Neotropical Allocladius Kieffer, 1913 and Pseudosmittia Edwards, 1932 (Diptera: Chironomidae) 2472
Author
Andersen, Trond
Author
Saether, Ole A.
Author
Mendes, Humberto F.
text
Zootaxa
2010
2010-05-14
2472
1
1
77
https://biotaxa.org/Zootaxa/article/view/zootaxa.2472.1.1
journal article
10.11646/zootaxa.2472.1.1
11755334
6507307
Pseudosmittia
Edwards
Pseudosmittia
Goetghebuer, 1932: 126
(as subgenus of
Smittia
Holmgren, 1869: 47
),
nomen nudum.
A
type
species was not designated in the original work contrary to Article 13b of the Zoological Code.
Pseudosmittia
Edwards, 1932: 141
,
pro parte
. Edwards described the genus by inference (ICZN Article 13a (ii) and designated an eligible
type
species. Following ICZN Article 50a,
Pseudosmittia
must be credited to
Edwards (1932)
. See
Spies and Reiss (1996)
and
Spies and Saether (2004)
.
Pseudosmittia
Edwards
; Ferrington and Saether (in manuscript).
Orthosmittia
Goetghebuer, 1943:
110
in
Goetghebuer (1940
–50) (as subgenus of
Smittia
Holmgren, 1869: 47
).
Orthosmittia
has mistakenly been synonymized with
Smittia
both by
Freeman (1956: 346)
and
Saether (1981: 25)
.
Syn. n.
Ancylocladius
Sublette & Wirth, 1972: 5
.
Syn. n.
Type
species.
Spaniotoma (Smittia) angusta
Edwards, 1929
, by subsequent designation of
Edwards (1932: 141)
.
Diagnostic characters.
The imagines are separable from other
Orthocladiinae
with bare eyes, wings and squama, by having 2 short, biserial acrostichals on mid-scutum without additional tubercle, hump or microtrichial tuft; non-extended, non-protruding eyes; costa not to moderately long extended; VR high to extremely high; Cu
1
sinuate, curved or straight; wing often with additional vein caused by bifurcation of postcubitus. Male anal point absent or placed forward on tergite IX with microtrichia often reaching to apex; single, plate- or spine-like, median virga; male gonostylus not double but occasionally furcate. Female genitalia with gonocoxite IX long and low with characteristic sclerotized margin against tergite IX, small dorsomedian lobe, large ventrolateral lobe, and spermathecal duct with loop.
The pupae can be separated from other orthoclads by lacking a thoracic horn and a precorneal tubercle, having a reduced or smoothly rounded anal lobe without or with fine hair-like setae; three precorneals and two median antepronotals all fine and hair-like, and usually conjunctives both dorsally and ventrally armed with spinules.
The larvae are separable from all other orthoclads except
Camptocladius
van der Wulp
,
Allocladius
and a new genus (Ferrington & Saether in manuscript) by having broad, bifid S I and S II, reduced antenna and no procerci. They differ from
Camptocladius
by having premandible with brush, and reduced to relatively well developed posterior parapods, usually with claws. From
Allocladius
and the new genus they differ by having the antennal blade extending beyond flagellum about 2–4 times as long as width of basal segment and posterior parapods with 0–6 claws, except in
P. mathildae
Albu
with 8 claws.