Revision and cladistic analysis of the Neotropical Genus Thecomyia Perty (Diptera: Sciomyzidae)
Author
Marinoni, Luciane
Author
Steyskal, George C.
Author
Knutson, Lloyd
text
Zootaxa
2003
191
1
36
journal article
10.5281/zenodo.156857
bc8fbb8b-8101-4fe5-9ffd-0b5aa5db803c
11755326
156857
3.
Thecomyia limbata
(
Wiedemann, 1819
)
(
Figs. 8
,
20
, 32, 41, 44)
Tetanocera limbata
Wiedemann, 1819
: 54
[typelocality: "
Brasil
"]; 1830: 584 [citation].
Thecomyia limbata
.
Frey, 1918
: 24
[generic combination].
Hendel, 1932
: 98
[suggested synonym with
Thecomyia longicornis
].
Abercrombie and Berg, 1975
: 355
368 [biology and description of immature stages].
Knutson et al., 1976
: 13
[Neotropical catalog].
Description. Adult.
Upper orbital seta absent. Frontoorbital spot triangular, width approximately 1/4 of frontal width. Rostrum
0.660.75 in
males and
0.950.97 in
females as high as eye. White microtomentose infraocular marking extending well over 1/2 way to oral margin in female, in male nearly all the way. Mid femur with short anteromedial seta. Mid and hind femora usually wholly yellowish, occasionally blackish at apex. Mesonotum with complete medial yellow stripe becoming wider posteriorly as it extends onto scutellum. Ejaculatory apodeme very broad at apex, anterior margin almost straight, posterior margin slightly concave (
Fig. 8
). Phallapodeme narrow and slightly curved at articulation with basiphallus, without subapical process. Anterior basiphallic process rounded, posterior basiphallic process barely covering base of distiphallus. Epiphallus short, not extending to base of distiphallus. Distiphallus very long, curved apically with a pair of long, narrow, apically acute asymmetrical processes almost as long as acrophallus. Hypandrium in lateral view, with dorsal margin almost straight; anteroventral margin wide, straight (
Fig. 20
). Anteroventral hypandrial plates in frontal view very narrow. Membranous projections of margins of anteroventral hypandrial plates well developed, extending to lateral margins of hypandrium covered with minute hairs (
Fig. 20
). Posterior and anterior surstyli distinct; posterior one large, clawlike; anterior one rounded (
Fig. 8
). Female sternites 6, 7 and 8 almost fused, longer than wide; presence of sternite 6 indicated by a line of hairs; anterior margin of sternite 6 slightly sinuate; posterior part narrower. Spermathecal duct with sclerotized region joining spermatheca short; apical, digitiform projection thick at base and short (Fig. 32).
Type
specimens
. Described from three males in the Humboldt University Museum, Berlin. George Steyskal examined the male
holotype
on
16 Apr 1968
, and according to his notes, the specimen is labeled: 1. Green label, “
Brasil
v. Olfers”, “2575”, 2. Red label, “
Typus
”, 3. Green label, “limbatus m.”, “Tetan.
limbata Wied.
”, “Thecom.
Longicornis Perty
”. Steyskal further noted, “wing,
6.53 mm
. long = #
1 in
my key. F2 (only middle leg present) without medial bri”. Steyskal did not indicate whether or not he examined the male genitalia.
Other specimens examined
.
PANAMA
. Guabito, Boca del Toro,
23 Feb 1917
, C. B. Williams col.,
1 m
.
and
1 f.
(
BMNH
).
VENEZUELA
. CARABOBO: Valencia,
16 Mar 1971
, C. O. Berg col.,
1 m
.
(
USNM
).
BRAZIL
.
PARÁ
: Belém, Mocambo,
30 Jun 1965
, H.S. Lopes col.,
5 m
.
and
2 f.
(
MNRJ
); same locality,
1. Jul. 1965
, H. S. Lopes & P. W. Miranda cols,
2 f.
(
MNRJ
), same locality, same date, H.S. Lopes col.
