 3 rd tergites, and apical bands of 4 th to 7 th tergites (± narrowed medially) ivory. Fore and mid coxae and trochanters ivory; hind coxa and trochanter black, with apical ivory bands. Legs otherwise reddish; fore tarsus distally and mid and hind tarsi entirely black; hind femur narrowly infuscate at apex; hind tibia red, black basally. Wings hyaline; pterostigma black.

³ unknown.

R e m a r k: This species is characterized by its ivory spot on vertex, which is widely separated from compound eye, ivory spot on mesoscutum and black hind tarsus.

D i s t r i b u t i o n: Only known from Cambodia.

Imeria (Imeria) albomaculata albomaculata CAMERON, 1903 View in CoL ( figs 7 View Figs 5-10 , 19 View Figs 17-22 , 29, 33, 43)

S t u d i e d m a t e r i a l: India: Ghumti , Darjeeling distr., E. Himalayas, c. 4000 ft., 1♀ vii.1911, F.H. Gravely ( NHM) ; S India: Coimbatore District , Siruvani, 1♀ 9.v.1937, P. S. Nathan, NHMUK 015214883 About NHMUK ( NHM) .

D e s c r i p t i o n: ♀. Body length 7.5-8.5 mm. Flagellum with>27 segments (tip broken off), slightly lanceolate; 1 st flagellar segment 4.0× as long as wide, widest segments 1.2× as wide as long. Temple long, slightly and almost linearly narrowed behind eye. OED 2.1× and OOD 0.8× ocellar diameter. Temple, frons and gena smooth. Face with dense superficial punctures medially, almost smooth laterally. Clypeus large,

flat, with fine very sparse punctures; apical margin slightly lamelliform raised laterally and with small tooth medially. Malar space 0.8× as long as width of mandibular base.

Epomia long, not reaching ventral margin of pronotum. Side of pronotum smooth medially, with some longitudinal striae posteriorly. Mesoscutum densely rugose-punctate, dull. Notaulus not impressed. Epicnemial carina slightly widened behind fore coxa. Sternaulus slightly impressed at frontal margin of mesopleuron. Mesopleuron including speculum with coarse vermiform rugae. Metapleuron rugose-punctate; juxtacoxal carina absent. Scutellum moderately and roundly elevated, wider than long, with complete lamelliform lateral carina. Postscutellum rugose. Propodeum incompletely carinate and without apophysis; spiracle oval. Area basalis replaced by median longitudinal ridge. Area superomedia pentagonal, about as long as wide; costula reaching at 4/10 of its length. Lateral carina of area petiolaris and lateral longitudinal carina of propodeum absent. Hind coxa densely punctate, without scopa or carina. Hind femur slender, 4.8-5.0× as long as wide. Claws simple, apically strongly curved (by 90°). Areolet pentagonal; frontal distance between veins 2rs-m and 3rs-m 2× their width. Vein 1cu-a slightly postfurcal by 3× its width. Hind wing with 8 distal hamuli.

Metasoma oxypygous, 2 nd to 5 th sternites with median folds. Postpetiole moderately widened, finely granulate but shining. Gastrocoelus moderately impressed. Thyridium large, transverse, 2× as wide as interval between thyridia. 2 nd tergite about as long as wide. 2 nd and 3 rd tergites with fine dense but superficial punctures, shining; following tergites finely granulate. Ovipositor sheath extending beyond metasomal apex by length of 3 rd hind tarsomere.

Color: Black. Antenna black, flagellar segments 7-15 dorsally ivory. Palps, mandible except teeth, clypeus ±, stripes of facial orbit (sometimes ± reduced) and frontal orbit, sometimes spot on gena, frontal and ventral margins of pronotum, tegula, subtegular ridge, small postero-ventral spot on mesopleuron, scutellum, postscutellum, transversal band covering apical metapleuron, apical half of area superomedia, entire area petiolaris and area posteroexterna, base of petiole, wide basal bands of 2 nd and 3 rd tergites, narrow apical margin of 5 th tergite, 6 th and 7 th tergites mainly or entirely, 2 nd and 3 rd sternites, and apical bands of 4 th to 6 th sternites ivory. Fore and mid coxae and trochanters ivory; hind coxa black, with dorsal ivory spot. Legs otherwise reddish; distal tarsomeres of fore and mid legs brown; hind femur narrowly infuscate at apex; hind tibia narrowly infuscate basally, black in apical 0.25; hind tarsus black. Wings hyaline; pterostigma brown.

³ unknown.

D i s t r i b u t i o n: This subspecies is only known from India.

NHM

University of Nottingham

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Ichneumonidae

Genus

Imeria

Loc

Imeria (Imeria) albitemplata

Riedel, Matthias & C, Imeria 2025
2025
Loc

Imeria (Imeria) albomaculata albomaculata CAMERON , 1903

albomaculata CAMERON (Darjeeling 1903
1903
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