Rangomaramidae, Jaschhof & Didham, 2002

DE SOUZA AMORIM, DALTON & RINDAL, EIRIK, 2007, Phylogeny of the Mycetophiliformia, with proposal of the subfamilies Heterotrichinae, Ohakuneinae, and Chiletrichinae for the Rangomaramidae (Diptera, Bibionomorpha), Zootaxa 1535 (1), pp. 1-92 : 12-13

Key for Identification of the Genera of Rangomaramidae

1. r-m longitudinal, in line with second sector of Rs ( Ohakuneinae , subfam. n.) .......................................... 2

- r-m transverse or oblique ............................................................................................................................. 5

2. First sector of Rs visible ............................................................................................................................. 3

- First sector of Rs entirely missing .............................................................................................................. 4

3. M 1+2 complete ......................................................................................... ( Costa Rica) Rogambara Jaschhof

- M 1+2 incomplete at base ............................................................................ ( Costa Rica) Cabamofa Jaschhof

4. Rs originating before half of wing; base of M 4 complete.............................................................................. .......................................................................... ( Australia, Costa Rica, Chile, Brazil) Colonomyia Colless

- Rs originating beyond distal half of the wing; base of M 4 incomplete ......................................................... .................................................... New Zealand, Australia, Papua New Guinea, Chile) Ohakunea Edwards

5. First sector of Rs short; r-m present............................................................................................................. 6

- First sector of Rs long; r-m absent, tb much longer than m-cu ..................................................................... ........................................................ Rangomaraminae ( New Zealand) Rangomarama Jaschhof & Didham

6. R 5 running very close to C, first sector of Rs tiny, transverse, r-m scarcely visible; medial fork long, M 1 and M 2 diverging before middle of wing. Tergite 9 devoid of distal projections bearing strong spines ...... .................................... Heterotrichinae , subfam. n. (Europe and Japan, Baltic amber) Heterotricha Loew

- R 5 not close to C, first sector of Rs normally developed, oblique forward, r-m produced, at least slightly oblique backwards; medial fork short, M 1 and M 2 diverging beyond middle of wing. Tergite 9 bearing 1 or 2 pairs of distal projections with strong spines ( Chiletrichinae , subfam. n.) ............................................ 7

7. Proboscis long, maxillary palpus displaced to apex ............. ( South Africa) Rhynchoheterotricha Freeman

- Proboscis short, normal ............................................................................................................................... 8

8. M 1+2 /M 3+4 longer than m-cu ......................................................................... ( Kenya) Kenyatricha Chandler

- M 1+2 /M 3+4 shorter than m-cu ......................................................................................................................... 9

9. Rs originating before basal third of wing; R 1 reaching C about at middle of wing; M 1 and M 2 continuously diverging .............................................................................................( New Zealand) Insulatricha Jaschhof

- Rs originating beyond basal third of wing; R 1 reaching C at distal third of wing; M 1 not gradually diverging .............................................................................................................................................................. 10

10. m-cu reaching CuA very basally, basal cell slender ..............( Chile, southern Brazil) Chiletricha Chandler

- m-cu reaching CuA more distally, basal cell wide .......................................... ( Ecuador) Eratomyia n. gen.