Urban Scatopsidae (Diptera) of Los Angeles, California, United States
Amorim, Dalton de Souza
Brown, Brian V.
Insect Systematics and Diversity
2020
2020-01-31
4
1
1
1
41
8LWN
(Cook)
Cook
[146,429,1600,1623]
Insecta
Scatopsidae
Abrhexosa
Animalia
Diptera
35
36
Arthropoda
species
grossa
( Figs. 11, 12, 25, 26, and 75–81) Abrhexosa grossa(Cook), 1956a: 6, figs. 1B ( ♂terminalia), 2B ( ♂segment 7), 3D ( ♀terminalia) ( Rhexoza). Type ♂, UCC. Ref.– Cook 1975(redescription), Figs. 7( ♂segment 7), 15 ( ♂terminalia), 22 ( ♀terminalia). Amorim 2007(new combination).
Diagnosis.Male tergite 7 with a medial notch on posterior margin, tergite 9 typically flat and rounded distally.
Material Examined. 1 ♀, United States, California, Los Angeles Co., Los Angeles, Los Feliz, 34.116°N 118.279°W, BioSCAN site 6, Malaise trap, 29 March–14 April 2014, 199 m, Coll. Jeff, Aaronand Jacob Koch, BioSCAN sample 15939 (on slide) ( LACM); 1 ♀, same data, but 1–5 January 2014, BioSCAN sample 15568 (on slide) ( LACM); 1 ♀, same data, but 4–10 May 2014, BioSCAN sample 16104 ( MZUSP); 1 ♀, United States, California, Los Angeles Co., Glendale, 34.149°N 118.218°W, BioSCAN site 13, Malaise trap, 245.4 m, Coll. Karen Hoffman, BioSCAN sample 16211 ( LACM); 1 ♂, United States, California, Los Angeles Co., Los Angeles, Elysian Park, 34.078°N 118.234°W, BioSCAN site 14, Malaise trap, 149 m, Coll. Ericand Victoria Harding, BioSCAN sample 16352 ( LACM); 1 ♀, same data, but BioSCAN sample 16347 ( LACM); 1 ♂, same data, but 3–10 May 2014, BioSCAN sample 15992 ( MZUSP); 1 ♀, United States, California, Los Angeles Co., Los Angeles, Echo Park, 34.074°N 118.264°W, BioSCAN site 22, 2–9 December 2014, Malaise trap, 133.5 m, Coll. Erin Johnson, BioSCAN sample 16824 ( LACM); 1 ♀, United States, California, Los Angeles Co., Los Angeles, Highland Park, 34.123°N 118.193°W, BioSCAN site 29, Malaise trap, 28 December 2013– 4 January 2014, 205.6 m, Coll. Natalie Brejcha, BioSCAN sample 15489 ( LACM); 1 ♀, United States, California, Los Angeles Co., Los Angeles, 34.103°N– 118.216°W, BioSCAN site 31, Malaise trap, 74 m, Coll. Julian Donahue, BioSCAN sample 16206 ( LACM); 1 ♀, same data, but BioSCAN sample 16202 ( LACM); 1 ♀, same data, but 3–10 May 2014, BioSCAN sample 16009 ( LACM); 1 ♀, United States, California, San Bernardino Co., Grand Terrace, 34.024°N 117.315°W, BioSCAN site 39, 7–14 April 2016, Malaise trap, 322 m, Coll. Dave Goodward, BioSCAN sample 18221 (on slide) ( LACM); 1 ♀, United States, California, San Bernardino Co., Chino Hills, 34.003°N 117.734°W, BioSCAN site 45, Malaise trap, 1–8 March 2016, 225 m, Coll. Joe Williams, BioSCAN sample 18166 (on slide) ( LACM).
Distribution. Canada( British Columbia), United States( Oregon, California).
Remarks.The typelocality of Abrhexoza grossais Del Puerto Canyon, in central California, and the species is also known from Oregonand British Columbia. In the original description, Cook (1956a)mentioned that the typeis at the ‘University of CaliforniaCollection’, which probably means the University of Californiaat Davis. In our samples, this species appeared in the BioSCAN sites 6, 13, 14, 22, 29, 31, 39, and 45. The sites of Phase I (1–32) are all at the northern range of the BioSCAN collecting sites, which may have influence of the fauna at the mountains of the northern range of the city. Altitude of BioSCAN collecting sites vary from 9 mto 245 m( Brown and Hartop 2016) ( Table 1) and the sites with A. grossacatches are all above 130 (except for site 31, which is at 74 m). Two Phase II sites with specimens of A. grossaare at the eastern most range of the BioSCAN collecting sites. Some specialized phorid species, as Anevrina variabilisBorgmeier, a scavenger in rodent burrows ( Brown and Hartop 2016), were found at the northernmost Phase I BioSCAN sites close to the surrounding mountain natural areas, suggesting that some elements of the fauna have a restricted distribution in the area of Los Angeles.
2618789702
2014-03-29
2014-04-14
2014-03-29
LACM
Coll. Jeff & Aaron & Jacob Koch
35
36
1
2618789429
2014-01-01
2014-01-05
2014-01-01
LACM
Coll. Jeff & Aaron & Jacob Koch
35
36
1
1
2618789551
2014-05-04
2014-05-10
2014-05-04
MZUSP
Coll. Jeff & Aaron & Jacob Koch
35
36
1
1
2618789526
LACM
Coll. Karen Hoffman
United States of America
Los Angeles Co.
245
34.149
Glendale
72
-118.218
35
36
1
1
California
2618789580
LACM
Coll. Eric & Victoria Harding
United States of America
Los Angeles Co.
149
34.078
Elysian Park
72
-118.234
Los Angeles
35
36
1
1
California
2618789392
LACM
Coll. Eric & Victoria Harding
United States of America
Los Angeles Co.
149
34.078
Elysian Park
72
-118.234
Los Angeles
35
36
1
1
California
2618789730
2014-05-03
2014-05-10
2014-05-03
MZUSP
Coll. Eric & Victoria Harding
United States of America
Los Angeles Co.
149
34.078
Elysian Park
72
-118.234
Los Angeles
35
36
1
1
California
2618789646
2014-12-02
2014-12-09
2014-12-02
LACM
Coll. Erin Johnson
United States of America
Los Angeles Co.
134
34.074
Echo Park
72
-118.264
Los Angeles
35
36
1
1
California
2618789350
2013-12-28
LACM
Coll. Natalie Brejcha
United States of America
Los Angeles Co.
2014206
34.123
Highland Park
72
-118.193
Los Angeles
35
36
1
1
California
2618789599
LACM
Coll. Julian Donahue
United States of America
Los Angeles Co.
74
36
37
34.103
Los Angeles
72
-118.216
35
36
1
1
California
2618789615
LACM
Coll. Julian Donahue
United States of America
Los Angeles Co.
74
34.103
Los Angeles
72
-118.216
36
37
1
1
California
2618789766
2014-05-03
2014-05-10
2014-05-03
LACM
Coll. Julian Donahue
United States of America
Los Angeles Co.
74
34.103
Los Angeles
72
-118.216
36
37
1
1
California
2618789731
2016-04-07
2016-04-14
2016-04-07
LACM
Coll. Dave Goodward
United States of America
San Bernardino Co.
322
34.024
Grand Terrace
72
-117.315
36
37
1
1
California
2618789704
2016-03-01
2016-03-08
2016-03-01
LACM
Coll. Joe Williams
United States of America
San Bernardino Co.
34.003
Chino Hills
72
-117.734
36
37
1
1
California