Odontopsilus Kieffer, 1909

Quadros, Alex Leite & Brandão, Carlos Roberto F., 2017, Genera of Belytinae (Hymenoptera: Diapriidae) recorded in the Atlantic Dense Ombrophilous Forest from Paraíba to Santa Catarina, Brazil, Papéis Avulsos de Zoologia (São Paulo) 57 (6), pp. 57-91 : 66-67

Odontopsilus Kieffer, 1909

( Figs. 17 , 20B , 24B )

Total of specimens found: 182 (73 females and 109 males) in one morphospecies.

Diagnosis: Overall size between 2.4 and 3.75 mm; mandibles long (mandible length longer than the distance between the ventrolateral margins of the head, near the bases of the mandibles), sickle-shaped ( Fig. 17A ); antenna 15-segmented and filiform in females ( Fig. 17D ), 14-segmented in males; first male flagellomere not modified ( Fig. 20B ). Mesosoma higher than wide; pronotal shoulders angular ( Fig. 17C ); epomia well developed; presence of teeth, one on each scutellar bridge, near the posterolateral margin of the scutellar fovea, plus a small tooth in the middle posterior part of the scutellar disc ( Fig. 17E ). Forewing with closed radial cell ( Fig. 17F ).

Material examined: BRAZIL: Santa Catarina: São Bento do Sul, CEPA Rugendas , 26°19’25.6”S, 49°18’26.5”W, 14-17.x.2001, A.M. Penteado-Dias e eq. col., 1 ♀ ; São Francisco do Sul, CEPAVila da Glória , 26°13’40.0”S, 48°40’49.1”W, 14-17.x.2001 (3), 17-20.x.2001, A.M. Penteado-Dias e eq. col., 1 ♀ / 3 ♂♂ ; São Paulo: Base Barra Grande, Parque Estadual de Intervales , 24°18’14.4”S, 48°21’50.4”W, 10-13.xii.2000, M. T. Tavares e eq. col., 1 ♀ ; Ubatuba, Parque Estadual Serra do Mar , 23°21’43”S, 44°49’22”W, 21.i.2002 (10), 22.i.2002 (3), 24.i.2002 (9), N.W. Perioto e eq. col., 13 ♀♀ / 9 ♂♂ ; Rio de Janeiro: Nova Iguaçu, Reserva Biológica do Tinguá , 22°34’32”S, 43°26’09”W, 06-09.iii.2002 (5), 05-08.iii.2002 (4), 08-11.iii.2002 (3), 09-12. iii.2002 (2), 08.iii.2002 (1), S. T. P. Amarante e eq. col., 6 ♀♀ / 9 ♂♂ ; Santa Maria Madalena, Parque Estadual do Desengano , 21°59’03.9”S, 41°57’08.4”W, 16-19. iv.2002 (14), 19-22.iv.2002 (20), A.M. Penteado-Dias e eq. col., 17 ♀♀ / 17 ♂♂ ; Espírito Santo: Santa Teresa, Estação Biológica de Santa Lúcia , 19°58’16.7”S, 40°32’06.9”W, 09-12.iv.2001, C.O. Azevedo e eq. col., 1 ♂ ; Bahia: Ilhéus , Mata Esperança , 14°46’S / 39°04’W, 15-18.v.2002 (3), 18-21.v.2002, 19.v.2002, A.M. Penteado-Dias e eq. col., 2 ♀♀ / 3 ♂♂ ; Sergipe: Santa Luzia do Itanhy, Reserva Ecológica do Castro , 11°22’37.9”S, 37°25’01.8”W, 01-04. viii.2001, M. T. Tavares e eq. col., 1 ♀ / 1 ♂ ; Alagoas: Quebrangulo, Reserva Biológica Pedra Talhada , 09°18’57.6”S, 36°27’57.6”W, 08-11.ix.2002 (56), 11-14.ix.2002 (33), 08-14.ix.2002 (1), A.M. Penteado-Dias e eq. col., 25 ♀♀ / 65 ♂♂ ; Pernambuco: Recife, Parque dos Dois Irmãos , 08°03’14”S, 34°52’52”W, 17-20.vii.2002 (6), 20-23.vii.2002, S. T. P. Amarante e eq. col., 6 ♀♀ / 1 ♂. A.L. Quadros det.

