Browsing by Author "Krishna, Kumar."
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ItemThe African genus Foraminitermes Holmgren (Isoptera, Termitidae, Termitinae). American Museum novitates ; no. 2161(New York, N.Y. : American Museum of Natural History, 1963) Krishna, Kumar."The African termite genus Foraminitermes is redescribed, and its phylogeny is discussed. The genus name 'Ceratotermes' is relegated to synonymy. Two new species, F. coatoni and F. harrisi, are described and illustrated. The soldier of F. tubifrons and the imago of F. valens are described and illustrated for the first time. Foraminitermes corniferus, F. rhinoceros, F. tubifrons, and F. valens are redescribed and illustrated"--P. 21-22. ItemDiverse Rhinotermitidae and Termitidae (Isoptera) in Dominican amber. (American Museum novitates, no. 3640)(2009) Krishna, Kumar.; Grimaldi, David A.The most diverse and best-preserved paleofauna of the higher termites heretofore known, all found in Miocene amber of the Dominican Republic, is described. The imago of Coptotermes priscus Emerson is redescribed, and the soldier of C. priscus, the first known fossil soldier of this genus, is described. The fauna includes the following 29 new species, all in existing genera, with Krishna and Grimaldi as authors of each: in the Rhinotermitidae, two new species based on imagoes of each--Coptotermes hirsutus and C. paleodominicanus; in the Termitidae, 23 new species based on imagoes--Amitermes lucidus, Anoplotermes bohio, A. cacique, A. carib, A. maboya, A. naboria, A. nitaino, A. quisqueya, A. taino, Atlantitermes antillea, A. caribea, A. magnoculus, Microcerotermes insulanus, M. setosus, Nasutitermes amplioculatus, N. incisus, N. magnocellus, N. medioculatus, N. pilosus, N. seminudus, Subulitermes hispaniola, S. insularis, and Termes primitivus; in the Nasutitermitinae four new species based on nasute soldiers--Caribitermes hispaniola, Nasutitermes rotundicephalus, Parvitermes longinasus, and Velocitermes bulbus. This brings the total termite fauna in Dominican amber to four families, 17 genera, and 39 species, a number that exceeds that of the present-day fauna of Hispaniola. Biogeographical, paleoecological, and phylogenetic implications of the Dominican amber termites are discussed. ItemFamily-group names for termites (Isoptera). American Museum novitates ; no. 3432(New York, NY : American Museum of Natural History, 2004) Engel, Michael S.; Krishna, Kumar.Thirty-nine available family-group names are identified within the insect order Isoptera (termites). For all names the correct author, date, type genus, and combining stem are provided for the first time. This nomenclatural compilation is done to stabilize the usage of family-group names in the Isoptera in advance of a world catalog. Several problems of priority are identified and discussed. The little understood subfamily Foraminitermitinae is diagnosed; while generally believed by many authors to be a new, unnamed subfamily, it was in fact established by Holmgren nearly a century ago. The subfamilies Syntermitinae and Sphaerotermitinae are newly proposed for the mandibulate genera of nasute termites and for Sphaerotermes, respectively. The classification of Isoptera is briefly outlined. ItemThe first Cretaceous Rhinotermitidae (Isoptera) : a new species, genus, and subfamily in Burmese amber. (American Museum novitates, no. 3390)(New York, NY : American Museum of Natural History, 2003) Krishna, Kumar.; Grimaldi, David A.A new subfamily, genus, and species, Archeorhinotermitinae, Archeorhinotermes rossi, from Burmese amber, dated as Turonian-Cenomanian (90-100 mya) of the Cretaceous period, are described and figured. Comparisons are made between the other subfamilies of the Rhinotermitidae and the new subfamily. This is the first fossil record of the family Rhinotermitidae from the Cretaceous. ItemA generic revision and phylogenetic study of the family Kalotermitidae (Isoptera). Bulletin of the AMNH ; v. 122, article 4(New York : [American Museum of Natural History], 1961) Krishna, Kumar."The family Kalotermitidae is redescribed. The subfamily names 'Electrotermitinae' and 'Kalotermitinae' are placed in synonymy. The fossil genus Eotermes is removed from the family Kalotermitidae and placed in the family Hodotermitidae. 