Oligoneuria Pictet, 1843

Oligoneuria Pictet, 1843 View in CoL .

Included subfamilies

Chromarcyinae McCafferty, 1990; Colocrurinae McCafferty, 1990 ; Oligoneurinae McCafferty, 1990.

Diagnosis

Nymph: Head with anterior projection ( Fig. 1C, D); maxillary and labial palpi with two segments ( Fig. 1H); maxilla with apical angle acute* ( Fig. 1H); second segment of maxillary palp much longer than first* ( Fig. 1H); gill tufts present at base of maxillae and labium ( Fig. 1J); thorax with* and without epimera and episterna projected laterally ( Fig. 2A, B); inner margin of front femur and tibia with two rows of long setae; outer margin of front femur without fine, long, simple setae*; abdomen with posterolateral projections ( Fig. 2L–N); abdominal gill I inserted dorsally or ventrally ( Fig. 2L, O); inner lamella of gills absent ( Fig. 2U) or present and fibrilliform ( Fig. 2V, X).

Imago: Front wing with costal brace modified: from its proximal connection with costal vein, it passes behind C nearer to Sc up to its crossing with Sc and falling into radius anterior (RA) ( Kluge, 2004); front wing with apex of medius posterior 2 (MP2) approximated to apex of cubitus anterior (CuA), thus distance between apices of medius posterior 1 (MP1) and MP2 is greatly enlarged ( Kluge, 2004); front legs shorter than middle and hind legs ( Kluge, 2004); patella–tibial suture is lost on all legs of nymph, subimago and imago ( Kluge, 2004); both tarsal claws rounded* ( Fig. 3H).

Distribution

Pa l a e a r c t i c, N e a r c t i c, O r i e n t a l, N e o t r o p i c a l, Pa n a m a n i a n, M a d a g a s c a n, S a h a r o - A r a b i a n, Afrotropical and Sino-Japanese regions.

SUBFAMILY CHROMARCYINAE DEMOULIN, 1953

C h r o m a r c y s N a v á s, 1 9 3 2: 9 2 7 (t y p e s p e c i e s: Ch. magnifica View in CoL , original designation).

Chromarcyinae Demoulin, 1953: 1 ; Edmunds et al., 1963: 12; Edmunds et al., 1976: 182; McCafferty & Edmunds, 1979: 6; Landa & Soldán, 1985: 94; Hubbard, 1990: 6; McCafferty, 1990: 36.

Chromarcyidae Tshernova, 1970: 128 View in CoL .

Type genus