Dinotrema interjactum, Papp, 2005
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publication ID |
https://doi.org/ 10.5281/zenodo.12586306 |
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persistent identifier |
https://treatment.plazi.org/id/039F6D44-FFA8-FFD3-9735-696E76CABEDD |
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treatment provided by |
Felipe |
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scientific name |
Dinotrema interjactum |
| status |
sp. nov. |
Dinotrema interjactum View in CoL sp. n. f
( Figs 1–7 View Figs 1–12 )
Material examined (1 f) – Female holotype: Mongolia, Central aimak, 12 km SO von Ulaan – Baator, Nucht in Bogdo ul, 1500 m, 5 Juli 1964, leg. Z. KASZAB (loc. no. 273) . Holotype is deposited in the Hungarian Natural History Museum ( Department of Zoology ), Budapest, Hym. Typ. No. 10719 . Holotype is in good condition, glued on a card ventrally. Etymology. – The species name “interjactum ” indicates that it is intermediate between the closely related species.
Remark. – In my earlier paper ( PAPP 1967: 209) this new species was reported under the name Aspilota fuscicornis (HALIDAY) .
Description of the female holotype. – Body 2.2 mm long. Antenna one-fourth shorter than body and with 18 antennomeres. First flagellomere twice and penultimate flagellomere 1.4 times as long as broad, flagellomeres clearly separated. – Head in dorsal view ( Fig. 1 View Figs 1–12 ) transverse, 1.75 times as broad as long, eye and temple of equal length, temple swollen, i.e. head between temples broader than betwen eyes. Ocelli small, elliptic, OOL nearly three times as long as POL. Head 1.5 times as broad as mesoscutum between tegulae. Eye in lateral view 1.5 times as high as wide, eye and temple of equal width ( Fig. 2 View Figs 1–12 , see arrows), outline of head in lateral view as in Fig. 2 View Figs 1–12 . Mandible ( Fig. 3 View Figs 1–12 ) distinctly broadening distally, 1.3 times as long as broad between upper and lower teeth, tooth 1 large, tooth 2 spiky and less large, tooth 3 rounded; outer surface of mandible smooth. Tentorial pit clearly not reaching eye, about as long as its distance from eye. Head polished. Face and clypeus hairpunctured.
Mesosoma in lateral view stout, just longer than high. Midpit distinct, short and linear. Precoxal suture short, restricted to middle of mesopleuron and with three crenulae. Hind margin of mesopleuron smooth. Propodeum with an unusually formed and rather weakly carinated areola basalis, otherwise rugulose-uneven ( Fig. 4 View Figs 1–12 ). – Hind femur 3.8 times as long as broad distally ( Fig. 5 View Figs 1–12 ). Hind tibia and tarsus equal in length.
Fore wing as long as body. Second submarginal cell of usual length, 3–SR 2.3 times as long as 2–SR, SR1 just bent and 2.5 times as long as 3–SR. Subdiscal cell broadening distally, issuing CU1a from middle of 3–CU(1) + CU1b ( Fig. 6 View Figs 1–12 ).
(FISCHER): 10 = mandible, 11 = head in dorsal view, 12 = propodeum
Metasoma one-sixth longer than head and mesosoma combined. First tergite ( Fig. 7 View Figs 1–12 ) moderately broadening posteriorly, 1.7 times as long as broad behind, just less than twice as broad behind as basally; pair of spiracles before middle of tergite, pair of keels converging, continuing parallel and merging posteriorly into uneven surface. Further tergites polished.
Ground colour of body blackish brown. Mandible brownish yellow, palpi yellowish. Scape and pedicel brownish, flagellum brown to dark brown. Tegula brown, parategula brownish yellow. Tergites brown with dark brown pattern. Legs brownish yellow, telotarsus brownish. Wings hyaline, veins light brown.
Male and host unknown.
Distribution: Mongolia.
The new species, Dinotrema interjactum , runs to the species D. amoenidens (FISCHER) and D. sternaulicum (FISCHER) with the help of FISCHER’ s key (1976: 345–357) and is a member of the signifrons -group. – Related to D. amoenidens by their common features as large upper tooth of mandible, long 3–SR and first tergite weakly striated or uneven; the two species are differentiated as follows:
1 (2) Pair of toruli in dorsal view less protruding, hence head virtually more transverse, temple not swollen ( Fig. 8 View Figs 1–12 ). Propodeum with a weak medio-longitu-
dinal keel and along it widely rugose, lateral margin with crenulae, anteriorly with a transverse keel ( Fig. 9 View Figs 1–12 ). Ground colour of body black. f: 1.8–2 mm. –
Austria, Switzerland, Hungary
2 (1) Pair of toruli in dorsal view protruding, hence head virtually less transverse, temple swollen ( Fig. 1 View Figs 1–12 ). Propodeum with an unusually formed areola basalis and rugulose-uneven ( Fig. 4 View Figs 1–12 ). Ground colour of body blackish brown. f: 2.2 mm. – Mongolia D. interjactum sp. n.
The new species is also related to D. sternaulicum (FISCHER) considering their common features as temple in dorsal view more or less swollen, long 3–SR and first tergite 1.7–1.8 times as long as broad behind; the two species are distinguished by the following features:
1 (2) Upper tooth of mandible less protruding upwards ( Fig. 10 View Figs 1–12 ). Antenna with 23–26 antennomeres. Temple in dorsal view just swollen, toruli slightly less protruding ( Fig. 11 View Figs 1–12 ). Areola basalis of propodeum distinct, otherwise propodeum rugose ( Fig. 12 View Figs 1–12 ). Scape and pedicel yellow. f: 2.5–2.6 mm. – Austria D. sternaulicum (FISCHER, 1973) View in CoL
2 (1) Upper tooth of mandible protruding upwards ( Fig. 3 View Figs 1–12 ). Antenna with 18 antennomeres. Temple in dorsal view swollen, toruli slightly more protruding
( Fig. 1 View Figs 1–12 ). Areola basalis of propodeum unusual in form ( Fig. 4 View Figs 1–12 ). Scape and pedicel brownish. f: 2.2 mm. – Mongolia D. interjactum View in CoL sp. n.
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