Dinotrema teutoniaense, 2016

Peris-Felipo, Francisco Javier & Belokobylskij, Sergey A., 2016, First record of the genus Dinotrema Foerster, 1862 (Hymenoptera, Braconidae, Alysiinae) from the Neotropical region, with description of four new species and a key to the New World taxa, European Journal of Taxonomy 179, pp. 1-23 : 18-20

Key for the Nearctic and Neotropical species of Dinotrema

(According to the key system by Peris-Felipo et al. 2014b).

1. Propodeum entirely or mainly smooth, often with complete or short median carinae, sometimes additionally with short subtransverse carinae emerging from median carina, but far separated from propodeal edges ............................................................................................................................... 2

– Propodeum widely or entirely sculptured, often with numerous subtransverse carinae reaching propodeal edges; sometimes additionally with complete longitudinal median carina or large and distinctly delineated areola .............................................................................................................. 4

2. Propodeum completely smooth, without any median carina ............................................................ I – Propodeum with short or complete median carinae ........................................................................ 3

3. Propodeum with short median carinae, which is sometimes branched posteriorly into two carinae ............................................................................................................................................. II – Propodeum with a complete median longitudinal carinae following from its base to apex........... III

4. Propodeum with large pentagonal areola ....................................................................................... IV – Propodeum without areola ............................................................................................................... 5

5. Propodeum without complete median longitudinal carina or only with short basal carina ............. V – Propodeum with complete and distinct median longitudinal carina following from its base to apex ................................................................................................................................................ VI

I. PROPODEUM COMPLETELY SMOOTH

1. Mesoscutal pit absent. Eye in lateral view 4.8 times as wide as temple medially. Mandible 1.3 times as long as wide. Apical flagellar segment of antenna whitish. Hind femur 4.5 times as long as its maximum width. First metasomal tergite 0.8 times as long as its apical width. Prescutellar depression without lateral carinae. Body length 1.6 mm. U.S. A...... D. armillariae ( Fischer, 1969b)

II. PROPODEUM WITH SHORT MEDIAN CARINAE, SOMETIMES BRANCHED POSTERIORLY INTO TWO CARINAE

Until now, no species belonging to group II have been recorded from Neartic and Neotropical regions.

III. PROPODEUM MAINLY OR WIDELY SMOOTH AND WITH COMPLETE MEDIAN LONGITUDINAL CARINA

1. First flagellar segment 5.5 times as long as its maximum width ( Fig. 8D ). Apical flagellar segments paler than middle segments ( Fig. 8A, D ). Mandible twice as long as its maximum width ( Fig. 8C ). Mesoscutal pit round and small ( Fig. 9A ). Paraclypeal fovea long, distinctly surpassing middle distance between clypeus and eye ( Fig. 8C ). Hind femur 5.0 times as long as its maximum width ( Fig. 9D ). First metasomal tergite 2.8 times as long as its apical width ( Fig. 9C ). Body length 1.3– 1.4 mm. Brazil........................................................................ D. teutoniaense Peris-Felipo sp. nov.

– First flagellar segment 2.2–3.8 times as long as its maximum width. Apical flagellar segments same colour as middle segments. Mandible 1.2–1.7 times as long as its maximum width. Mesoscutal pit oval or elongate, rather long. Paraclypeal fovea short or medium length, never distinctly continued behind middle distance between clypeus and eye. Hind femur 3.8–4.3 times as long as its maximum width. First metasomal tergite 1.8–2.2 times as long as its apical width ......................................... 2

2. First flagellar segment 2.2 times as long as its maximum width. Mandible 1.7 times as long as its maximum width. First metasomal tergite 1.8 times as long as its apical width. Prescutellar depression with lateral carinae. Body length 1.6 mm. U.S.A................................... D. disstriae (Fischer, 1969)

– First flagellar segment 3.2–3.8 times as long as its maximum width. Mandible 1.2–1.4 times as long as its maximum width. First metasomal tergite 2.0–2.2 times as long as its apical width. Prescutellar depression without lateral carinae ................................................................................................... 3

3. Mesosoma in lateral view as long as high. First flagellar segment 3.2 times as long as its maximum width. Paraclypeal fovea short, not reaching middle distance between clypeus and eye. Face 2.2 times as wide as high. Clypeus 3.3 times as wide as high. Body length 1.75 mm. U.S.A.................................................................................................. D. pauperum (Fischer, 1969)

– Mesosoma in lateral view 1.2–1.3 times as long as high. First flagellar segment 3.5–3.8 times as long as its maximum width. Paraclypeal fovea medium length, reaching middle distance between clypeus and eye. Face 1.8–2.0 times as wide as high. Clypeus 3.0 times as wide as high ........................... 4

