Dissomphalus filus, Azevedo, 2003

Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 36-37

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.5020158

persistent identifier

https://treatment.plazi.org/id/03CF0539-AA69-FFB1-FEF4-FC85FB8DFC86

treatment provided by

Felipe

scientific name

Dissomphalus filus
status

sp. nov.

Dissomphalus filus sp. nov. ( Figs. 47–49 View FIGURES 41–49 ; 57–59 View FIGURES 50–59 )

Description. — Male. Body length 3.75 mm; LFW 2.5 mm. Color: head and mesosoma black; metasoma and clypeus dark castaneous; mandible, antenna and legs castaneous; palpi light castaneous; wings subhyaline.

Head: mandible bidentate, the median tooth small. Clypeus tridentate. First four antennal segments in a ratio of 16:7:5:6, segment XI 2.0 X as long as broad. Frons coriaceous, punctures large, shallow, separated by 0.2–1.5 X their diameters. LH 1.0 X WH; WF 0.59 X WH; 1.16 X HE; OOL 1.07 X WOT; DAO 0.33 X WOT; posterior ocelli distant from the vertex crest 2.0 X DAO, frontal angle of ocellar triangle right. Vertex straight, corners rounded. VOL 0.42 X HE.

Mesosoma: thorax coriaceous and punctated as frons. Pronotal disc 0.61 X length of mesoscutum. Propodeal disc 0.61 X as long as wide. Fore femur 2.9 X as long as thick.

Metasoma: tergite II with pair of very inconspicuous and shallow lateral depressions, with some lateral hairs, each one with tubercle flat­topped, with pit on the top, with tuft of hairs, tubercles slightly closer to the lateral margin than the median line of tergite II. Hypopygium with median stalk 1.9 X as long as plate, posterior margin concave. Genitalia ( Figs. 47–48 View FIGURES 41–49 ): paramere badly longer than basiparamere, apex inclined and irregular, dorsal and ventral margin nearly straight; volsella with digitus with large basal projection; aedeagus with ventral ramus as long as dorsal body, laminar, surface vertical, with median concavity, apex rounded in lateral view, curved upward; dorsal body with two pairs of apical lobes ( Fig. 49 View FIGURES 41–49 ), outer pair slightly downward apically, dorsal margin angulate posteriorly, with thin basal wire, apical margin with two teeth directed downward ( Fig. 59 View FIGURES 50–59 ), inner surface stout, membranous and hairy, inner pairs as long as outer pair, stout, membranous and hairy, with rounded apex; apodeme badly extending beyond the elliptical genital ring.

Material examined. — Holotype: 1 male, BRAZIL, Amazonas , Manaus, Reserve 1208, 17.XII.1986, Malaise trap, B. Klein col. ( INPA) . PARATYPES: PERU, Cuzco, 1 male, Quincemil , 700m, 1–15.XI.1962, L. Peña col. ( CNCI) ; BRAZIL, Amapá, 1 male, Serra do Návio , 2.II.1990, N. Degallier col. ( MEPG) ; Amazonas , 33 males, Manaus, Reserve Ducke , 1208, 1113, 1210, 1112, 1301, 21.II.1985 – 17.VII.1992, Malaise trap, Vidal, Vidal & B. Klein col. ( INPA) ; 1 male, P. das Laranjeiras, 14.VIII.981, J. Arias, light trap ( INPA) ; Pará, 1 male, Oriximiná, Alcoa Mineração, Rio Trombetas , 7–25.X.1982, Malaise trap, Rafael, Binda & Vidal col. ( INPA) ; Rondônia, 1 male, Ariquemes, Rio Jiparaná , 28.X.1986, Malaise trap, J. A. Rafael col. ( INPA) .

Variation. — Clypeus lighter, mesosoma dark castaneous, frons strongly coriaceous, clypeus trapezoidal, metasomal tergite II with depressions deeper and tufts shorter, ventral of aedeagus more dilated medially.

Etymology. — The specific epithet refers to the basal wire of outer lobe of aedeagus.

Distribution. — Peru, Brazil (Amapá, Amazonas, Pará, Rondônia).

INPA

Instituto Nacional de Pesquisas da Amazonia

CNCI

Canadian National Collection Insects

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Bethylidae

Genus

Dissomphalus

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