Swammerdamella marginata Cook

Amorim, Dalton de Souza & Brown, Brian V., 2020, Urban Scatopsidae (Diptera) of Los Angeles, California, United States, Insect Systematics and Diversity 4 (1), No. 1, pp. 1-41: 21-24

publication ID

http://doi.org/ 10.1093/isd/ixaa001

publication LSID

lsid:zoobank.org:pub:BCD57714-6B3C-4E4C-AB32-3686BEB2DA74

DOI

http://doi.org/10.5281/zenodo.3847002

persistent identifier

http://treatment.plazi.org/id/EE454154-FFF6-BA5F-3859-F8DCFAC3FEFF

treatment provided by

Felipe

scientific name

Swammerdamella marginata Cook
status

 

Swammerdamella marginata Cook  

( Figs. 5, 6 View Figs , 21, 22 View Figs , and 57–61)

Swammerdamella marginata Cook, 1956b: 24   , figs. 1D (male terminalia), 2D (male segment 7), 3G (wing), 4E (male segment 6), 5H

(female terminalia). Type locality: United States, New Mexico, Las Vegas. Distr.– United States (New Mexico), Mexico (Guadalajara).

Ref.– Cook, 1967: 4 (Nearctic catalog). Holotype ♂, NMNH.

Diagnosis. Male tergite 6 large, produced posteriorly into a broad, curved lobe, sternite 6 ornamented, more shallowly incised posteriorly.

