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Twelve extant species of antlions are known from Hispaniola including four new species (Eremoleon petrophila, Eremoleon phasma, Purenleon nunezi, Purenleon woodruffi) and one new genus (Peruveleon). Five New World species are transferred into Peruveleon resulting in new combinations: Peruveleon bruneri (Alayo), Peruveleon camposi (Banks), Peruveleon dolichogaster (Navás), Peruveleon dorsalis (Banks), Peruveleon indiges (Walker). Vella fallax haitiensis Smith is considered a new synonym of Vella eggerti Esben-Petersen. Descriptions and records for the species are provided as well as keys to the adults and larvae. The larvae of eleven species were found and reared.
Thirty four species of Zethus are enumerated from Venezuela, providing known and new locality records. Six new species are described: Z. rubioi and Z. vincenti in the subgenus Zethusculus, Z. carpenteri and Z. milleri in the subgenus Zethoides, and Z. bolivarensis and Z. yepezi in the nominate subgenus. A key to the species of Venezuela is provided. The distribution patterns of Zethus are discussed.
Ten species of antlions are confirmed as present in Paraguay and seven additional species are suspected to be present there. All of the species are found also in Argentina and Brazil except for Eremoleon pulchra (Esben- Petersen) which is endemic to Paraguay. A key to the adults is provided as well as distributional data for Paraguay with two new country records (Ameromyia dimidiata Navás and Austroleon dispar (Banks)).
A cladistic analysis of the New World tribe Brachynemurini has resulted in several new taxonomic designations. The tribe is divided into 3 tribes, 2 of which are newly described. The Brachynemurini S.S. now contains 12 genera of which Argentoleon, Atricholeon, Mexoleon and Venezueleon are newly described. The Gnopholeontini (NEW TRIBE) includes 4 North American genera whereas the Lemolemini (NEW TRIBE) contains 6 South American genera of which Ecualeon and Galapagoleon are newly described. Descriptions of genera in the 3 tribes, based on adults and known larvae, are given. Keys to the genera in each tribe are provided, as well as a key to the tribes of Myrmeleontidae.
The tribe Acanthaclisini Navas contains 14 described genera which we recognize as valid. We have reared larvae of 8 of these (Acanthaclisis Rambur, Centroclisis Navas, Fadrina Navas, Paranthaclisis Banks, Phanoclisis Banks, Synclisis Navas, Syngenes Kolbe, and Vella Navas). In addition, we have studied preserved larvae from Australia which probably represent the genus Heoclisis Navas. This represents the majority of the taxa, lacking only the small genera Avia Navas, Cosina Navas, Madrasta Navas, Mestressa Navas, and Stiphroneuria Gerstaecker. Studies of these larvae have revealed structural differences, especially of the mandible, which we have employed to provide identification of these genera by means of descriptions, keys, and illustrations. Also, since no modern key exists, we are providing a key to the genera based on adults which will provide some further insight on the generic relationships. Observations on the tribal differences of Myrmeleontidae based on larvae are made with a preliminary key to the known tribes.
Mansell (1983) described two new species and genera of Crocinae from Peru and Bolivia bringing the total number of South American species of this subfamily to five species. However, all five species occur well south of the equator. Recently the authors discovered a sixth species in northern Venezuela greatly extending the northern range of the family in South America. This new species belongs to the genus Moranida Mansell. Both adults and larvae were found and are described here with a key to the species of Crocinae of South America. We also found and reared Moranida peruviensis Mansell from Lambayeque, Peru, and provide this new record. This paper represents contribution No. 645 of the Bureau of Entomology.
A taxonomic study of the new world genus Dimarella has led to the recognition of 17 species, 9 of which are newly described. Three subgenera are recognized, one of which is described as new. Larvae are described for 11 species and biological data are given. Keys to adults and larvae are provided as well as photographs of larvae and taxonomic drawings. Distribution is summarized in maps.
Additional descriptive information is given for the genus Ananthidium Urban with a key to species. Also, new geographical and floral records are given. A key to the genera of the Anthidiini of Argentina is provided. Bothranthidium Moure is considered a subgenus of Anthodioctes. A brief discussion of generic characters of the South American genera are given. Carlotica Moure & Urban is placed as a synonym of Epanthidium Moure. Also, Saranthidium Moore & Hurd is considered as a subgenus of Hypanthidiodes Moore.
