Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae) Author Azevedo, C. O. text Zootaxa 2003 2003-10-24 338 1 1 74 https://biotaxa.org/Zootaxa/article/view/zootaxa.338.1.1 journal article 5465 10.11646/zootaxa.338.1.1 e0112ec9-2b66-4726-88b6-5db0df9e8b43 1175­5334 5019741 7146D5AC-DE68-4CB7-B004-3B85A46C69B4 ulceratus species­group Diagnosis. — Male. Metasomal tergite II with median depression with pair of tufts, basal portion of the dorsal margin of the paramere much developed, digitus wide medially, cuspis elongated, ventral ramus with inner margin sinuous basally, wide and narrowing apically. Comments. — This group is composed by D. concavatus Azevedo, 1999 , D. ulceratus Evans 1969 , D. rectilineus Azevedo, 1999 and D. dentiformis Azevedo, 1999 , which is restricted to the central­eastern region of South America.