Dissomphalus gordus, Azevedo, 2003

Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 46-47

publication ID

https://doi.org/ 10.11646/zootaxa.338.1.1

publication LSID

lsid:zoobank.org:pub:7146D5AC-DE68-4CB7-B004-3B85A46C69B4

DOI

https://doi.org/10.5281/zenodo.5101998

persistent identifier

https://treatment.plazi.org/id/03CF0539-AA67-FFBB-FEF4-F9CAFC36FA2E

treatment provided by

Felipe

scientific name

Dissomphalus gordus
status

sp. nov.

Dissomphalus gordus sp. nov. ( Figs. 82–87 View FIGURES 72–87 )

Description. — Male. Body length 4.5 mm; LFW 3.12 mm. Color: head and mesosoma black; metasoma, clypeus, mandible and antennae dark castaneous, scape lighter; legs castaneous; palpi light castaneous; wings subhyaline.

Head: mandible bidentate ( Fig. 82 View FIGURES 72–87 ). Clypeus trapezoidal ( Fig. 83 View FIGURES 72–87 ). First four antennal segments in a ratio of 13:5:5:6, segment XI 1.43 X as long as broad, sensillae conspicuous. Frons strongly coriaceous, punctures inconspicuous, shallow, separated by 0.3–1.5 X their diameters. LH 0.98 X WH; WF 0.61 X WH; 1.38 X HE; OOL 1.14 X WOT; DAO 0.36 X WOT; posterior ocelli distant from the vertex crest 1.2 X DAO, frontal angle of ocellar triangle acute. Vertex straight, corners rounded. VOL 0.48 X HE.

Mesosoma: thorax coriaceous as frons. Pronotal disc 0.64 X length of mesoscutum. Propodeal disc 0.67 X as long as wide, with small polished area posteriorly. Fore femur 3.3 X as long as thick.

Metasoma: tergite II with pair of elliptical pits, distant each other 5.0 X their length, distant from posterior margin of tergite I 0.67 X their length, closer to the lateral margin than the middle, placed at the inner area of rounded depression, inner part of each pit covered by translucid sclerite ( Fig. 84 View FIGURES 72–87 ), so that the hole is hemispheric and inclined, from which emerges small tuft of hairs ( Fig. 85 View FIGURES 72–87 ). Hypopygium with median stalk 1.43 X as long as plate, posterior margin straight. Genitalia ( Fig. 86–87 View FIGURES 72–87 ): paramere wider medially, with apex as a triangular expansion, dorsal margin convex, ventral margin straight; aedeagus entirely gibbous, ventral ramus much shorter than dorsal body, laminar, surface inclined, basal half fused, apical half narrowing gradually to the rounded apex in lateral view; dorsal body with two pairs of apical lobes, outer pair laminar apically, surface vertical, apex rounded in lateral view, with rim hairy below, inner pair membranous, stout and hairy; basal process as a stout expansion, large and somewhat membranous, basal bar dilated above; apodeme not extending beyond the elliptical genital ring.

Material examined. — HOLOTYPE: male, BRAZIL, Paraná, Antonina, Reserva Sapitanduva , 29.IX.1987; Malaise trap, Profaupar Survey ( DZUP) . PARATYPES: BRAZIL, Rio de Janeiro, 4 males , Rio de Janeiro, I.1972, M. Alvarenga col. ( PMAE) ; São Paulo, 1 male, São Carlos, Canchim Farm , forest, 7.XI.1985, sweeping, A. Souza col. ( DCBU) ; 2 males, Salesopólis, Boraceia Biological Station , 5.VII–6.IX.1997, Malaise trap, C. I. Yamamoto col. ( MSZP) ; Paraná, 3 males, Antonina, Reserva Sapitanduva , 4.VIII.1986 – 14.IX.1987, 1 male, Colombo, Embrapa, Br 476. Km 20, 3.XI.1986 – 23.II.1987, Malaise trap, Profaupar Survey ( DZUP) .

Variation. — Metasoma darker, depression of tergal processes deeper.

Etymology. — The specific epithet refers to the aedeagus gibbous.

Distribution. — Brazil (Rio de Janeiro, São Paulo, Paraná).

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

DCBU

Universidade Federal de Sao Carlos

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Bethylidae

Genus

Dissomphalus

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