Larvae of thirty one species of antlions (Neuroptera: Myrmeleontidae) belonging to eleven genera live in the protection of cave mouths or large rock overhangs in Australia. New taxa proposed here include the following three new genera: Australeon, Newleon, Speleon. The following twelve new species are described: Froggattisca kakadu; Froggattisca rennerensis; Newleon fragilis; Speleon cavernicolus; Speleon pilliga; Speleon yallingup; Stenoleon xanthopsis; Xantholeon cavernicolus; Xantholeon kakadu; Xantholeon newi; Xantholeon pallens; Xantholeon pentlandensis. Two cave species are transferred into a new genus becoming new combinations: Australeon illustris (Gerstaecker), Australeon manselli (New and Matsura). The small non-cave species previously placed in Stenoleon Tillyard are transferred to Bandidus Navás, becoming B. gradostriatus (New), B. copleyensis (New), B. grandithecus (New), and B. navasi (New), new combinations. All known species of six genera (Stenoleon Tillyard, Xantholeon Tillyard, Eophanes Banks and three new genera) are known only in cave mouths. Also, species of Heoclisis Navás, Froggattisca Esben Petersen, Glenoleon Banks, Heoclisis Navás and Myrmeleon Linnaeus contain species living in cave mouths. Two main types of caves are found in Australia; those with loose organic material and those with loose inorganic material. The cave habitat is divided into four zones and several subzones. Many species are restricted to one zone or another but species of Stenoleon may overlap zones. Discussions of the species and some of their biological requirements are provided. One new parasite record is given, an undetermined species of Echthrobacella Girault (Hymenoptera: Encyrtidae) reared from the larvae of Speleon yallingup Miller and Stange. Diagnoses or descriptions are given for all of these cave species including distributional data. Keys to the cave mouth inhabiting antlions of Australia (adults and larvae) are provided including a revised key to the Xantholeon Tillyard.
New records of Myrmeleontidae from Paraguay are presented: Dimares elegans (Perty, 1833), Glenurus croesus Banks, 1922, Glenurus penningtoni (Navás, 1918a) and Vella fallax (Rambur, 1842). The total number of species now recorded from the country is fourteen among 11 genera. Specimens of Dimares elegans from east (Cerrado) and west (Chaco) of the Paraguay River are phenotypically distinct; those west of the Paraguay River are assigned to the form “lepida” Navás, 1912. More research is required to understand the taxonomic limits in this genus.
Descriptions or diagnoses are given for 36 species of New World Eremoleon including 12 new species:
Eremoleon attenuatus, E. durangoensis, E. jacumba, E. jamaica, E. inca, E. monagas, E. morazani, E. pygmaeus, E. samne, E. tanya, E. tepuyiensis and E. venezolanus. A neotype is designated for Hesperoleon atomarius Navás 1933.
The larvae of 25 species are described and keyed. Keys to the adults and larvae are given, and biological notes are provided. Twenty-five species were reared from larvae found in cave mouths, rock overhangs, or other less common habitats; for example, E. nigribasis were found in deep recesses of mammal burrows, E. gracile were reared from reptile holes in the ground, E. punctipennis were found in beetle frass beneath logs, and E. femoralis in small twig holes or abandoned termite galleries in termite frass. Many new bombyliid and chalcidid parasites are listed.
A new genus, Dejunaleon Miller and Stange, is described with two new species: Dejunaleon loja Miller and Dejunaleon maculosus Stange (Neuroptera: Myrmeleontidae: Brachynemurini). A key to species is provided as well as distributional data. A description of the larva of Dejunaleon loja is given. A key to genera of the tribe Brachynemurini is provided based on larvae and adults.
Nine species of Navasoleon (Neuroptera: Myrmeleontidae: Nemoleontini) are recognized in the present work with the description of seven new species: N. amazonas Stange, N. brasiliensis Miller, N. egeri Stange, N. lithophilus Miller, N. lotti Stange, N. tarsalis Miller, and N. venezolanus Stange. Navasoleon bosqui (Navás) is designated a nomen dubium. A key to the species is provided as well as to the genera of Nemoleontini with closing pretarsal claws. The larvae of two species are described and keyed with biological notes. Biological data presented in Miller and Stange (1985), erroneously attributed to N. bolivianus (Banks), has now been corrected to N. lithophilus. Included in this treatise are 71 color photographs including photos of male and female terminalia, male genitalia, and two species of larvae.
Twenty six species of the genus Purenleon Stange (Neuroptera: Myrmeleontidae: Nemoleontini) are recognized from the New World, of which ten are described as new species: P. oaxacae, P. fernandezi, P. tibialis, P. adamsi, P. andinus, P. apache, P. aztecus, P. cavei, P. farri and P. toltecus. Neotypes are designated for Psammoleon banksi Esben-Petersen 1933 and for Formicaleo inaequalis Navás 1913. The larvae of sixteen species have been reared and are described with data on their biologies. The genus is subdivided into three species groups based mostly on leg structure. The inscriptus group consists of fi ve species, the tibialis group consists of two species and the rest of the species are in the bistictus group. Keys to the species based both on adults and larvae are provided and descriptions given.
Eleven species of Zethus are reported for the West Indies including two new species. A re-evaluation of Z. albopictus Smith is accomplished based on new material from Hispaniola leading to the creation of a new species group. A new species from St. Vincent is described which is the first known representative of the Z. sichelianus group from the West Indies. Also, a new species of the Z. cubensis group is described from San Salvador. New records are provided for many species except Z. dentostipes Bohart and Stange, Z. islandicus Bohart and Stange and Z. arietis (Fabricius) which are still known only from the holotypes. A key to species is provided.