Material Examined. 4 ♂♂, 2 ♀♀, United States, California, Los Angeles Co., Los Angeles, Exposition Park , 34.018°N 118.288°W, BioSCAN site 1, 28 March–4 April 2014, Malaise trap, 54 m, Coll. Lisa Gonzalez and Dean Pentcheff, BioSCAN sample 15775 GoogleMaps   ; 1 ♂, same data, but 1–8 April 2016, BioSCAN sample 18198 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16170 GoogleMaps   ; 3 ♀♀, same data, but BioSCAN sample 16029 GoogleMaps   ; 1 ♀, same data, but 3–10 June 2016, BioSCAN sample 18273 GoogleMaps   ; 3 ♂♂, 8 ♀♀, same data, but 2–9 May 2014, BioSCAN sample 15915 (1♀ on slide) GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 18373 GoogleMaps   ; 8 ♂♂, 1 ♀, United States, California, Los Angeles Co., Los Angeles, University Park , 34.034°N 118.281°W, BioSCAN site 3, 2–9 April 2014, Malaise trap, 63 m, Coll. Peggy Hentschke, BioSCAN sample 15897 GoogleMaps   ; 1 ♀, same data, but 3–10 December 2014, BioSCAN sample 16969 GoogleMaps   ; 1 ♂, 1 ♀, same data, but BioSCAN sample 16251 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16072 GoogleMaps   ; 1 ♀, same data, but 26 February–5 March 2014, BioSCAN sample 15721 GoogleMaps   ; 2 ♂♂, 2 ♀♀, same data, but 30 April–7 May 2014, BioSCAN sample 16068 GoogleMaps   ; 1 ♀, same data, but 29 October–5 November 2014, BioSCAN sample 16774 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16603 GoogleMaps   ; 1 ♂, United States, California, Los Angeles Co., Los Angeles, Los Feliz , 34.118°N 118.284°W, BioSCAN site 4, 29 March–4 April 2014, Malaise trap, 220 m, Coll. Mark and Jane Pisano, BioSCAN sample 15950 GoogleMaps   ; 1 ♂, 3 ♀♀, same data, but 1–15 March 2014, BioSCAN sample 15757 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16808 GoogleMaps   ; 4 ♀♀, same data, but BioSCAN sample 16632 GoogleMaps   ; 10 ♂♂, 40 ♀♀, United States, California, Los Angeles Co., Los Angeles, Silverlake , 34.093°N 118.274°W, BioSCAN site 5, 29 March–5 April 2014, Malaise trap, 166.1 m, Coll. Walter Renwick, BioSCAN sample 15916 GoogleMaps   ; 2 ♂♂, 2 ♀♀, same data, but 1–8 February 2014, BioSCAN sample 15589 GoogleMaps   ; 1 ♂, 31 ♀, same data, but BioSCAN sample 16268 GoogleMaps   ; 2 ♂♂, 42 ♀♀, same data, but BioSCAN sample 16113 GoogleMaps   ; 2 ♂♂, 33 ♀♀, same data, but 1–8 March 2014, BioSCAN sample 15735 GoogleMaps   ; 2 ♂♂, 3 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 16109 GoogleMaps   ; 1 ♂, 66 ♀♀, same data, but 2–9 November 2013, BioSCAN sample 15318 GoogleMaps   ; 5 ♀♀, same data, but 28 September–5 October 2013, BioSCAN sample 15226 GoogleMaps   ; 4 ♂♂, United States, California, Los Angeles Co., Los Angeles, Los Feliz , 34.116°N 118.279°W, BioSCAN site 6, 1–8 February 2014, Malaise trap, 199 m, Coll. Jeff, Aaron and Jacob Koch, BioSCAN sample 15572 GoogleMaps   ; 3 ♀♀, same data, but BioSCAN sample 16107 GoogleMaps   ; 1 ♂, same data, but 1–9 March 2014, BioSCAN sample 15746 GoogleMaps   ; 2 ♀♀, same data, but 4–10 May 2014, BioSCAN sample 16104 GoogleMaps   ; 1 ♂, same data, but 15– 20 September 2013, BioSCAN sample 15207 GoogleMaps   ; 2 ♀♀, same data, but 29 March–14 April 2014, BioSCAN sample 15939 GoogleMaps   ; 1 ♂, United States, California, Los Angeles Co., Los Angeles, Silverlake , 34.102°N 118.257°W, BioSCAN site 7, 29 March–5 April 2014, Malaise trap, 158.9 m, Coll. Joe Hogg, BioSCAN sample 15834 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16193 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16189 GoogleMaps   ; 2 ♀♀, same data, but 1–8 March 2014, BioSCAN sample 15830 GoogleMaps   ; 1 ♀, same data, but 26 April–10 May 2014, BioSCAN sample 16003 GoogleMaps   ; 2 ♂♂, United States, California, Los Angeles Co., Los Angeles, Elysian Valley , 34.103°N 118.243°W, BioSCAN site 9, 29 March–5 April 2014, Malaise trap, 106.7 m, Coll. John Rodriguez, BioSCAN sample 15877 GoogleMaps   ; 1 ♂, same data, but 28 December 2013 – 4 