2. Three hundred and fifty-three species, fossil and living, are classified into 24 genera. Of these 24 genera, the following eight are new: Postelectrotermes, Ceratokalotermes, Comatermes, Incisitermes, Marginitermes, Tauritermes, Bifiditermes, and Bicornitermes. The genera Pterotermes, Proneotermes, Allotermes, and Epicalotermes are resurrected. The genus name 'Proglyptotermes' is relegated to synonymy. All the genera are described, and the generitype species are illustrated. 3. The generic classification is based on a constellation of conservative, adaptive, and regressed characters of both the imago and the soldier castes. 4. The phylogeny of the genera is discussed. The imago-nymph mandible indicates two main evolutionary lines. The first line is represented by the Proelectrotermes-Calcaritermes complex, and the second line by the Incisitermes-Cryptotermes complex. 5. Several cases of convergence are illustrated. In both the main lines of the family Kalotermitidae, the phragmotic head, the enlarged third antennal segment, and the slightly sclerotized median vein have all evolved independently many times. Also, the arolium has been convergently lost in many genera. 6. A discussion on conservative and regressed characters is included. Characters that show phylogenetic advancement or regression are also listed. 7. It is evident from the data on the hosts and Protozoa that the evolution of the genera of the Protozoa did not occur in conjunction with the evolution of the host genera and that the differentiation of the Protozoa genera took place before the differentiation of the host genera"--P. 400. ItemInsects from the Santana Formation, Lower Cretaceous, of Brazil. Bulletin of the AMNH ; no. 195([New York] : American Museum of Natural History, 1990) Grimaldi, David A.; Maisey, John G.; McCafferty, William P.; Carle, Frank Louis.; Wighton, Dennis C.; Popham, Edward J.; Krishna, Kumar.; Hamilton, K. G. A.; Darling, D. Christopher.; Sharkey, Michael J.; Oswald, John D. ItemNew Dolichorhinotermes from Ecuador and in Mexican amber (Isoptera, Rhinotermitidae) ; American Museum novitates, no. 3592(New York, NY : American Museum of Natural History, 2007) Engel, Michael S.; Krishna, Kumar.Two new species of the Neotropical termite genus Dolichorhinotermes Snyder and Emerson (Rhinotermitidae: Rhinotermitinae) are described and figured. Dolichorhinotermes lanciarius Engel and Krishna, new species, from southeastern Ecuador, is the largest species of the genus and is distinctive in both the major and minor soldier caste. Dolichorhinotermes apopnus Engel and Krishna, new species, preserved in earliest Miocene amber from Chiapas, Mexico, is similar to D. dominicanus Schlemmermeyer and Cancello in Early Miocene (Burdigalian) amber from the Dominican Republic but differs in several significant respects. Distinctions between Rhinotermes and Dolichorhinotermes are briefly discussed. ItemA new fossil species from Dominican amber of the living Australian termite genus Mastotermes (Isoptera, Mastotermitidae). American Museum novitates ; no. 3021(New York, N.Y. : American Museum of Natural History, 1991) Krishna, Kumar.; Grimaldi, David A. ItemA new fossil species of termite from Dominican amber, Cryptotermes yamini (Isoptera, Kalotermitidae). American Museum novitates ; no. 2884(New York, N.Y. : American Museum of Natural History, 1987) Krishna, Kumar.; Bacchus, Solomon. ItemA new fossil species of termite from Mexican amber, Mastotermes electromexicus (Isoptera, Mastotermitidae). American Museum novitates ; no. 2767(New York, N.Y. : American Museum of Natural History, 1983) Krishna, Kumar.; Emerson, Alfred Edwards, 1896-"A new fossil species of termite, Mastotermes electromexicus, is described from Upper Oligocene-Lower Miocene amber of Chiapas, Mexico. This is the first amber fossil of the family Mastotermitidae, the first fossil soldier of any termite species, and the first species