Pristomerus tutsi, Rousse & Noort, 2015

Rousse, Pascal & Noort, Simon van, 2015, Revision of the Afrotropical species of Pristomerus (Ichneumonidae: Cremastinae), with descriptions of 31 new species, European Journal of Taxonomy 124, pp. 1-129 : 101-103

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scientific name

Pristomerus tutsi

sp. nov.

Pristomerus tutsi sp. nov.

Fig. 38 View Fig


Moderately large; mostly black with lighter yellow to yellowish-orange markings on head and tergites 3–6; femora and trochanters apically white dotted; pterostigma anteriorly paler; face moderately punctate; inner margins of eyes subparallel; malar line moderately long; clypeus strongly transverse, sparsely and shallowly punctate; remainder of head coriaceous; antenna with 32 flagellomeres, penultimate flagellomere barely elongate; pronotum mostly smooth; mesopleuron and metapleuron moderately densely punctate with speculum largely smooth; mesoscutum roughly and densely punctate; punctation distinctly sparser on scutellum; area superomedia elongate; ovipositor long, apically sinuous. Male with inner margins of eyes diverging ventrally, ocelli and hind femur enlarged, femoral tooth long and narrow, mesoscutum mostly coriaceous with punctures along notaulus, area superomedia more slender, and metasoma darker with tergite 3 only partially yellowish-orange.

Differential diagnosis

Moderately large and mostly black; differentiated from all other Afrotropical species by the combination of the mostly smooth pronotum, the coarsely punctate-granulate mesoscutum, the short post-ocellar line, the absence of a femoral tooth in females and the long ovipositor.

Type material


UGANDA: ♀, “ UGANDA, Kibale National Park, Kanyawara, Makerere University Biological Field Station , 1465 m, 0°35.442’N 30°21.741’E, 10.viii.2008, S. van Noort, UG08–KF12–S03, Sweep, primary mid-altitude rainforest, near stream, SAM–HYM–P047413” ( SAMC).



UGANDA: 3 ♂♂, same label data; 1 ♀, same label data except: “ 1495m 0°33.871’N 30°21.355’E, 12– 26.viii.2008, UG 08–KF2–M12, Malaise trap, secondary mid-altitude rainforest, SAM–HYM–P047444” ( SAMC); 1 ♀, “Uganda Rwenzori Mts nr. Kyanjuki village, wet forest nr. entrance NP 06.III.2013 A. Gumovsky SAM–HYM–P047414” ( SAMC).


Female (3 specimens)

B 7.0–8.1; A 4.9–5.2; F 4.8–5.4; CT 2.0; ML 0.6; POL 0.4; OOL 1.0; Fl n-1 1.1; ASM 2.2; OT 1.9–2.2; FFT 0.

COLOUR. Head black with clypeus, malar space and frontal orbits yellowish-orange, and mandible and palpi pale yellow; mesosoma black; metasoma mostly black with base of tergite 1 pale yellow and tergites 3 and following apically and laterally yellowish-orange; fore and mid legs yellow to yellowishorange; hind leg mostly infuscate to black with trochantellus yellow to yellowish-orange and tibia medially lighter; all femora and coxae apically white dotted; wing hyaline, venation brown with anterior edge of pterostigma whitish.

HEAD. Face moderately punctate, punctation denser on median bulge; inner margins of eyes subparallel; clypeus strongly transverse, sparsely and shallowly punctate with punctation denser along dorsal margin; malar line moderately long; frons, vertex and temple coriaceous; occipital carina joining hypostomal carina shortly above mandible base; ocelli somewhat enlarged, posterior ones close to each other; antenna with 32 flagellomeres, penultimate flagellomere barely elongate.

MESOSOMA. Elongate; pronotum mostly smooth with some punctures ventrally and posteriorly; mesopleuron and metapleuron moderately densely, deeply and evenly punctate with a shallowly sculptured oblique furrow below speculum, speculum mostly smooth with some dorsal punctures; mesoscutum densely and roughly punctate, inter-punctures areas finely rugose; notaulus moderate; scutellum with punctation distinctly sparser, inter-punctures areas smooth; propodeum densely punctate with area superomedia centrally smoother and area petiolaris transversely strigose; area superomedia elongate. Legs. Hind femur with femoral tooth absent.

METASOMA. Metasoma coriaceous with apex of tergite 1, entire tergite 2 and base of tergite 3 longitudinally aciculate; thyridium elliptic and long, its main axis longitudinal; ovipositor long, strongly sinuous apically.

Male (paratypes)

B 7.2–8.0; A 4.5–5.2; F 4.9–5.1; POL 0.4; OOL 0.5. Ocelli and hind femur enlarged; inner margins of eyes distinctly diverging ventrally; femoral tooth long and narrow; antenna with 27 flagellomeres; mesoscutum roughly coriaceous with punctures along notaulus; propodeum with area superomedia more slender; metasoma darker, with tergite 3 only partially yellowish-orange to quite dark; otherwise similar to female.




Iziko Museums of Cape Town


Museo del Departamento de Estratigrafia y Paleontologia