4. Eye in lateral view 1.1 times as wide as temple medially. First flagellar segment 3.5 times as long as its maximum width. First metasomal tergite 2.2 times as long as its apical width. Clypeus 2.5 times as wide as high. Body length 2.0 mm. U.S.A....................................... D. clayensis (Fischer, 1969)

– Eye in lateral view 1.4 times as wide as temple medially. First flagellar segment 3.8 times as long as its maximum width. First metasomal tergite twice as long as its apical width. Clypeus 3.0 times as wide as high ..................................................................................................................................... 5

5. Propodeum with short transverse carinae never reaching half surface of propodeum ( Fig. 10A ). Precoxal suture smooth. Hind femur 4.3 times as long as its maximum width. Body length 1.8 mm. Canada, U.S.A................................................................................ D. angusticorne (Fischer, 1969)

– Propodeum with long transverse carinae continued behind half surface of propodeum but not reaching lateral side ( Fig. 10B ). Precoxal suture crenulate. Hind femur 4.1 times as long as its maximum width. Body length 1.8 mm. Canada, U.S.A................. D. bucculatricis (Fischer, 1969)

IV. PROPODEUM WIDELY OR ENTIRELY SCULPTURED AND WITH DISTINCTLY DELINEATED LARGE AREOLA

1. Only two teeth of mandible visible in lateral view ( Fig. 6A ). Mandible 1.7 times as long as its maximum width ( Fig. 6A ). Apical flagellar segments same colour as middle segments ( Fig. 2C ). First flagellar segment 2.5–3.0 times as long as its maximum width ( Fig. 6C ). Eye in lateral view 1.3 times as wide as temple medially ( Fig. 6E ). First metasomal tergite 1.4 times as long as its apical width ( Fig. 7A ). Body length 1.6–2.0 mm. Brazil.............. D. subbidentatum Peris-Felipo sp. nov.

– Three teeth of mandible visible in lateral view ( Fig. 3C ). Mandible 1.3 times as long as its maximum width ( Fig. 3C ). Apical flagellar segments paler than middle segments ( Fig. 3D ). First flagellar segment 3.5 times as long as its maximum width ( Fig. 3D ). Eye in lateral view 1.8 times as wide as temple medially ( Fig. 3F ). First metasomal tergite 3.0 times as long as its apical width ( Fig. 4B ). Body length 2.0– 2.2 mm. Brazil................................................ D. plaumanni Peris-Felipo sp. nov.

Figures

Fig. 8. Dinotrema teutoniaense Peris-Felipo sp. nov. (♀). A. Habitus, lateral view. B. Head, lateral view. C. Face and mandible, frontal view. D. Antenna. E. Head, dorsal view. F. Mesosoma, lateral view.

Fig. 9. Dinotrema teutoniaense Peris-Felipo sp. nov. (♀). A. Mesonotum, dorsal view. B. Propodeum, dorsal view. C. First metasomal tergite. D. Metasoma, hind leg and ovipositor, lateral view. E. Fore and hind wings.

Fig. 10. Sculpture of propodeum.A. Dinotrema angusticorne (Fischer, 1969). B. Dinotrema bucculatricis (Fischer, 1969).

Fig. 6. Dinotrema subbidentatum Peris-Felipo sp. nov. (♀). A. Head and mandible, lateral view. B. Face, frontal view. C. Antenna. D. Head and mesonotum, dorsal view. E. Head and mesosoma, lateral view. F. Propodeum, dorsal view.

Fig. 2. Dinotrema multiareolatum Peris-Felipo sp. nov. (♀). A. Head, dorsal view. B. Mesosoma, lateral view. C. Head, sublateral view and mesonotum, dorsal view. D. Propodeum, dorsal view. E. First metasomal tergite. F. Fore and hind wings.

Fig. 7. Dinotrema subbidentatum Peris-Felipo sp. nov. (♀). A. First metasomal tergite. B. Metasoma, hind leg and ovipositor, lateral view. C. Fore and hind wings.

Fig. 3. Dinotrema plaumanni Peris-Felipo sp. nov. (A, C–F ♀; B ³). A–B. Habitus, lateral view. C. Face, mandible and mesosoma in lateral view. D. Antenna. E. Head, dorsal view. F. Head, lateral view and mesonotum, dorsal view.

Fig. 4. Dinotrema plaumanni Peris-Felipo sp. nov. (♀). A. Propodeum, dorsal view. B. First metasomal tergite. C. Metasoma, hind leg and ovipositor, lateral view. D. Fore and hind wings.