January 2014, BioSCAN sample 15498 GoogleMaps   ; 10 ♂♂, 25 ♀♀, same data, but 1–8 March 2014, BioSCAN sample 15700 GoogleMaps   ; 2 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 16050 GoogleMaps   ; 1 ♀, same data, but 28 September–5 October 2013, BioSCAN sample 15274 GoogleMaps   ; 1 ♀, same data, but 2–9 November 2013, BioSCAN sample 15279 GoogleMaps   ; 1 ♀, United States, California, Los Angeles Co., Los Angeles, Leimert Park , 34.014°N 118.321°W, BioSCAN site 10, 28 September–5 October 2013, Malaise trap, 38 m, Coll. LaChristian Steptoe, BioSCAN sample 15220 GoogleMaps   ; 1 ♂, 13 ♀♀, United States, California, Los Angeles Co., Los Angeles, Korea Town , 34.072°N 118.291°W, BioSCAN site 11, 5–12 April 2014, Malaise trap, 85.6 m, Coll. Peter Ralph, BioSCAN sample 16056 GoogleMaps   ; 2 ♀♀, same data, but 2–9 March 2014, BioSCAN sample 15796 GoogleMaps   ; 2 ♂♂, 4 ♀♀, same data, but 4–13 May 2014, BioSCAN sample 16060 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16482 GoogleMaps   ; 5 ♂♂, United States, California, Los Angeles Co., Los Angeles, Mid-City , 34.047°N 118.334°W, BioSCAN site 12, 29 January–5 February 2014, Malaise trap, 52.6 m, Coll. Sharon Oxborough, BioSCAN sample 15560 GoogleMaps   ; 4 ♂♂, 1 ♀, same data, but 1–8 February 2014, BioSCAN sample 15600 GoogleMaps   ; 4 ♀♀, same data, but BioSCAN sample 16323 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16142 GoogleMaps   ; 4 ♂♂, 13 ♀♀, same data, but 1–8 March 2014, BioSCAN sample 15784 GoogleMaps   ; 3 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 15948 GoogleMaps   ; 3 ♀♀, same data, but 1–8 November 2014, BioSCAN sample 16838 GoogleMaps   ; 2 ♀♀, same data, but 14–21 September 2013, BioSCAN sample 15202 (on slide) GoogleMaps   ; 2 ♂♂, 16 ♀♀, same data, but 29 March–5 April 2014, BioSCAN sample 15943 GoogleMaps   ; 3 ♂♂, United States, California, Los Angeles Co., Glendale , 34.149°N 118.218°W, BioSCAN site 13, 28 March–5 April 2014, Malaise trap, 245.4 m, Coll. Karen Hoffman, BioSCAN sample 15851 GoogleMaps   ; 1 ♂, 1 ♀, same data, but BioSCAN sample 16381 GoogleMaps   ; 1 ♂, 1 ♀, same data, but BioSCAN sample 16211 GoogleMaps   ; 1 ♂, 4 ♀♀, same data, but BioSCAN sample 16207 GoogleMaps   ; 3 ♂♂, 1 ♀, same data, but 1–8 March 2014, BioSCAN sample 15680 GoogleMaps   ; 1 ♂, same data, but 3 May 2014 – 9 May 2014, BioSCAN sample 15998 GoogleMaps   ; 1 ♂, same data, but 29 November–6 December 2014, BioSCAN sample 16893 GoogleMaps   ; 3 ♂♂, United States, California, Los Angeles Co., Los Angeles, Gardena , 33.876°N 118.288°W, BioSCAN site 15, 29 March–5 April 2014, Malaise trap, 9 m, Coll. Betty Defibaugh, BioSCAN sample 15903 GoogleMaps   ; 12 ♀♀, United States, California, Los Angeles Co., Los Angeles, Hollywood , 34.095°N 118.334°W, BioSCAN site 16, 2–9 April 2014, Malaise trap, 100 m, Coll. Tony Hein, BioSCAN sample 15980 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16345 GoogleMaps   ; 1 ♂, same data, but 29 January–5 February 2014, BioSCAN sample 15611 GoogleMaps   ; 5 ♀♀, same data, but 1–18 January 2014, BioSCAN sample 15608 GoogleMaps   ; 7 ♀♀, same data, but BioSCAN sample 16341 GoogleMaps   ; 3 ♀♀, same data, but BioSCAN sample 16137 GoogleMaps   ; 13 ♀♀, same data, but 26 February–5 March 2014, BioSCAN sample 15801 GoogleMaps   ; 4 ♀♀, same data, but 30 April–7 May 2014, BioSCAN sample 15984 GoogleMaps   ; 12 ♀♀, same data, but 29 October–5 November 2014, BioSCAN sample 16690 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16686 GoogleMaps   ; 1 ♂, 1 ♀, same data, but BioSCAN sample 16519 GoogleMaps   ; 23 ♂♂, 9 ♀♀, United States, California, Los Angeles Co., Glendale , 34.159°N 118.247°W, BioSCAN site 17, 29 March–5 April 2014, Malaise trap, 190 m, Coll. Celeste Armstrong, BioSCAN sample 15911 GoogleMaps   ; 5 ♀♀, United States, California, Los Angeles Co., Glendale , 34.159°N 118.247°W, BioSCAN site 