Scatopse notata (Linnaeus, 1758)

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 : 12-16

Scatopse notata (Linnaeus, 1758)

( Figs. 3 , 17 , and 42–46 )

Scatopse notata (Linnaeus, 1758) : 588 ( Tipula ). Type locality: ‘Europe’.

Refs.– Kertész, 1902: 131 (cat., syn., bibl.); Enderlein, 1912, 267; Melander, 1916: 7; Edwards, 1925: 272; Duda, 1928a: 32; Edwards, 1930: 94; Lyall, 1929: 630 (larval disc); Séguy, 1940: 296; Cook, 1957: 598, figs. 1A (male terminalia), 2G (male metathoracic tarsus), 3C (spiracular sclerite), 4A (female terminalia), 5C (male segment 7), 6E (wing); Cook, 1963: 16, Figs. 51 (male segment 7), 53 (female terminalia), 54 (male terminalia), 58 (wing); Haenni and Vaillant, 1994 (biol.); Amorim, 2009 (Neotropical catalog). Type?

Diagnosis. Large specimens ( Fig. 3 ). R 5 running apart of C and reaching anterior wing margin on distal third of wing; a weak incomplete spurious vein between M 1 and R 5 ( Fig. 44 ). Anterior spiracle on a small dorsal sclerite entirely separate from rest of proepimeron ( Fig. 43 ). Male first tarsomere of hind leg shorter and wider than second tarsomere. Male with very complex terminalia, sternite 9 Y-shaped, gonocoxites fused to epandrium laterally, ventrally reduced to a pair of arms; gonostyle and paramere setose at apex; cerci largely developed. Female sternite 8 ( Figs. 17 and 45–46 ) with two pairs of distal projections—the gonapophyses 8 and a pair of medial projections—and a wide medial plate with fine setation along distal margin.

Material Examined. 1♀, United States, California, Los Angeles Co., Los Angeles, Korea Town, 34.072°N 118.291°W, 85.6 m, Coll.

Peter Ralph , BioSCAN sample 15796 ( LACM) ; 1 ♀, United States, California, Los Angeles Co., Los Angeles, Highland Park , 34.125°N 118.189°W, 1 February 2014 – 8 February 2014, Malaise trap, 227.8 m, Coll. Candace Franco, BioSCAN sample 15763 ( LACM) ; 1 ♀, United States, California, Los Angeles Co., Los Angeles, Rosemead , 34.05°N 118.108°W, 1–8 December 2015, Malaise trap, 135 m, Coll. Deniece Lascano, BioSCAN sample 18116 (on slide) ( LACM) ; 1 ♀, United States, California, Los Angeles Co., Claremont , 34.09°N 117.711°W, 1–8 February 2016, Malaise trap, 341 m, Coll. Kathryn Turner, BioSCAN sample 18163 ( LACM) .

Distribution. Cosmopolitan.

Remarks. This species is cosmopolitan, but not usually collected at tropical latitudes. In South America, there are records for Chile and southern Brazil ( Amorim 1982, 2009). There are records of S. notata in different parts of continental United States ( Cook 1957). This species is quite rare in our material and includes only four females, collected at sites 11, 30, 34, and 37 between January and March. Scatopse notata can be easily recognized among the scatopsid species found in California by the long R5 running separate from C, reaching the margin on the distal third of the

wing with a (weak) spurious vein between M 1 and R 5. Specimens of S. notata are 3.5 mm long, larger than all remaining scatopsid

species found in California.

The BOLDSystems website has sequences of 103 specimens of

Scatopse , corresponding to three clusters, one of which—probably

Scatopse notata —with 77 specimens (http://boldsystems.org/index.

php/Public_SearchTerms?query= Scatopse [tax]).

Figures

Figs. 1–6. Habitus. 1. Ectaetia betzi sp.nov., male holotype. 2. Psectrosciara gonzalezae sp.nov., female paratype. 3. Scatopse notata (Linnaeus), female. 4. Aztecatopse huertai sp.nov., female paratype. 5. Swammerdamella marginata Cook, male. 6. Swammerdamella marginata Cook, female.

Figs. 15–20. Abdomen. 15. Ectaetia betzi sp.nov, male holotype. 16. Psectrosciara gonzalezae sp.nov., female paratype. 17. Scatopse notata (Linnaeus), female. 18. Aztecatopse huertai sp.nov., female paratype. 19. Coboldia fuscipes (Meigen), male. 20. Coboldia fuscipes (Meigen), female (white arrow indicates the diagnostic lunulate sternite 7 posterior incision).

Figs. 42–44. Scatopse notata (Linnaeus), female. 42. Head, lateral view. 43.Thorax, lateral view. 44.Wing.

Figs. 45–46. Scatopse notata (Linnaeus), female terminalia. 45.Ventral view. 46. Dorsal view.

Figs. 47–51. Holoplagia guamensis (Johannsen), male. 47. Head, lateral view. 48.Thorax, lateral view. 49.Wing. 50. Segment 8 and terminalia, ventral view. 51. Segment 8 and terminalia, dorsal view.