Dissomphalus isortus 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: 64

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Dissomphalus isortus Brito & Azevedo

sp. nov.

Dissomphalus isortus Brito & Azevedo  sp. nov.

( Figs 30View FIGURES 25 – 32, 61View FIGURES 57 – 63, 92View FIGURES 88 – 94, 217–218View FIGURES 211 – 222)

Description. Male. Body length 2.42 mm. Color: head and mesosoma dark castaneous; metasoma castaneous. Head ( Fig. 30View FIGURES 25 – 32). Mandible with two distal teeth. Median clypeal lobe subtrapezoidal, with one angulate tooth; median clypeal carina high in profile, incomplete apically, straight in profile or nearly so. Frons weakly coriaceous and punctures small. Vertex crest weakly concave. Pronotal disc weakly coriaceous; anterior margin coarse. Metasoma ( Fig. 61View FIGURES 57 – 63). Tergal process lateral, with deep, circular and large depression, with large, high and dorsad tubercle placed on center of depression, pit large, with short and dense tuft of setae. Posterior hypopygeal margin straight or nearly so ( Fig. 92View FIGURES 88 – 94). Genitalia ( Figs 217–218View FIGURES 211 – 222): paramere with dorsal margin entirely wide; apical margin truncate. Aedeagal ventral ramus as long as dorsal body, wide, progressively narrowing apicad; cross section laminar; surface horizontal; inner margin slightly sinuous; outer margin sinuous; apex long, simple, curved outward; additional inner ramus absent; basal stub short and very narrow. Aedeagal dorsal body with two pairs of apical lobes; outer lobe long, subvertical and narrow, with apical margin rounded and posterad; inner pair stout, membranous and setose. Apodeme extending beyond genital ring.

Variation. Depression of tergal process shallow.

Remarks. This species is easily recognized by having the paramere very wide, the apical lobes of the aedeagal dorsal body conical-shaped, the cuspis very small and the aedeagal ventral ramus wide basally. This species is similar to D. raziogus  sp. nov. by having the aedeagal dorsal body narrowing slightly apicad and the apical lobes of the aedeagal dorsal body in conical-shaped. However, this species has the tergal process present, the paramere very wide and the apex of apical lobes of the aedeagal dorsal body dorsad, whereas D. raziogus  sp. nov. has the tergal process absent, the paramere not wide and the apex of apical lobes of the aedeagal dorsal body mesad.

Material examined. Holotype, ♂, PANAMA, Coclé Pr [ovincia]: 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  . Paratypes: 5♂, same data as holotypeGoogleMaps  ; Darién Pr [ovincia]: 1♂, P[arque] N[acional] Darién, Pirre, Est [ación] Rancho Frio , 1000 m, [08°00'N, 77°45'W], 21mar –4 ab 2000, Malaise, Cambra, Santos, Bermudez [col.] ( MIUP)GoogleMaps  ; 2♂, Cana, Serraria {Serrania} de Pirre , 1450 m, 4–7.vi.1995 F[light] I[interception] T[rap], J Ashe, R. Brooks ( UFES). 

Distribution ( Fig. 238View FIGURES 234 – 243). Panama (Coclé and Darién).


Universidade Federal do Espirito Santo