17, 1–8 February 2014, Malaise trap, 190 m, Coll. Celeste Armstrong, BioSCAN sample 15670 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16200 GoogleMaps   ; 2 ♀♀, same data, but BioSCAN sample 16196 GoogleMaps   ; 6 ♀♀, same data, but 1–8 March 2014, BioSCAN sample 15674 GoogleMaps   ; 5 ♂♂, 4 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 16013 GoogleMaps   ; 2 ♂♂, 10 ♀♀, United States, California, Los Angeles Co., Los Angeles, Larchmont , 34.077°N 118.32°W, BioSCAN site 18, 29 March–5 April 2014, Malaise trap, 76 m, Coll. K.T.Wiegman, BioSCAN sample 15968 GoogleMaps   ; 3 ♀♀, same data, but 2 December 2014 – 6 December 2014, BioSCAN sample 16847 GoogleMaps   ; 1 ♂, 10 ♀♀, same data, but 1 February 2014 – 10 February 2014, BioSCAN sample 15617 GoogleMaps   ; 4 ♀♀, same data, but BioSCAN sample 16305 GoogleMaps   ; 1 ♂, 1 ♀, same data, but BioSCAN sample 16127 GoogleMaps   ; 3 ♂♂, 45 ♀♀, same data, but 1–8 March 2014, BioSCAN sample 15778 GoogleMaps   ; 1 ♂, 3 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 15973 GoogleMaps   ; 1 ♂, 2 ♀♀, same data, but 2–9 November 2013, BioSCAN sample 15322 GoogleMaps   ; 4 ♂♂, 7 ♀♀, same data, but 1–8 November 2014, BioSCAN sample 16843 GoogleMaps   ; 3 ♂♂, same data, but BioSCAN sample 16501 GoogleMaps   ; 26 ♂♂, 96 ♀♀, United States, California, Los Angeles Co., Los Angeles, Carthay , 34.059°N 118.369°W, BioSCAN site 19, 1–8 April 2014, Malaise trap, 41.1 m, Coll. Teresa Dahl, BioSCAN sample 15812 (2♀♀ on slide) GoogleMaps   ; 6 ♀♀, same data, but BioSCAN sample 16338 (3 ♀♀ on slide) GoogleMaps   ; 2 ♂♂, 11 ♀♀, same data, but 2–9 December 2014, BioSCAN sample 16876 GoogleMaps   ; 1 ♂, 3 ♀♀, same data, but 28 January–4 February 2014, BioSCAN sample 15593 GoogleMaps   ; 1 ♂, 3 ♀♀, same data, but BioSCAN sample 16334 GoogleMaps   ; 2 ♂♂, 10 ♀♀, same data, but BioSCAN sample 16147 GoogleMaps   ; 4 ♂♂, 225 ♀♀, same data, but 25 February–4 March 2014, BioSCAN sample 15807 GoogleMaps   ; 3 ♂♂, 17 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 15977 GoogleMaps   ; 1 ♂, 7 ♀♀, same data, but 28 October–4 November 2014, BioSCAN sample 16871 GoogleMaps   ; 1 ♂, 4 ♀♀, same data, but BioSCAN sample 16868 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16513 GoogleMaps   ; 1 ♀, United States, California, Los Angeles Co., Burbank , 34.17°N 118.308°W, BioSCAN site 21, 1–8 March 2014, Malaise trap, 158 m, Coll. Chris Cianci, BioSCAN sample 15668 GoogleMaps   ; 1 ♀, United States, California, Los Angeles Co., Los Angeles, Echo Park , 34.074°N 118.264°W, BioSCAN site 22, Malaise trap, 133.5 m, Coll. Erin Johnson, BioSCAN sample 16302 GoogleMaps   ; 1 ♀, same data, but 28 January–4 February 2014, BioSCAN sample 15577 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16298 GoogleMaps   ; 2 ♀♀, same data, but 25 February–4 March 2014, BioSCAN sample 15770 GoogleMaps   ; 10 ♀♀, United States, California, Los Angeles Co., Los Angeles, Atwater Village , 34.114°N 118.251°W, BioSCAN site 23, 2–10 April 2014, Malaise trap, 119 m, Coll. Sidney Higgins, BioSCAN sample 15858 (1 ♀ on slide) GoogleMaps   ; 1 ♀, same data, but 2–8 January 2014, BioSCAN sample 15540 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16355 GoogleMaps   ; 5 ♀♀, same data, but 26 February–5 March 2014, BioSCAN sample 15663 GoogleMaps   ; 1 ♀, same data, but 30 April–7 May 2014, BioSCAN sample 16172 GoogleMaps   ; 1 ♀, same data, but 29 October–7 November 2014, BioSCAN sample 16707 GoogleMaps   ; 3 ♀♀, United States, California, Los Angeles Co., Los Angeles, Eagle Rock , 34.136°N 118.194°W, BioSCAN site 24, Malaise trap, 215 m, Coll. Jim Hogue, BioSCAN sample 16187 GoogleMaps   ; 1 ♂, same data, but 1–8 March 2014, BioSCAN sample 15842 GoogleMaps   ; 2 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 16018 GoogleMaps   ; 1 ♂, United States, California, Los Angeles Co., Los Angeles, Pico–Union , 34.046°N 