Chrysonotus dichrous Schiner, 1868 : 62
Schiner, 1868 : 62
Taxonomic revision of the Neotropical genus Himantigera James, 1982 (Diptera: Stratiomyidae: Sarginae), including the description of two new species and a key to the known species
Fachin, Diego Aguilar
Hauser, Martin
Zootaxa
2018
2018-12-14
4531
4
451
498
(Schiner, 1868)
Fachin & Hauser
2018
Schiner
1868
[151,542,1555,1581]
Insecta
Stratiomyidae
Sargus
GBIF
Animalia
Diptera
35
486
Arthropoda
species
dichrous
comb. nov.
( Fig. 132, A–E; A–C, holotype, NMW)
Chrysonotus dichrous Schiner, 1868: 62(original description). Type locality: Venezuela(see comments below). Holotype ♀[NMW].
Diagnosis.This species can be easily distinguished from the other Neotropical Sargusby an entirely metallic blue to purple abdomen ( Fig. 132) that strongly contrasts to the color of the thorax, which is mostly orange in both sexes except for an oval-shaped medial dark brown macula on the scutum, a dark brown ventral mark on the katepisternum, a medially dark brown laterotergite and a dark brown mediotergite with purple reflections in males ( Fig. 132, D–E). The fore and mid legs are mostly orange and the hind leg is often entirely dark brown, but it can be almost entirely orange on its femur and tibia. Male holoptic and female dichoptic, upper frons dark brown to black with metallic blue reflections, with a well-marked white callus frontally subdivided into two spots by a dark brown line in both sexes. Male often smaller and slender than females.
Material examined. Type material: HOLOTYPE( Fig 132, A–C), ♀labeled: “ Lindig/ 1864 / Venezuela[printed on white paper]”; “ dichrous[handwritten on white paper] / Alte Sammlung[printed on white paper]” (NMW). Additional material: 4 ♀, COLOMBIA, Boyacá, SFF Iguaque, 5°70’N 73°46’W, 11–17.iii.2000, P. Reina, MT [ malaise trap] #8, CAP- 8, 2795 m( 3 ♀ LACM; 1 ♀ USNM); 3 ♀, 01–19.iv.2000, MT#9, CAP- 31, 2980 m( LACM); 2 ♀, 17.viii–01.ix.2000, MT, CAP- 518, 2850 m( LACM). 3 ♀, Arcabuco, SFF Iguaque, 2855 m, Bosque Rastrojo Cañon de Mamarramos, Malaise4, 28.ii–16.iii.2000, P. Reina( LACM); 2 ♀, 3450 m, 16.iii–01.iv.2000, Malaise1 ( LACM). 3 ♀, SFF Iguaque, Cabaña, Carrizal, 5°42’N 73°45’W, 2850 m, 01–23.ix.2000, P. Reina, MT, CAP-614 ( LACM). 4 ♀, SFF Iguaque, Cabaña, Carrizal, 5°25’N 73°27’W, 2850 m, 07–24.ii.2001, M. 1273, P. Reina( LACM). 2 ♀, SFF Iguaque, Cabaña Mamarramos, 5°42’N 73°45’W, 2855 m, 23.v–08.vi.2000, P. Reina, Malaise trap, CAP-149 ( LACM); 3 ♀, 17.viii–1.ix.2000, P. Reina, CAP- 519, 2855 m( LACM). 1 ♂, 9 ♀, SFF Iguaque, Cabaña, Mamarramos, 5°25’N 73°27’W, 2855 m, 23.ix–11.x.2000, P. Reina, M.752 ( LACM); 4 ♀, 04– 21.xii.2000, CAP1080 ( LACM); 1 ♂, 7 ♀, 21.xii.2000– 07.i.2001, M.1072 ( LACM); 1 ♀, 07–21.i.2001, M.1252 ( LACM); 1 ♀, 21.i.–07.ii2001, M.1248 ( LACM); 3 ♀, 13.xi–04.xii.2001, MT, CAP-1063 ( LACM). 1 ♀, SFF Iguaque, La Planada, 5°25’N 73°27’W, 2850 m, 23.v–08.vi.2000, M.152, P. Reinaleg. ( LACM); 1 ♀, 21.x.2000– 07.i.2001, P. Reina, MT, M.1070 ( LACM); 2 ♀, 21.i–07.ii.2001( LACM). 1 ♀, SFF Iguaque, Qda Carrizal, 5°69’N 73°45’W, 02–19.iv. 2000, 3350 m, P. Reina, Malaise trap, CAP-26 ( LACM); 1 ♀, 25.vi–13.vii.2000, CAP-247 ( LACM); 1 ♀, 17.viii–01.ix.2000, CAP-520 ( USNM). 5 ♀, SFF Iguaque, Qda Carrizal, 5°42’N 73°45’W, 04– 21.xii. 2000, 3350 m, P. Reina, Malaise trap, CAP-1078 ( LACM). 1 ♀, SFF Iguaque, Qda Carrizal, 5°25’N 73°27’W, 21.xii.2000– 07.i. 2001, 3350 m, P. Reina, M.1071 ( LACM); 9 ♀, SFF Iguaque, Qda Los Francos, 5°42’N 73°27’W, 2860 m, MT, 07–24.ii.2001, P. Reina, CAP-1270 ( LACM). 1 ♀, Cauca, PNN Isla Gorgona, 2°97’N 78°18’W, 25–28.ii.2000, B. Brown, G. Kung( LACM). 1 ♀, Cundinamarca, PNN Chingaza, Bosque Palacio, 4°52’N73°75’W 2930 m, 17.i–04.ii.2001, L. Cifuentes, Malaise trap, CAP-1258 ( LACM). FIGURE 129. Himantigera superba, female, holotype [BMNH]. A. Habitus, dorsal. B. Habitus, lateral. C. Head, frontal view. D–E. Type specimen plus labels. F. Labels. FIGURE 130.Geographic distribution of Himantigeraspecies. Squares represent holotypes, and circles paratypes and additional material. Geographic distribution. Colombia( Boyacá, Cauca, Cundinamarca) and Venezuela.
