HYMENOPTERA: First record of Platythyrea Roger, 1863, (Hymenoptera: Formicidae: Ponerinae) from Jalisco, México (In Spanish) Vásquez- Bolaños, M. ................................................................................................................................................... 71

SCORPIONIDA: Taxonomic update about scorpions of West Central México (In Spanish) Ponce Saavedra, J. & Francke B., O. F. .................................................................................................................................................... 73

HEMIPTERA: First records of “ficus whitefly” Singhiella simplex (Singh, 1931) (Hemiptera: Aleyrodidae) for Tamaulipas and Nayarit, México (In Spanish) Nikolaevna Myartseva, S., Coronado Blanco, J. M. & Ruíz Cancino, E. ..................................................................................................................................................... 81

ODONATA: First records of three species of Zygoptera (Insecta: Odonata) from Jalisco, México (In Spanish)    Smith-Gómez, S. A................................................................................................................................................... 83

ODONATA: Preliminary checklist of the odonats (Insecta: Odonata) from Guanajuato, México (In Spanish)
   Novelo-Gutiérrez, R. & Gómez-Anaya, J. A. ................................................................................ 85

HEMIPTERA: Aleurodicus chirripoensis Martin, 2008 (Sternorrhyncha: Aleyrodidae): a new pest of whitefly affecting bananas in Costa Rica (In Spanish) Guillén Sánchez, C. & Laprade Coto, S. ..................................................................................................................................................... 89

COLEOPTERA: Curculionids (Coleoptera) in Hass avocado orchads (Persea americana Mill) in Xalisco, Nayarit (In Spanish) Soto Hernández, M., García Martínez, O. & Carbajal Cazola, C. ......…............................................................................................................................................ 93

COLEOPTERA: Biology of Hyperaspis trifurcata Schaeffer in laboratory conditions (In Spanish) Ramírez A., S. Santana O., N. & Solís A., J. F. .................................................................................................................................................... 99

COLEOPTERA: A new Species of Scaptolenus LeConte (Coleoptera: Elateridae: Cebrioninae) from Sonora, México, with a checklist of species of northern México and the United States Johnson, P. J. .................................................................................................................................................... 105

HYMENOPTERA: Biogeographical patterns of ants (Hymenoptera: Formicidae) from Baja California Peninsula and Sonora, México, using PAE (In Spanish) Varela-Hernández, F. & Jones, R. .................................................................................................................................................... 111

CONTRIBUTIONS IN HONOR TO DOCTOR PEDRO REYES CASTILLO Dr. Pedro Reyes Castillo Deloya, C. ................................................................................................................................................... 123

COLEOPTERA: Staphylinidae of México: checklist update and papers published between 2002-2013 Navarrete-Heredia, J. L. & Newton, A. F. ................................................................................................................................................... 127

COLEOPTERA: A new species of Atractomerus Duponchel & Chevrolat (Coleoptera: Curculionidae: Anthonomini) from the El Cielo Biosphere Reserve in northeastern México (In Spanish) Jones, R. W. & Niño Maldonado, S. ....................................................................................................................................................141

COLEOPTERA: Paracratomorphus new genus (Coleoptera: Lampyridae: Cratomorphini) of México (In Spanish) Zaragoza-Caballero, S. ................................................................................................ 145

PSOCODEA: A new species of Euplocania Enderlein (Psocodea: ‘Psocoptera’: Ptiloneuridae), from Magdalena, Colombia, with a proposed classification of the genus García Aldrete, A. N., González Obando, R. & Carrejo, N. S. .................................................................................................................................................... 149

PSOCODEA: Epipsocetae (Psocodea: ‘Psocoptera’) from Valle del Cauca and NNP Gorgona, Colombia García Aldrete, A. N., González Obando, R., Carrejo, N. S., Mendivil, J. A. & Calderón, N. R. .................................................................................................................................................... 157

Continua en la tercera de forros

COLEOPTERA: Three new Mexican species of Phyllophaga Harris (Coleoptera: Melolonthidae: Melolonthinae) (In spanish)  Morón, M. A. ......................................................................................................................... ..........................173

HYMENOPTERA: Review of Andricus species (Hymenoptera, Cynipidae) producing woody tuberous oak galls in México and bordering areas of United States of America Pujade-Villar, J., Pérez-García, A. G., Equihua-Martínez, A., Estrada-Venegas, E. G., Cibrián-Tovar, D., Barrera-Ruíz, U. M. & Ferrer-Suay, M. .................................................................................................................................................... 183

CONTRIBUTIONS ON LATIN AMERICAN AQUATIC MACROINVERTEBRATES Macroinvertebrados acuáticos de Latino América: Presentación Domínguez, E. & M. Springer .......................................................................................................................................................209

HEMIPTERA: Description of the eggs and immature stages of Rhagovelia gastrotricha Padilla-Gil, 2011 and Paravelia daza Padilla-Gil y Moreira, 2011 (Hemiptera: Heteroptera: Veliidae) (In Spanish) Padilla-Gil, D. N. ......................................................................................................................................... 211

INSECTA: Aquatic insects of Puerto Rico: a list of families (In Spanish) Gutiérrez-Fonseca, P. E., Rosas, K. G. y & Rámirez, A. .........................................................................................................................215

HEMIPTERA: State of the Art and Catalog of the Naucoridae (Insecta: Heteroptera) in Central America (In Spanish) Herrera, F. ................................................................................................................... 221

DIPTERA: State of the Art of the Chironomidae Family (Insecta: Diptera) from Cuba (In Spanish)
   Bello González, O. C., Spies, M. & Téllez Martínez, B. ......................................................................233

INSECTA: Diversity of aquatic Entomofauna in three rivers from the Darién Ecoregion, Chocó (Colombia) (In Spanish) Contreras-Martínez, E. ................................................................................................... 243

COLEOPTERA: Is the elmid fauna of Colombia strongly marked by Nearctic elements? A remote analysis of genus names provided in 30 recently published benthic macroinvertebrate assessments: (Coleoptera: Byrrhoidea: Elmidae) Sondermann, W. .............................................................................................................................................................251

TRICHOPTERA: First record of Atriplectididae (Insecta: Trichoptera) for the department of Quindío, Colombia (In Spanish) Villarreal-Grisales, A.,  & García-Cárdenas, D. R. ............................................................................................................................................................ 261

MACROINVERTEBRATES: Aquatic Macroinvertebrate community composition  from small streams of the Andean region of Colombia, with emphasis on the entomofauna (In Spanish) María del Carmen Zúñiga, M. del C., Chará, J., Giraldo, L. P.,  Ana Marcela Chará-Serna, A. M. & Pedraza, G.X. …............................ 263

TAXONES NUEVOS PUBLICADOS EN DUGESIANA VOLUMEN 20 (2013) ........................................................................................................................................................... 278

REVISORES DE TRABAJOS PUBLICADOS EN 2013 ........................................................................................................................................................... 278

NORMAS EDITORIALES ........................................................................................................................................................... 279