118.275°W, BioSCAN site 25, 29 March–5 April 2014, Malaise trap, 70 m, Coll. Humberto Marquez, BioSCAN sample 15882 GoogleMaps   ; 3 ♀♀, United States, California, Los Angeles Co., Los Angeles, Mid–Wilshire , 34.058°N 118.328°W, BioSCAN site 26, 1–8 February 2014, Malaise trap, 58.7 m, Coll. Patty Lombard, BioSCAN sample 15606 GoogleMaps   ; 1 ♂, same data, but BioSCAN sample 16663 GoogleMaps   ; 3 ♂♂, 13 ♀♀, United States, California, Los Angeles Co., Los Angeles, Eagle Rock , 34.129°N 118.215°W, BioSCAN site 28, 29 March–5 April 2014, Malaise trap, 160.7 m, Coll. Eric Keller, BioSCAN sample 15871 GoogleMaps   ; 6 ♀♀, same data, but BioSCAN sample 16418 GoogleMaps   ; 3 ♀♀, same data, but 1–8 February 2014, BioSCAN sample 15710 GoogleMaps   ; 1 ♀, same data, but 28 December 2013 – 4 January 2014, BioSCAN sample 15480 GoogleMaps   ; 1 ♂, 4 ♀♀, same data, but BioSCAN sample 16245 GoogleMaps   ; 2 ♂♂, 5 ♀♀, same data, but BioSCAN sample 16241 GoogleMaps   ; 3 ♂♂, 6 ♀♀, same data, but 1–8 March 2014, BioSCAN sample 15714 GoogleMaps   ; 14 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 16044 GoogleMaps   ; 4 ♂♂, 22 ♀♀, same data, but 1–8 November 2014, BioSCAN sample 16755 GoogleMaps   ; 6 ♀♀, same data, but 29 November–6 December 2014, BioSCAN sample 16962 GoogleMaps   ; 3 ♂♂, 17 ♀♀, same data, but BioSCAN sample 16601 GoogleMaps   ; 2 ♂♂, 18 ♀♀, same data, but BioSCAN sample 16597 GoogleMaps   ; 1 ♂, 1 ♀, United States, California, Los Angeles Co., Los Angeles, Highland Park , 34.123°N 118.193°W, BioSCAN site 29, 29 March–5 April 2014, Malaise trap, 205.6 m, Coll. Natalie Brejcha, BioSCAN sample 15865 GoogleMaps   ; 2 ♀♀, same data, but 21–28 December 2013, BioSCAN sample 15488 GoogleMaps   ; 1 ♂, same data, but 1–8 February 2014, BioSCAN sample 15703 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16233 GoogleMaps   ; 3 ♀♀, same data, but BioSCAN sample 16229 GoogleMaps   ; 6 ♀♀, same data, but 1–8 March 2014, BioSCAN sample 15707 GoogleMaps   ; 2 ♀♀, same data, but 3–10 May 2014, BioSCAN sample 16032 (1♀ on slide) GoogleMaps   ; 1 ♀, same data, but 25 October–8 November 2014, BioSCAN sample 16786 GoogleMaps   ; 6 ♂♂, 8 ♀♀, United States, California, Los Angeles Co., Los Angeles, Highland Park , 34.125°N 118.189°W, BioSCAN site 30, 31 March–8 April 2014, Malaise trap, 227.8 m, Coll. Candace Franco, BioSCAN sample 15887 GoogleMaps   ; 1 ♂, 4 ♀♀, same data, but BioSCAN sample 16423 GoogleMaps   ; 25 ♂♂, 16 ♀♀, same data, but BioSCAN sample 16239 GoogleMaps   ; 12 ♂♂, 30, same data, but BioSCAN sample 16235 GoogleMaps   ; 10 ♂♂, 4 ♀♀, same data, but BioSCAN sample 15767 GoogleMaps   ; 49 ♂♂, 23 ♀♀, same data, but 3–12 May 2014, BioSCAN sample 16038 GoogleMaps   ; 13 ♂♂, 2 ♀♀, same data, but 1–8 November 2014, BioSCAN sample 16762 GoogleMaps   ; 1 ♀, same data, but 29 November–6 December 2014, BioSCAN sample 16955 GoogleMaps   ; 5 ♂♂, same data, but BioSCAN sample 16595 GoogleMaps   ; 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 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 16202 GoogleMaps   ; 1 ♀, same data, but 1–8 November 2014, BioSCAN sample 16721 GoogleMaps   ; 3 ♀♀, United States, California, Los Angeles Co., Los Angeles, Pasadena , 34.163°N 118.118°W, BioSCAN site 33, 1–8 August 2016, Malaise trap, 280 m, Coll. Leslie Harris, BioSCAN sample 18235 GoogleMaps   ; 1 ♂, same data, but 1–8 February 2016, BioSCAN sample 18180 GoogleMaps   ; 1 ♀, same data, but 1–8 June 2016, BioSCAN sample 18325 GoogleMaps   ; 15 ♀♀, same data, but BioSCAN sample 18236 GoogleMaps   ; 2 ♂♂, United States, California, Los Angeles Co., Los Angeles, Rosemead , 34.05°N 118.108°W, BioSCAN site 34, 1–8 April 2016, Malaise trap, 135 m, Coll. Deniece Lascano, BioSCAN sample 18230 GoogleMaps   ; 2 ♀♀, same data, but 1–8 July 2016, BioSCAN sample 18328 GoogleMaps   ; 1 ♀, same data, but 8–25 March 2016, BioSCAN sample 18185 GoogleMaps   ; 1 ♀, United States, California, Los Angeles Co., Monrovia. 