The knowledge of insect biodiversity in natural areas of Argentina is limited, and termites are among the understudied taxa. In order to assess the diversity of Isoptera in some protected areas of the country, termite sampling within three National Parks of the Northeast region of Argentina was developed during 1995-1999. The results presented in this paper correspond to the Chaco National Park (Province of Chaco), Iguassu National Park (Province of Misiones) and Mburucuya National Park (Province of Corrientes). Among the four termite families recorded from Argentina, the family Termitidae was the best represented at the three sampled areas. The recorded genera (15) were: Rugitermes Holmgren and Tauritermes Krishna (Kalotermitidae), Heterotermes Frogatt (Rhinotermitidae), Cornitermes Wasmann, Cortaritermes Mathews, Diversitermes Holmgren, Nasutitermes Dudley, Velocitermes Holmgren (Nasutitermitinae), Amitermes Silvestri, Microcerotermes Silvestri, Neocapritermes Holmgren, Termes Linné (Termitinae), Anoplotermes Müller, Aparatermes Fontes and Ruptitermes Mathews (Apicotermitinae) (Termitidae). None of the collected termite species was common to the three National Parks, and only four of them were detected at two of the reserves. Due to the particular assemblage of termites found at each park, these three natural protected areas could be considered important reserves for the conservation of the termite fauna from the Northeast region of Argentina. Key words: biodiversity, termitological survey, reserves, neotropical region FAUNA DE CUPINS (INSECTA, ISOPTERA) DE PARQUES NACIONAIS DA REGIÃO NOROESTE DA ARGENTINARESUMO: O conhecimento da biodiversidade de insetos em áreas naturais da Argentina é limitado e os cupins estão entre os menos estudados. Para conhecer a diversidade dos Isóptera em algumas áreas protegidas do país, foi feita uma amostragem de cupins em três parques nacionais da região noroeste da Argentina, durante 1995Argentina, durante -1999. Os resultados aqui apresentados correspondem ao Chaco National Park (Província de Chaco), Iguassu National Park (Província de Misiones) e Mburucuya National Park (Província de Corrientes). Entre as quatro famílias de cupins registrados na Argentina, a família dos Termitidae foi a mais bem representada nas três áreas.

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Estructura del Tubo Digestivo de Dos Especies del Género Neotropical Tauritermes Krishna(Isoptera: Kalotermitidae)RESÚMEN -En este trabajo se analizó la anatomía del tubo digestivo de dos especies del género neotropical Tauritermes Krishna. Se presentan descripciones detalladas del enrollamiento del tubo digestivo y de la armadura cuticular de la molleja y del primer y segundo segmento proctodeal de pseudoergates. Aunque las principales características observadas en Tauritermes se incluyen en el patrón previamente conocido para la familia, fueron establecidas varias diferencias entre este género y otros de Kalotermitidae, principalmente con respecto a la longitud del mesenterón, la estructura y ornamentación cuticular del primer y segundo segmento proctodeal, la unión del tercer y cuarto segmento proctodeal y la armadura de la válvula rectal. Los caracteres del intestino, actualmente usados en sistemática y filogenia de termites, permiten diferenciar a Tauritermes de otros géneros de Kalotermitidae.PALABRAS CLAVE: Termite, anatomía intestinal, pseudoergate, morfología ABSTRACT -Gut morphology of two species of the neotropical genus Tauritermes Krishna was analyzed. Detailed description of the coiling gut and the cuticular armature of the gizzard and first and second proctodeal segments of pseudergates are given. The characteristics of Tauritermes gut followed the pattern previously known for the family, but some differences among this genus and other Kalotermitidae genera were: the length of the midgut, the structure and cuticular ornamentation of the first and second proctodeal segments, the junction of the third and fourth proctodeal segments and the armature of the rectal valve. Tauritermes was differentiated from other Kalotermitidae genera by means of the gut characters, currently used in termite systematics and phylogeny.

Objetivo: Conocer la subjetividad de una madre lactante basada en su entorno y cultura. Metodología:Diseño cualitativo, descriptivo fenomenológico. Los datos de la investigación se obtuvieron a partirdel análisis de las entrevistas administradas a madres lactantes al momento actual, entre 18 y 45residentes en Buenos Aires, Argentina. Como sustento teórico de este análisis, se utilizó el paradigmade la complejidad, de Edgar Morín y el aporte de diferentes ciencias tales como la sociología, medicinay psicología. Resultados: Las madres principiantes definieron el constructor de la maternidad en tornoa tres categorías centrales: cambios en el estilo de vida, sentimientos y las percepciones. Conclusión:La mayoría de las madres encuestadas tienen un conocimiento correcto sobre lactancia maternaexclusiva, relacionado con conocer sobre definición y ventajas de la lactancia materna exclusiva y lacantidad de lactancia materna que deben dar a sus hijos.

Termite (Insecta, Isoptera) assemblage of a gallery forest relic from the Chaco province (Argentina): taxonomic and functional groups.-Termite fauna of the gallery forest in the Colonia Benitez Reserve (Chaco province, Argentina) were analyzed using the rapid diversity assessment protocol (100 x 2 m transects). Twelve species, 10 genera and two families (Kalotermitidae and Termitidae), were detected, comprising the four feeding groups recognized for termites. True soil-feeders (IV) showed the highest species richness, and dead wood and grasses feeders (II) had the highest relative abundance. The most frequently occupied microhabitats were dead wood pieces lying on the ground. These results indicate that the Reserve harbors a diverse termite community similar to the 'monte fuerte' isopteran fauna (91.6% shared species). Our findings also support the Reserve´s value as a well-preserved fragment of the original gallery forest and emphasize the need to promote its conservation.