Remarks: There is only one described species of Odontopsilus in the world ( Johnson, 1992), O. tenuicornis Kieffer, 1909 , which was recorded also in the Neotropics (Pachitea, Peru) ( Kieffer, 1909). It shares character states with Aclista such as the sickle-shaped mandibles ( Figs. 12A , 17A , 18A ), the angular pronotal shoulders ( Figs. 17C , 18C ), well developed epomia and forewing with closed radial cell ( Figs. 5A , 17F , 18D ), with some Aclista species with teeth, one on each scutellar bridge, near the posterolateral margin of the scutellar fovea ( Figs. 17E , 19 B-C). The Odontopsilus species might represent an Aclista with significant modifications in the scutellum.

Distribution: In our study, it was recorded from Santa Catarina to Pernambuco states ( Fig. 24B ).

Figures

FIGURE 5: Forewing of four different Belytinae spp. (Hymenoptera, Diapriidae) from Biota project (2000-2002): (A) male forewing of Aclista collected in CEPA Rugendas, SC; (B) male forewing of Camptopsilus collected in CEPA Rugendas, SC; (C) male forewing of Lyteba collected in Parque Estadual de Intervales, SP; (D) male forewing of Lyteba collected in Parque Estadual de Intervales, SP.

FIGURE 12: Head in frontal view of three different Belytinae spp. (Hymenoptera, Diapriidae) from Biota project (2000-2002): (A) female of Aclista collected in Parque Estadual de Intervales, SP; (B) female of Belyta collected in Reserva Biológica do Tinguá, RJ; (C) female of Cinetus collected in CEPA Rugendas, SC.

FIGURE 17: Odontopsilus sp. (Hymenoptera, Diapriidae, Belytinae), female colleted in the Reserva Biológica do Tinguá, RJ (Biota project 2000-2002): (A) head, frontal view; (B) habitus, lateral view; (C) mesosoma, dorsal view; (D) antenna; (E) scutellar disc, metascutellum e propodeum, lateral view (arrow indicates the tooth in the middle posterior part of the scutellar disc); (F) forewing.

FIGURE 18: Aclista sp. (Hymenoptera, Diapriidae, Belytinae), female colleted in the Reserva Biológica Pedra Talhada, AL (Biota project 2000-2002): (A) head, frontal view; (B) habitus, lateral view; (C) mesosoma, dorsal view; (D) forewing; (E) mesosoma, lateral view.

FIGURE 19: Mesosoma in lateral view of three Aclista spp. (Hymenoptera, Diapriidae, Belytinae), females collected by the Biota project (2000-2002): (A) from Reserva Biológica Pedra Talhada, AL; (B) from Parque Estadual Serra do Mar, SP (arrow indicates the tooth in the scutellar bridge); (C) from CEPA Vila da Glória (arrow indicates the tooth in the scutellar bridge).

FIGURE 20: Proximal part of Belytinae (eight different morphospecies) male antenna (Hymenoptera, Diapriidae) from the Biota project (2000-2002): (A) Aclista from Parque Estadual de Intervales, SP; (B) Odontopsilus from Reserva Biológica do Tinguá, RJ; (C) Aclista from Reserva Biológica Pedra Talhada, AL; (D) Aclista from Parque Estadual do Desengano, RJ; (E) Aclista from Parque Estadual Serra do Mar, SP; (F) Aclista from Parque Estadual do Desengano, RJ; (G) Aclista from Reserva Biológica Pedra Talhada, AL; (H) Aclista from Reserva Biológica Pedra Talhada, AL.

FIGURE 24: Distribution of Belytinae genera (Hymenoptera, Diapriidae) in the Atlantic Forest:(A) Aclista from Biota project (2000-2002), at a scale of 1:1000; (B) Odontopsilus from Biota Project (2000-2002), at a scale of 1:1000; (C) Miota from collection of the Federal University of Espírito Santo, at a scale of 1:300.