34.158°N 117.999°W, BioSCAN site 35, 1–8 April 2016, Malaise trap, 214 m, Coll. Brian Brown, BioSCAN sample 18197 GoogleMaps   ; 12 ♀♀, same data, but 4–11 August 2016, BioSCAN sample 18370 GoogleMaps   ; 3 ♂♂, 7 ♀♀, same data, but 1–15 June 2016, BioSCAN sample 18277 GoogleMaps   ; 4 ♀♀, same data, but 1–8 March 2016, BioSCAN sample 18155 GoogleMaps   ; 3 ♂♂, 1 ♀, same data, but 1–8 May 2016, BioSCAN sample 18212 GoogleMaps   ; 8 ♀♀, same data, but 1–8 October 2016, BioSCAN sample 18422 GoogleMaps   ; 1 ♂, 1 ♀, same data, but 1–8 September 2016, BioSCAN sample 18375 GoogleMaps   ; 1 ♂, United States, California, Los Angeles Co., San Dimas , 34.086°N 117.822°W, BioSCAN site 36, 1–8 August 2016, Malaise trap, 298 m, Coll. Carla Zorko, BioSCAN sample 18401 GoogleMaps   ; 2 ♀♀, same data, but 1–8 June 2016, BioSCAN sample 18341 GoogleMaps   ; 3 ♀♀, same data, but BioSCAN sample 18246 GoogleMaps   ; 3 ♂♂, 16 ♀♀, United States, California, Los Angeles Co., Claremont , 34.09°N 117.711°W, BioSCAN site 37, 1–8 April 2016, Malaise trap, 341 m, Coll. Kathryn Turner, BioSCAN sample 18249 GoogleMaps   ; 1 ♀, same data, but 1–8 July 2016, BioSCAN sample 18338 GoogleMaps   ; 1 ♂, 3 ♀♀, same data, but 1–8 June 2016, BioSCAN sample 18337 GoogleMaps   ; 7 ♂♂, same data, but 1–8 March 2016, BioSCAN sample 18164 GoogleMaps   ; 2 ♀♀, United States, California, San Bernardino Co., Rancho Cucamonga , 34.139°N 117.521°W, BioSCAN site 38, 1–8 August 2016, Malaise trap, 451 m, Coll. Lucila Tagliani, BioSCAN sample 18407 GoogleMaps   ; 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 GoogleMaps   ; 1 ♀, United States, California, Los Angeles Co., El Segundo. 33.925°N 118.425°W, BioSCAN site 40, Malaise trap, 35 m, Coll. Jack Fulmer, BioSCAN sample 18420 GoogleMaps   ; 3 ♀♀, United States, California, Los Angeles Co., La Mirada , 33.914°N 118.005°W, BioSCAN site 43, 1–8 August 2016, Malaise trap, 63 m, Coll. Carmen Gendusa, BioSCAN sample 18383 GoogleMaps   ; 1 ♀, same data, but 1–8 February 2016, BioSCAN sample 18146 GoogleMaps   ; 1 ♂, 2 ♀♀, same data, but 1–8 March 2016, BioSCAN sample 18147 GoogleMaps   ; 1 ♂, 1 ♀, same data, but 1–8 June 2016, BioSCAN sample 18321 GoogleMaps   ; 1 ♂, 3 ♀♀, same data, but 1–8 April 2016, BioSCAN sample 18265 GoogleMaps   ; 1 ♂, 3 ♀♀, same data, but 1–8 October 2016, BioSCAN sample 18385 GoogleMaps   ; 1 ♂, 1 ♀, United States, California, Los Angeles Co., Walnut. 33.998°N 117.842°W, BioSCAN site 44, 1–8 April 2016, Malaise trap, 189 m, Coll. Emilia Park, BioSCAN sample 18251 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 18416 GoogleMaps   ; 5 ♂♂, 5 ♀♀, United States, California, San Bernardino Co., Chino Hills , 34.003°N 117.734°W, BioSCAN site 45, 1–8 April 2016, Malaise trap, 225 m, Coll. Joe Williams, BioSCAN sample 18253 GoogleMaps   ; 1 ♀, same data, but 1–8 June 2016, BioSCAN sample 18339 GoogleMaps   ; 8 ♂♂, 3 ♀♀, same data, but BioSCAN sample 18254 GoogleMaps   ; 1 ♀, United States, California, Riverside Co., Norco. 33.912°N 117.57°W, BioSCAN site 46, 1–8 April 2016, Malaise trap, 180 m, Coll. Sara Taylor, BioSCAN sample 18227 GoogleMaps   ; 1 ♀, same data, but 1–8 August 2016, BioSCAN sample 18392 GoogleMaps   ; 12 ♀♀, same data, but 1–8 July 2016, BioSCAN sample 18336 GoogleMaps   ; 12 ♀♀, same data, but BioSCAN sample 18335 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 18228 GoogleMaps   ; 1 ♀, same data, but BioSCAN sample 18393 GoogleMaps   ; 2 ♂♂, 1 ♀, United States, California, Riverside Co., Riverside , 33.984°N 117.313°W, BioSCAN site 47, 1–8 April 2016, Malaise trap, 375 m, Coll. Justin Betz, BioSCAN sample 18223 GoogleMaps   ; 2 ♀♀, same data, but 1–8 June 2016, BioSCAN sample 18279 (1 ♀, BioSCAN sample 16032, 2♂♂, 2♀♀, BioSCAN sample 15589 at MZUSP, all other specimens at LACM) GoogleMaps   .

