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