Dissomphalus arbeius Brito & Azevedo,

Azevedo, Celso O., 2017, Review of Dissomphalus Ashmead (Hymenoptera, Bethylidae) from Panama, with key to the Central American species, Zootaxa 4335 (1), pp. 1-72: 40-41

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Dissomphalus arbeius Brito & Azevedo

sp. nov.

Dissomphalus arbeius Brito & Azevedo  , sp. nov.

( Figs 17View FIGURES 13 – 24, 48View FIGURES 45 – 56, 79View FIGURES 76 – 87, 165–166View FIGURES 163 – 173)

Description. Male. Body length 2.00 mm. Color: body castaneous. Head ( Fig. 17View FIGURES 13 – 24). Mandible with four distal teeth. Median clypeal lobe ill-defined, with one angulate tooth; median clypeal carina low in profile, complete or nearly so, straight in profile or nearly so. Frons weakly coriaceous and punctures small. Vertex crest weakly concave. Pronotal disc weakly coriaceous; anterior margin ecarinate. Metasoma ( Fig. 48View FIGURES 45 – 56). Tergal process, with lateral, shallow, linear and small depression, without tubercle, pit absent, with very short tuft of setae with one distinctly long seta. Posterior hypopygeal margin weakly concave ( Fig. 79View FIGURES 76 – 87). Genitalia ( Figs 165–166View FIGURES 163 – 173): paramere with dorsal margin wide basally; apical margin truncate. Aedeagal ventral ramus shorter than dorsal body, wide, abruptly narrowing apicad; cross section laminar; surface horizontal; inner margin straight; outer margin slightly sinuous; apex short, simple, angled outward; additional inner ramus absent; basal stub short and very narrow. Aedeagal dorsal body with two pairs of apical lobes; outer lobe short, subvertical and wide with apical margin abruptly acute and dorsad; inner pair stout, membranous and setose. Apodeme not extending beyond genital ring.

Variation. Head, mesosoma and metasoma light castaneous.

Remarks. This species is similar to D. gilvipes  by having the dorsal margin of the paramere expanded distally and the aedeagal ventral ramus abruptly narrowing apicad. However, this species has the apical lobes of the aedeagal dorsal body short and wider and the apical margin of the paramere crenulate, whereas D. gilvipes  has the apical lobes of the aedeagal dorsal body long and narrow and the apical margin of the paramere smooth.

Material examined. Holotype, ♂, PANAMA, Chiriqui: 2 km W Cerro Punta , 1700 m, [08°51'N, 82°35'W], 19. V –8.VI.1977, Peck & Howden [col.] ( CNCI)GoogleMaps  . Paratypes: 12♂, same data of holotypeGoogleMaps  ; 1♂, STRI n[ea]r Futurna {= Fortuna  }, 1260 m, 8°43'34"N, 82°14'25"W, 30.V.2000, Y[ellow] P[an] T[rap], B. & J. Gill [col.] ( CNCI)GoogleMaps  ; 15♂, P[arque] I[nternacional] L[a] A[mistad], Jurutungo , 1800 m, [08°54'N, 82°44'W], 30oct.5 nov 1994, Tr [ampa] Malaise (13♂) and Tr [ampas] Amarillas (2♂) A. Rodriguez [col.] ( MIUP)GoogleMaps  ; 2♂, 15 km NW Hato del Volcano , 1200 m, [08°46'N, 82°38'W], 24–31. V.1997, Peck & Howden [col.] ( CNCI)GoogleMaps  ; 3♂, Fortuna, Div. Cont.  Chiriqui- B[ocas del] Toro , 1070–1090 m, [08°46'16.5"N, 82°11'27.3"W], 8–11.abr.1999, Tr [ampas] Amar [illas], R. Cambra, A. Santos [col.] ( MIUP)GoogleMaps  ; Coclé Pr [ovincia]: 1♂, El Copé, Par [que] Nac [ional General de División ] Omar Torrijos H [errera], 570–670 m.s.n.m., [08º41'56"N, 80º39'17"W], 26–30 sep. 1999, Tr [ampa] Malaise, A. Santos, P. González [col.] ( MIUP)GoogleMaps  ; Panama Pr [ovincia]: 4♂, P[arque] Nac [ional] Altos de Campana , [08º43'15"W, 80º01'43"W], 10–14 ago 1999, Tr [ampa] Malaise, A. Santos, P. González [col.] ( MIUP)  ; 2♂, P[arque] Nac [ional] Sob [eranía], Camino, Plantación, [09º09'N, 79º43'W], 24 ago.–2 sep.1999 ( MIUP)GoogleMaps  ; 1♂, Cerro Azul, Las Nubes, [09º10'N, 79º25'W], 9–15–oct.1999, R. Cambra, A. Santos [col.] (MIUP); 2♂, Cerro Campana , 08°40'N, 79°50'W, 7–14. V.1973 ( CNCI).GoogleMaps 

Distribution ( Fig. 228View FIGURES 224 – 233). Panama (Chiriqui, Coclé and Panama).


Canadian National Collection Insects


Smithsonian Tropical Research Institute