Distribution. United States (southern California and Nevada), Mexico (Guadalajara).

Remarks. Swammerdamella marginata   is a very small scatopsid, ranging from 1.30 to 1.40 mm. The type locality of S. marginata   is Las Vegas, New Mexico. Cook (1965a) also referred to specimens of this species from additional sites in southern California (San Bernardino, Davis, Riverside, Los Angeles etc.) and Nevada (Reno). The record for Guadalajara, Mexico, may be questionable, but we did not examine the original specimens identified by Cook (1965a).

This was the most abundant species in our samples, with up to 66.1% of the total number of scatopsid specimens of the project: a total of 367 males and 1,315 females were identified in the sorted samples. The species appeared at 39 of the 47 BioSCAN collecting sites, in a total of 182 collecting events. The most abundant collecting sites for S. marginata   were 5, 18, 19, 28, and 30. As happened with Quateiella quatei   , there is a clear peak of abundance of S. marginata   in early-mid-spring, with a second peak in mid-autumn.

There is no information available on the biology of S. marginata   . In North America, there are records of adults of S. pygmaea (Loew)   associated to flowers of Staphylea floralis   ( Staphyleaceae   ) ( Cook 1956b). Staphylea   has species native to eastern North America and to California (USDA 2019), but no connection so far of this plant genus with S. marginata   has been formally proposed. In South America, there is a record of emergence of a species of a Swammerdamella   over piles of rotting grass (D.S.A., personal observation). The BOLDSystems has one single specimen of Swammerdamella   sequenced for Australia, most certainly not S. marginata   .

LACM

Natural History Museum of Los Angeles County

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Scatopsidae

Genus

Swammerdamella

Loc

Swammerdamella marginata Cook

Amorim, Dalton de Souza & Brown, Brian V. 2020
2020
Loc

Swammerdamella marginata

Cook, E. F. 1956: 24
1956