Phylogeny of the Mycetophiliformia, with proposal of the subfamilies Heterotrichinae, Ohakuneinae, and Chiletrichinae for the Rangomaramidae (Diptera, Bibionomorpha)
Author
DE SOUZA AMORIM, DALTON
Author
RINDAL, EIRIK
text
Zootaxa
2007
2007-07-30
1535
1
1
92
http://dx.doi.org/10.11646/zootaxa.1535.1.1
journal article
10.11646/zootaxa.1535.1.1
11755334
5088515
8E7D8F88-E564-423C-922B-C7098D06125F
Chiletrichinae
,
subfam. n.
Type
genus.
Chiletricha
Chandler
, here designated
Diagnosis.
First flagellomere more than 1.5 times succeeding flagellomeres. Medial fork relatively short, M
1
and M
2
diverging beyond middle of wing; r-m oblique backwards. Male tergite 9 with 1 or 2 pairs of projections, each with number of short, black spines.
Description.
Three ocelli present, median one usually slightly more ventral than lateral ones, lateral ocelli apart from eye margin. Eyes at most slightly emarginate, eye bridge absent. Basal flagellomere typically elongate, more than 1.5 times succeeding flagellomeres, setae haphazardly distributed. Clypeus short, except in 1 species of
Rhynchoheterotricha
, in which it is as long as front tibia. Maxillary palpus with palpiger plus 4 palpomeres, distal article longer than preceding ones (in
Rhynchoheterotricha
and
Kenyatricha
unknown). Proepimeron triangular. Primary anapleural suture present. Mesepimeron elongate, quite straight, high, slen- der at ventral end. Laterotergite rounded posteriorly. R
5
long, R
1
shorter only in
Insulatricha
, first sector of Rs short, oblique forward, r-m short (except in
Eratomyia
,
gen. n.
), oblique backwards. Medial fork short, M
1
and M
2
diverging beyond middle of wing, tb (M
1+2
/M) longitudinal, at most slightly longer than m-cu. A
1
present, incomplete. Male tergite 9 with 1 or 2 pairs of distal projections, each with group of strong spines, a unique feature within Bibionomorpha.
3+4
Genera included:
Chiletricha
,
Eratomyia
,
Insulatricha
,
Rhynchoheterotricha
, and
Kenyatricha
.
Anisotricha
and
Nepaletricha
should be placed here tentatively, although this is pending a reexamination of their species.