Dissomphalus asitius Brito & Azevedo, 2017

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 : 26-27

Dissomphalus asitius Brito & Azevedo , sp. nov.

( Figs 6 , 37 , 68 , 125–126 )

Description. Male. Body length 2.03 mm. Color: head and mesosoma dark castaneous; metasoma castaneous. Head ( Fig. 6 ). Mandible with two 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 straight. Pronotal disc coriaceous; anterior margin coarse. Metasoma ( Fig. 37 ). Tergal process with median, shallow, subcircular and large depression, with small, low and dorsad tubercle placed on center of depression, pit very small, with short and dense tuft of setae. Posterior hypopygeal margin strongly concave ( Fig. 68 ). Genitalia ( Figs 125–126 ): paramere with dorsal margin entirely wide; apical margin truncate. Aedeagal ventral ramus shorter than dorsal body, wide, abruptly narrowing apicad; cross section laminar; surface subvertical; inner margin sinuous; outer margin sinuous; apex long, toothed, angled outward; additional inner ramus absent; basal stub absent. Aedeagal dorsal body two pairs of apical lobes; outer lobe long, horizontal and wide, with apical margin acute and dorsad, inner pair stout, membranous and setose. Apodeme not extending beyond genital ring.

Remarks. This species is easily recognized by having the dorsal margin of the paramere almost straight, the apex of the outer lobe of the aedeagal dorsal body abruptly acute, the aedeagal ventral ramus with a large fold and the genital ring bifurcated in the distal region in ventral view. This combination of characters is unusual for bifoveatus species-group.

Material examined. Holotype, ♂, PANAMA, Bocas del Toro: Wekso, Teribe, P [arque] I[nternacional] L[a] A[mistad], 50 msnm, [09º24'25"N, 82º56'20"W], 17–24 oct. 1999, Tr [ampa] Malaise, A. Santos[col.] ( MIUP) . Paratypes: 5♂, same data as holotype .

Distribution ( Fig. 228 ). Panama (Bocas del Toro).

Figures

FIGURES 1 – 12. Dissomphalus spp., ♂, head, dorsal view, except 2 lateral view. 1 – 2. D. isteus sp. nov. 3. D. azagus sp. nov. 4. D. asfartus sp. nov. 5. D. iozus sp. nov. 6. D. asitius sp. nov. 7. D. ibocius sp. nov. 8. D. tisinus sp. nov. 9. D. ardonius sp. nov. 10. D. arteus sp. nov. 11. D. ettus sp. nov. 12. D. ibrastus sp. nov.. Scale bars = 20 µm, except fig. 10 = 50 µm and fig. 4 = 100 µm.

FIGURES 33 – 44. Dissomphalus spp., ♂, metasomal tergal process, dorsal view. 33. D. isteus sp. nov. 34. D. azagus sp. nov. 35. D. asfartus sp. nov. 36. D. iozus sp. nov. 37. D. asitius sp. nov. 38. D. ibocius sp. nov. 39. D. tisinus sp. nov. 40. D. ardonius sp. nov. 41. D. arteus sp. nov. 42. D. ettus sp. nov. 43. D. ibrastus sp. nov. 44. D. racarus sp. nov.. Scale bars = 20 µm, except fig. 35 = 200 µm.

FIGURES 64 – 75. Dissomphalus spp., ♂, hypopygium, internal view. 64. D. isteus sp. nov. 65. D. azagus sp. nov. 66. D. asfartus sp. nov. 67. D. iozus sp. nov. 68. D. asitius sp. nov. 69. D. ibocius sp. nov. 70. D. tisinus sp. nov. 71. D. ardonius sp. nov. 72. D. arteus sp. nov. 73. D. ettus sp. nov. 74. D. ibrastus sp. nov. 75. D. racarus sp. nov.. Scale bars = 125 µm.

FIGURES 123 – 135. Dissomphalus spp., ♂, genitália. 123 – 124. D. angulatus 123. Ventral view. 124. Lateral view. 125 – 126. D. asitius sp. nov. 125. Dorsal view. 126. Ventral view. 127 – 128. D. ibocius sp. nov. 127. Dorsal view. 128. Ventral view. 129 – 130. D. tisinus sp. nov. 129. Dorsal view. 130. Ventral view. 131 – 132. D. cervoides 131. Dorsal view. 132. Ventral view. 133 – 135. D. ardonius sp. nov. 133. Dorsal view. 134. Ventral view. 135. Lateral view. Scale bars = 250 µm.

FIGURES 224 – 233. Known distribution of Dissomphalus in Panama. 224. Provinces and Counties of Panama. 1. Bocas del Toro. 2. Chiriquí. 3. Ngöbe-Buglé County. 4. Veraguas. 5. Herrera. 6. Los Santos. 7. Colón. 8. Coclé. 9. Panama. 10. Guna Yala County. 11. Darién. 12. Emberá Woonan County. 225. D. abarus sp. nov., D. afestus sp. nov. and D. altivolans. 226. D. angulatus sp. nov., D. ardonius sp. nov. and D. aretisus sp. nov.. 227. D. apertus, D. areius sp. nov. and D. arteobius sp. nov.. 228. D. arbeius sp. nov., D. asitius sp. nov. and D. brasiliensis. 229. D. arteus sp. nov., D. cervoides and D. culteratus. 230. D. asfartus sp. nov.. 231. D. azagus sp. nov., D. bilobatus and D. coronatus. 232. D. borus sp. nov., D. citus sp. nov. and D. curvifoveatus. 233. D. declinatus, D. dilatatus and D. ettus sp. nov..