of Mastotermes from the New World to be reported"--P. . ItemNew fossil species of termites of the subfamily Nasutitermitinae from Dominican and Mexican amber (Isoptera, Termitidae) / Kumar Krishna. American Museum novitates ; no. 3176(New York, N.Y. : American Museum of Natural History, 1996) Krishna, Kumar. ItemNew species and a hitherto undescribed imago caste of the genus Calcaritermes Snyder (Isoptera, Kalotermitidae). American Museum novitates ; no. 2098(New York, N.Y. : American Museum of Natural History, 1962) Krishna, Kumar. ItemNew species of the genera Allotermes Wasmann, Bicornitermes Krishna, Epicalotermes Silvestri, and Procryptotermes Holmgren (Isoptera, Kalotermitidae). American Museum novitates ; no. 2119(New York, N.Y. : American Museum of Natural History, 1962) Krishna, Kumar. ItemNew species of the genus Glyptotermes Froggatt from the Papuan, Oriental, Ethiopian, and Neotropical regions (Isoptera, Kalotermitidae). American Museum novitates ; no. 2089(New York, N.Y. : American Museum of Natural History, 1962) Krishna, Kumar.; Emerson, Alfred Edwards, 1896- ItemThe Oriental termite genus Labritermes Holmgren (Isoptera, Termitidae, Termitinae). American Museum novitates ; no. 2735(New York, N.Y. : American Museum of Natural History, 1982) Krishna, Kumar.; Adams, Cheryl Lynn."Two new species, Labritermes emersoni and L. kistneri, are added to the hitherto monotypic Oriental genus Labritermes. The genus and its type species, L. buttel-reepeni, are redescribed, and the close relationship of Labritermes to the African genus Forminitermes is shown"--p. . ItemPhylogeny and generic reclassification of the Capritermes complex (Isoptera, Termitidae, Termitinae). Bulletin of the AMNH ; v. 138, article 5(New York : [American Museum of Natural History], 1968) Krishna, Kumar."The termite genera with asymmetrical snapping mandibles in the soldier (Paracapritermes Hill, Protocapritermes Holmgren, Quasitermes Emerson, Capritermes Wasmann, Homallotermes John, Dicuspiditermes Krishna, Pericapritermes Silvestri, Procapritermes Holmgren, Labiocapritermes, new genus, Mirocapritermes Holmgren, Cornicapritermes Emerson, Dihoplotermes Araujo, Neocapritermes Holmgren, and Planicapritermes Emerson) are described and illustrated, and their phylogenetic relationships are discussed. A key to these genera is given. The genus Capritermes is treated in an entirely new sense. In it is now included only the single species C. capricornis (Wasmann) from Madagascar. The other species previously placed in Capritermes are now included in other genera. The genera Pseudocapritermes Kemner and Microcapritermes Mathur and Thapa are now considered synonyms of Procapritermes and Homallotermes, respectively. A new genus, Labiocapritermes, from India is described and illustrated, with its type species designated as L. distortus Silvestri, a species previously placed in Capritermes. The genus Pericapritermes, previously reported from the Ethiopian region only, now includes species from the Oriental and Papuan regions that were previously placed in Capritermes. Twelve species names are included as new synonyms"--P. 320. ItemA revision of the Indomalayan termite genus Homallotermes (Isoptera, Termitidae, Termitinae). American Museum novitates ; no. 2489(New York, N.Y. : American Museum of Natural History, 1972) Krishna, Kumar."Two new species, Homallotermes eleanorae Emerson and H. exiguus Krishna, and the hitherto unknown imago caste of H. pilosus (Mathur and Thapa) are described and illustrated. The previously known species, H. foraminifer (Haviland) and H. pilosus (Mathur and Thapa), are redescribed and illustrated. Homallotermes penangi (Holmgren) is treated as a synonym of H. foraminifer. The species H. huananensis Yu and Ping is removed from the genus Homallotermes and placed in the genus Procapritermes. A key to the imagoes and soldiers and a map showing the distribution of each species are included"--P. . ItemA revision of the neotropical termite genus Neocapritermes (Isoptera, Termitidae, Termitinae). Bulletin of the AMNH ; v. 138, article 3(New York : [American Museum