1 m
.
(
MNRJ
); Utinga,
4 Set 1938
, Damasceno col.,
1 m
.
(
MNRJ
); RIO GRANDE DO
NORTE
: Macahyba,
Jun 1939
, D.C. Alves col.,
5 m
.
and
1 f.
(
MZSP
). PARAÍBA: Areia,
Jul 1955
, Pe. Pereira col.,
1 m
.
(
MZSP
). DISTRITO FEDERAL: Núcleo Bandeirante,
Jan 1975
, A. Bredt col.,
1 m
.
(
USNM
); same locality, Guaratiba,
Jul 1956
, J. H. Guimarães col.,
1 f.
(
MZSP
).
MATO
GROSSO: Maracajú, Serviço de Febre Amarela,
May 1937
, no col.,
1 f.
(
USNM
); same locality,
Jul 1937
, no col.,
1 m
.
(
USNM
); RIO
DE
JANEIRO: Rio de Janeiro,
Jan
,
Feb
,
Nov
,
Dec 1937
Jan 1938
, R. C. Shannon col.,
1 m
.
and
1 f.
(
MZSP
); same locality,
1 Nov 1937
, H. Souza Lopes col.,
1 f.
(
USNM
); same locality, Jardim Botânico,
1012 Apr 1967
, C. O. Berg & H. SouzaLopes cols.,
18 m
.
and
13 f.
(CU); same locality, Jardim Botânico, same date, C. O. Berg & J. Abercrombie cols.,
18 m
.
(1 reared – “ it means reared in the laboratory from eggs laid by fieldcollected females; most are pinned with puparia) and
1 f.
(reared) (CU); same locality, Jardim Botânico,
13 Jun 1967
, C. O. Berg & H. SouzaLopes cols.,
9 m
.
(2 reared) and
1 f.
(reared) (CU); same locality, no date, no col.,
2 m
.
(reared) and
7 f.
(reared) (CU); same locality, Instituto Oswaldo Cruz,
6 Jul 1967
, C. O. Berg & H. Souza Lopes cols.,
4 m
.
(reared) and
2 f.
(reared) (CU); same locality, Gávea,
5 May 1937
, H. SouzaLopes col.,
1 m
.
(
MZSP
); same locality,
Oct 1937
, Serviço de Febre Amarela, M.E.S, Bras.
1 m
.
(
MZSP
); same locality, Manguinhos,
Apr. 1934
, H. S. Lopes,
1 m
.
(
MNRJ
); Araruama,
Jun 1948
, P. E. Vanzolini col.,
1 m
.
(
MZSP
).
SÃO
PAULO
:
São Vicente
, Parque Bitaru,
29 May 1967
, Berg & Abercrombie cols.,
14 m
(2 reared) and 9 f (5 reared) (CU); Juquiá, J. Lane col.,
1 m
.
and
1 f.
(
MZSP
); same locality,
May 1947
, E. Rabello col.,
1 m
.
(
MZSP
); Itanhaém,
Dec 1944
, J. Lane col.,
2 m
.
and
1 f.
(
MZSP
); Araçatuba, Rio Jacarecatinga,
Oct 1961
, Lane & Rabello cols.,
2 m
.
and
1 f.
(
MZSP
); same locality, Córrego Azul,
Mar 1947
, M. P. Barreto col.,
9 m
.
and
6 f.
(
MZSP
); Ribeirão Preto, Rio Tamanduá,
28 Oct 1954
, M. P. Barreto col.,
1 m
.
and
1 f.
(
MZSP
); Rio Claro,
14 Jan 1977
, L. Knutson col.,
1 m
.
and
1 f.
(
USNM
); same locality, Horto Florestal,
Aug 1964
, N. Papavero col.,
2 m
.
(
MZSP
); Vila Enia, Bosque Pinheiro,
Dec 1935
, Barbiellini col.
1 f.
(
MZSP
); Onda Verde, Fazenda São João,
Jan 1946
, F. Lane col.,
2 f.
