Choroterpes Eaton 1881
Creators: name: Selvakumar, C.
name: Subramanian, K. A.
name: Chandra, Kailash
name: Jehamalar, E. Eyarin
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Ephemeroptera
Leptophlebiidae
Choroterpes

description: Key to the known species of Choroterpes Eaton, 1881 in India (Larva)
1. Gills present on abdominal segments 2–7; maxillary and labial palp elongated and with long filtering setae ................................ 2
- Gills present on abdominal segments 1–7; maxillary and labial palp not as above ......................................................................... 3
2. Labrum with deep median emargination and sharp semicircular impression on the dorsal surface; maxilla with inner-apical angle produced as tusk-like process .......................................................................................... C. (Dilatognathus) nigella (Kang & Yang)
- Labrum with shallow median emargination and without sharp semicircular impression on the dorsal surface; maxilla with inner- apical angle not produced as tusk-like process .......................................... C. (Dilatognathus) nicobarensis Selvakumar & Chandra
3. Gills 2–7 monolamellate .............................................................. C. (Monochoroterpes) nandini Selvakumar & Sivaramakrishnan
- Gills 2–7 bilamellate ......................................................................................................................................................................... 4
4. Middle abdominal gills terminated in 3 processes with median projection longer than laterals... Choroterpes (Choroterpes) ........ 5
- Middle abdominal gills terminated in 3 slender subequal processes... Choroterpes (Euthraulus) .................................................... 6
5. Gill 1 single; upper and lower lamellae of gills 2–7 with 3 apical processes, median process relatively slender and longer than lat- erals ...................................................................................... C. (Choroterpes) kaegies Selvakumar, Subramanian & Chandra sp. n.
- Gill 1 double; upper and lower lamellae of gills 2–7 with 3 apical processes, median process relatively larger and longer than lat- erals .................................................................................................................................. C. (Choroterpes) petersi Tong & Dudgeon
6. Dorsal and ventral lamellae plate-like, narrow and terminating in three slender subequal processes, tracheae unbranched; antero- median emargination of labrum comparatively narrow and deeply cleft (‘V’ shaped)....................................................................... .............................................................................. C. (Euthraulus) nambiyarensis Selvakumar, Arunachalam & Sivaramakrishnan
- Dorsal and ventral lamellae plate-like, oval and terminating in three slender subequal processes, tracheae branched; anteromedian emargination of labrum deep (U-shaped) ............................... C. (Euthraulus) alagarensis Dinakaran, Balachandran & Anbalagan
description: Published as part of Selvakumar, C., Subramanian, K. A., Chandra, Kailash & Jehamalar, E. Eyarin, 2017, A new species of Choroterpes Eaton, 1881 (Ephemeroptera: Leptophlebiidae) from India, pp. 189-194 in Zootaxa 4338 (1) on page 193, DOI: 10.11646/zootaxa.4338.1.12, http://zenodo.org/record/1035542