of Natural History], 1968) Krishna, Kumar.; Araujo, R. L., 1912-"The neotropical termite genus Neocapritermes is redescribed, and its evolutionary relationships are discussed. Five new species, Neocapritermes araguaia, N. guyana, N. talpoides, N. taracua, and N. utiariti, are described and illustrated. The imago of N. braziliensis is described for the first time. The previously known species, N. angusticeps, N. bodkini, N. braziliensis, N. centralis, N. longinotus, N. opacus, N. parvus, N. talpa, and N. villosus, are redescribed and illustrated. A map showing the distibution of each species and a key to the species, including all known imagoes and soldiers, are also included"--P. 128. ItemThe species of Isoptera (Insecta) from the early Cretaceous Crato Formation : a revision ; American Museum novitates, no. 3626(New York, NY : American Museum of Natural History, 2008) Grimaldi, David A.; Engel, Michael S.; Krishna, Kumar.The termite species from Brazil's early Cretaceous (Aptian-aged) Crato (Santana) Formation are evaluated on the basis of the degree of character variation seen in modern species, using a series of 56 specimens, scanning electron microscopy of minute structures, and a bivariate plot of the proportional sizes of sclerotized body structures. Of the previously described species only the following are considered valid: Mariconitermes talicei Fontes and Vulcano, Meiatermes araripena Krishna, Cratomastotermes wolfschwenningeri Bechly, Cratokalotermes santanensis Bechly, and Cretarhinotermes novaolindense Bechly. The combination M. araripena Krishna (once placed in Cretatermes) is restored, and Cretatermes pereirai Fontes and Vulcano is proposed as a junior synonym of M. araripena. The following new species is described: Meiatermes hariolus Grimaldi, new species. The following are considered nomina dubia based on superficial and even contradictory diagnoses: Caatingatermitinae Martins-Neto et al. (likely synonymous with Hodotermitinae); Araripetermes nativa Martins-Neto et al. (nomen incorrectum, recte: nativus), Caatingatermes megacephalus Martins-Neto et al., and Nordestinatermes obesa Martins-Neto et al. (nomen incorrectum, recte: obesus). These are probably all new synonyms of the Cretaceous genus Meiatermes Lacasa-Ruiz and Martínez-Delclòs and of M. araripena in particular, but this assertion cannot be verified without access to the type specimens. Of the six definitive species of Crato termites, reconstructions are provided for four. All species appear to be basal taxa, either a stem group to Isoptera, to Hodotermitidae sensu lato, or to Kalotermitidae. Despite very partial preservation, Cretarhinotermes appears to be within the hodotermitid grade and not a rhinotermitid. Some specimens have yielded detailed preservation of soft internal tissues, including the midgut, which has further phylogenetic implications. ItemThe termite family Serritermitidae (Isoptera). American Museum novitates ; no. 2570(New York, N.Y. : American Museum of Natural History, 1975) Emerson, Alfred Edwards, 1896-; Krishna, Kumar."The monotypic termite family Serritermitidae Holmgren and Serritermes serrifer (Hagen and Bates) from Brazil are described and figured, with synonymies and bibliography. The imago, soldier, worker, and nymph are compared with all other families of Isoptera and related genera. New characters of Glossotermes Emerson and Macrorhinotermes Holmgren are given. Primitive and derivative, homologous and analogous characters and their use for phylogenetic and evolutionary inference are discussed in detail. External anatomy, glands, intestines, biogeography, ecology, nests, food, and the coevolution of termites and intestinal zooflagellates are discussed. Also included are hypotheses on the phylogeny of all termite familes including Serritermitidae, genetic persistence and change in Isoptera during 200 million years, and the natural selection of unitary social populations. Hypotheses on the Mesozoic origin of termite families are presented, based upon paleogeography, continental drift, and comparative morphology of living and fossil genera"--P. .