Comments.This species clearly belongs to the genus Sargus. The color pattern of S. dichrous( Schiner, 1868) comb. nov.seems to be unique among Neotropical Sargus,making it readily identifiable. Besides the records included here, there are additional females from Colombiain LACM. The typelocality of this species as indicated in the original description is “ Colombia”, but the label on the type( Fig. 132, A–C) reads “ Venezuela”. It was stated as being a male in Schiner (1868)and in Woodley (2001), but it is a female.
2117740476
[383,566,1661,1683]
NMW
Venezuela
Venezuela
35
486
1
1
holotype
2117738906
[633,792,1376,1401]
NMW
Venezuela
Lindig
Alte Sammlung
39
490
1
1
holotype
2117744362
2000-03-11
2000-03-17
2000-03-11
LACM, USNM
P. Reina
Colombia
8
Iguaque
-73.76667
39
490
8
8
Boyaca
2117742237
2000-04-01
2000-04-19
2000-04-01
LACM
Colombia
31
39
490
3
3
Boyaca
2117745890
[265,908,1556,1581]
2000-08-17
2000-09-01
2000-08-17
LACM
Colombia
518
39
490
2
2
Boyaca
2117737632
2000-02-28
2000-03-16
2000-02-28
LACM
P. Reina
Colombia
Arcabuco
2855
Bosque Rastrojo Canon de Mamarramos
Iguaque
39
490
3
3
Boyaca
2117743918
2000-03-16
2000-04-01
2000-03-16
LACM
Malaise
Colombia
3450
39
490
2
2
Boyaca
2117742191
2000-09-01
2000-09-23
2000-09-01
LACM
P. Reina
Colombia
Iguaque
2850
5.7
Carrizal
1305
-73.75
Cabana
39
490
3
3
Boyaca
2117733915
2001-02-07
2001-02-24
2001-02-07
LACM
P. Reina
Colombia
Iguaque
2850
5.4166665
Carrizal
1305
-73.45
Cabana
39
490
4
4
Boyaca
2117742944
2000-05-23
2000-06-08
2000-05-23
LACM
P. Reina
Colombia
2855
5.7
Cabana Mamarramos
1305
-73.75
Iguaque
39
490
2
2
Boyaca
2117741154
[544,1251,1736,1761]
2000-08-17
2000-09-01
2000-08-17
LACM
Reina
Colombia
519
39
490
3
3
Boyaca
2117746186
2000-09-23
2000-10-11
2000-09-23
LACM
P. Reina
Colombia
Iguaque
2855
5.4166665
Mamarramos
1305
-73.45
Cabana
39
490
10
9
1
Boyaca
2117744135
2000-12-04
2000-12-21
2000-12-04
LACM
Colombia
39
490
4
4
Boyaca
2117743141
[530,1112,1808,1833]
2000-12-21
2001-01-07
2000-12-21
LACM
Colombia
39
490
8
7
1
Boyaca
2117744123
2001-01-07
2001-01-21
2001-01-07
LACM
Colombia
39
490
1
1
Boyaca
2117746176
[269,724,1844,1869]
2001-01-21
2001-02-07
2001-01-21
LACM
Colombia
39
490
1
1
Boyaca
2117743676
[739,1311,1844,1869]
2001-11-13
2001-12-04
2001-11-13
LACM
Colombia
39
490
3
3
Boyaca
2117744144
2000-05-23
2000-06-08
2000-05-23
LACM
P. Reina
Colombia
2850
5.4166665
La Planada
1305
-73.45
Iguaque
39
490
1
1
Boyaca
2117742812
2000-10-21
2001-01-07
2000-10-21
LACM
Reina
Colombia
39
490
1
1
Boyaca
2117745775
[638,973,1916,1941]
2001-01-21
2001-02-07
2001-01-21
LACM
Colombia
39
490
2
2
Boyaca
2117737615
2000-04-02
2000-04-19
2000-04-02
LACM
P. Reina
Colombia
Qda Carrizal
-73.75
Iguaque
39
490
1
1
Boyaca
2117745783
2000-06-25
2000-07-13
2000-06-25
LACM
Colombia
39
490
1
1
Boyaca
2117743834
[269,775,1988,2013]
2000-08-17
2000-09-01
2000-08-17
USNM
Colombia
39
490
1
1
Boyaca
2117746385
2000-12-04
2000-12-21
2000-12-04
LACM
P. Reina
Colombia
40
491
5.7
Qda Carrizal
1305
-73.75
Iguaque
39
490
5
5
Boyaca
2117742805
2000-12-21
2001-01-07
2000-12-21
LACM
P. Reina
Colombia
5.4166665
Qda Carrizal
1305
-73.45
Iguaque
40
491
1
1
Boyaca
2117738441
2001-02-07
2001-02-24
2001-02-07
LACM
P. Reina
Colombia
2860
5.7
Qda Los Francos
1305
-73.45
Iguaque
40
491
9
9
Boyaca
2117739199
2000-02-25
2000-02-28
2000-02-25
LACM
B. Brown & G. Kung
Colombia
Isla Gorgona
-78.3
40
491
1
1
Cauca
2117746215
2001-01-17
2001-02-04
2001-01-17
LACM
L. Cifuentes
Colombia
2930
4.866667
Bosque Palacio
Chingaza
40
491
1
1
Cundinamarca
2117743493
[501,1030,1437,1462]
Colombia
Boyaca
41
492
1
Boyaca