(
MZSP
). PARANÁ: Praia de Leste,
17 May 1967
, Berg & Abercrombie cols.,
4 m
.
and
2 f.
(CU); Paranaguá,
Oct 1939
, G. Silva col.,
1 m
.
(
MZSP
); Morretes, Sapitanduva,
7 Nov 1986
, L. Marinoni, C. Carvalho & L. Knutson cols.,
1 m
.
and
2 f.
(
DZUP
); same locality,
4. Jun. 1991
, L. Marinoni col.,
1 m
.
(
DZUP
); same locality, same date, S. M. S. Silva col.,
1 f.
(
DZUP
).
SANTA
CATARINA: Nova Teutônia,
Dec 1944
, F. Plaumann col.,
1 m
.
(
CNC
); same locality,
21 Mar 1947
, same col.,
1 m
.
and
1 f.
(
CNC
); same locality,
Apr 1948
, same col.,
1 m
.
(
USNM
); same locality,
May 1950
, same col.,
1 m
.
(
CNC
); same locality,
23 Nov 1959
, same col.,
1 f.
(
CNC
); same locality,
25 Nov 1959
, same col.,
1 f.
(
CNC
); same locality,
17 Dec 1959
, same col.,
4 m
.
and
2 f.
(
CNC
); same locality,
18 Dec 1959
, same col.,
2 m
.
and
1 f.
(
CNC
); same locality,
19 Dec 1959
, same col.,
2 m
.
and
2 f.
(
CNC
); same locality,
21 Dec 1959
, same col.,
1 f.
(
CNC
); same locality,
22 Dec 1959
,
1 m.
and
1 f.
(
CNC
); same locality,
22 Jan 1960
, same col.,
1 m
.
(
CNC
); same locality,
29 Mar 1960
, same col.,
1 m
.
and
2 f.
(
CNC
); same locality,
Mar 1963,
1
f. (
CNC
); same locality (
300 500 m
),
Oct 1977
, same col.,
1 m
.
and
1 f.
(
USNM
); same locality,
Oct 1971
, same col.,
16 m
.
and
3 f.
(
DZUP
).
ECUADOR
. Napo, Lago Agrio,
14 Apr 1978
, J. Anderson col. (col. small roadside pond),
1 m
.
(
USNM
).
PERU
. Loreto: Pucallpa,
29 Dec 1950
, J. Schunke col.,
1 f.
(
USNM
); same locality, (
200 m
),
2030 Jun 1965
, same col.,
1 m
.
and
1 f.
(
USNM
); same locality,
1120 Nov 1964
, same col.,
11 m
.
and
2 f.
(
USNM
); same locality (
500 m
),
714 Jul 1965
, same col.,
3 m
.
(
USNM
); same locality, Boqueron (
500 m
),
714 Jul 1965
, same col.,
4 m
.
(
USNM
).
PARAGUAY
. Villa Rica,
Dec 1936
, F. Schade col.,
2 m
.
and
2 f.
(A. L. Melander Collection) (
USNM
); same locality,
May 1937
, same col.,
2 m
.
(
USNM
); same locality,
Nov 1937
, same col.,
1 m
.
(
USNM
); same locality,
Dec 1937
, same col.,
1 f.
(
USNM
); same locality,
Oct 1939
, same col.,
2 f.
(
USNM
); same locality,
Dec 1939
, same col.,
2 m
.
(
USNM
); same locality,
Jan 1940
, same col.,
1 m
.
(
USNM
); same locality,
Feb 1940
, same col.,
14 m
.
and
3 f.
(
USNM
); same locality,
16 Mar 1940
, same col.,
1 m
.
(
USNM
).
Biology
.
Abercrombie and Berg (1975)
reared this species through its complete life cycle, starting with larvae, puparia, and adults that were collected in Rio de Janeiro and
São Vicente
,
Brazil
. They described all immature stages. The larvae are rather typical predators of freshwater, nonoperculate snails.