| OCR Text |
Show 62 Species C Immature nymph. Length 6 mm. Pale yellowish brown in color dorsally, completely pale ventrally. Abdomen with two narrow pale stripes on either side of dorsal midline of each tergum, forming a complete line from segments 18. Distribution This species of El Paraiso, was and in found in large a a large pond river the on Zamorano, Department at south coast, the in Department of Valle. Genus Adults of this genus can Baetis Leach be few or cross no of Nymphs gills they are on are the before veins The fore can be distinguished 1-7 and no setae Pseudocloeon oval by the Pseudocloeon does or from Callibaetis rather fact than doubLe; by from Baetodes on the fact they may costal no only a very paired. are tubercles the in wing has and with wings present Baetis distinguished and hind veins; marginal intercalaries segments single bulla; from others distinguished family by the following characteristics. cross 1815 be that Baetis has hind wing by having the dorsal that the midline; gills separated from pads present wheras not. Distribution Nearly cosmopolitan, eept region. This genus as it is not found in the Australian presently constituted is probably polyphyletic. I Centr.al American records Three species of Baetis have been Baetts sinuosus Navas from Costa Rica, reported Baetis from Central America salvini Eaton from |
