taxonID	type	description	language	source
03BAD533FFD6381CFF5EFACD6992FEF1.taxon	materials_examined	Material. Holotype female, CNU-MEC-NN 2009145 - 1 and CNU-MEC-NN 2009145 - 2, positive and negative. Paratype, female, CNU-MEC-NN 2009236. Horizon and locality. Jiulongshan Formation, Middle Jurassic, Daohugou Village, Ningcheng County, Inner Mongolia, China.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD6381CFF5EFACD6992FEF1.taxon	diagnosis	Diagnosis. Costal area slightly broad. M with 5 branches. Cu 1 + M forked beyond the cross-vein cu 1 + mcu 2.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD6381CFF5EFACD6992FEF1.taxon	description	Description. Antenna filiform, with 16 segments visible. Legs slender. Tibia with 2 tibial spurs at apex longer than femur. Tarsus with 5 tarsomeres; basitarsus approximately equal to half tarsus. Two claws at end of pretarsus. Surface of all legs covered with setae. Setae irregularly arranged. In forewings, front edge of C somewhat convex. Costal area slightly broad. A distinct pterostigma present. Sc with 2 branches. Sc 1 ending at C less than half length of forewing, and Sc 2 terminating at C near pterostigmal area. One short cross-vein sc 2 - r 1 before pterostigma. Cross-vein r 1 - r 2 under pterostigma. Crossvein r 3 - r 4 at same level of cross-vein r 1 - r 2. Cross-vein r 5 - m 1 + 2 approximately at middle of wing length. Crossvein r 5 - m 1 before cross-vein r 4 - r 5. Rs with 4 branches. Conspicuous thyridium at the fork of M. M with 5 branches. M 1 with 2 branches (M 1 a, M 1 b). M 3 + 4 divided beyond the fork of M 1 + 2. Cross-vein m 1 + 2 - m 3 between M 1 + 2 and M 3. Cross-vein m-cu not straight, somewhat S-shaped. Cu 1 coalesced with M for a short distance and separated from M beyond cross-vein cu 1 + m-cu 2. 1 A and 2 A almost parallel, one cross-vein a 1 - a 2 between them. 3 A absent. Hind wings shorter than forewings. Sc simple, terminating at C much earlier before pterostigma. R 1 curved under pterostigma and connected with C by a cross-vein c-r 1. M 1 divided into 2 branches in right hind wing, but not forked in left hind wing; Anal vein absent. Abdomen of female with 11 segments, segments 9 – 11 distinctly smaller than segment 8. A pair of cerci at the end of abdomen, each one with 3 segments, basal segments fused the eleventh abdomen segment. Body length 9.3 mm; forewing length 10.2 mm, width 3.5 mm; hind wing length 8.7 mm, width 3.3 mm.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD6381CFF5EFACD6992FEF1.taxon	etymology	Etymology. The specific epithet derives from Latin word exquisitus (exquisite), for its well-preserved condition.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD6381CFF5EFACD6992FEF1.taxon	discussion	Remarks. I. exquisita sp. nov. resembles I. multa in venation pattern: a distinct pterostigma, similar pattern of longitudinal veins, Rs 4 - branched; and the same number and location of cross-veins. However, it differs from the latter by having M 5 - branched in the forewings and right hind wing, although the left hind wing has M 4 - branched. A 5 - branched M, also seen in the paratype, appears to be a relatively stable character.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD0381DFF5EF9446F12FC13.taxon	materials_examined	Material. Holotype female, CNU-MEC-NN 2009311 - 1 and CNU-MEC-NN 2009311 - 2, positive and negative. Paratype, CNU-MEC-NN 2009222 - 1 and CNU-MEC-NN 2009222 - 2, positive and negative. Horizon and locality. Jiulongshan Formation, Middle Jurassic, Daohugou Village, Ningcheng County, Inner Mongolia, China.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD0381DFF5EF9446F12FC13.taxon	diagnosis	Diagnosis. Costal area narrow. In forewing, Sc simple, terminating at C near pterostigma; M with 4 branches; Cu 1 and M forked before the cross-vein cu 1 - cu 2.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD0381DFF5EF9446F12FC13.taxon	description	Description. Antenna filiform, incompletely preserved. Femur shorter than tibia. Tibial spurs not present. Setae irregularly arranged. Costal area narrow, one cross-vein c-sc between C and Sc. Sc simple, ending at C and extending to pterostigmal area. One short cross-vein sc 2 - r 1 before pterostigma. Rs arised at the same level to cross-vein csc. Rs with 4 branches. Length of R 2 two-thirds that of stem of R 2 + 3. Cross-vein r 1 - r 2 at level of pterostigma. Cross-vein r 3 - r 4 at level of cross-vein r 1 - r 2. Cross-vein r 5 - m 1 + 2 approximately at middle of wing length. Crossvein r 5 - m 1 proximal to cross-vein r 4 - r 5. One cross-vein r 4 - r 5 dividing cell R 4 into 2 cells. Conspicuous thyridium at fork of M, which has 4 branches. M 3 + 4 divided beyond the fork of M 1 + 2; cross-vein m 1 + 2 - m 3 between M 1 + 2 and M 3; cross-vein m-cu not straight, slightly S-shaped. Cu 1 coalesced with M for a short distance and separated from M before cross-vein cu 1 - cu 2. One cross-vein a 1 - a 2 connected 1 A and 2 A. 3 A absent. Female abdomen with 11 segments, segments 9 – 11 smaller than segment 8. One pair of cerci located at apex of abdomen. Right cercus with 3 segments. Third segment of left cercus not preserved. Basal segments fused with abdomen segment 11. Body length 7.8 mm, forewing length 8.2 mm, width 2.6 mm.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD0381DFF5EF9446F12FC13.taxon	etymology	Etymology. From the Latin word laetus (clear), indicating venation is very clearly.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
03BAD533FFD0381DFF5EF9446F12FC13.taxon	discussion	Remarks. The new species shows a similarity to Itaphlebia reducta but differs from the latter by location of the fork of R 2 + 3 and length of R 2 compared with R 2 + 3.	en	Liu, Nan, Zhao, Yunyun, Ren, Dong (2010): Two new fossil species of Itaphlebia (Mecoptera: Nannochoristidae) from Jiulongshan Formation, Inner Mongolia, China. Zootaxa 2420: 37-45, DOI: 10.5281/zenodo.194461
