Megaselia defibaughorum, Hartop, Emily A., Brown, Brian V. & Disney, R. Henry L., 2015

Hartop, Emily A., Brown, Brian V. & Disney, R. Henry L., 2015, Opportunity in our Ignorance: Urban Biodiversity Study Reveals 30 New Species and One New Nearctic Record for Megaselia (Diptera: Phoridae) in Los Angeles (California, USA), Zootaxa 3941 (4), pp. 451-484 : 457-458

Megaselia defibaughorum new species ( Figs. 7 , 39 , 69 , 99 )

Diagnosis. Male. In the group VIII key of Borgmeier (1966), M. defibaughorum keys to couplet 9, where its CI of 0.36–0.38 makes it too long to be M. pygmaeoides [now considered to be M. berndseni ( Schmitz 1919) ], but not long enough to continue in the key. Taking the upper end of the CI range and continuing to couplet 10, M.

defibaughorum keys to M. bovista Gimmersthal [now considered to be M. agarici ( Lintner 1895) ] from which it can immediately be distinguished by its lack of the clear posterior epandrial processes that make M. agarici so easily identifiable. M. defibaughorum superficially appears quite similar to M. folliculorum Disney (Disney, Taylor et al. 2011) , but in addition to differences in the structure and setation of the epandrium (the epandrium of M. defibaughorum is more pronounced behind, under the anal tube and has longer and more plentiful setae), M. defibaughorum lacks the 1–1.5 rows of reduced, spinose rows of setae on the fore basitarsus (foretarsomere 1).

Description. See Table 3.

Distribution. Los Angeles, California ( USA).

Etymology. Named in honor of the Defibaugh family, hosts of BioSCAN site 15.

Biology. Unknown.

Holotype. ♂, USA: CALIFORNIA: Los Angeles, Mid-City, 28.XII.2013 – 4.I.2014, Oxborough, Malaise trap ( LACM 329769).

Paratypes. 1 ♂, USA: CALIFORNIA: Los Angeles, Highland Park, 1–8.II.2014, Franco, Malaise Trap ( LACM 329770), 3 ♂, USA: CALIFORNIA: Los Angeles, Mid-City, 28.XII.2013 – 4.I.2014, Oxborough, Malaise trap ( LACM 329771, 2 CUMZ).

Additional Material Examined. USA: CALIFORNIA: Los Angeles: Glendale, Gardena, 3 ♂, II–III.2014, Malaise traps ( LACM, MCZC, USNM).

Figures

FIGURES 1 – 9. Habitus images (lateral). 1. Megaselia armstrongorum. 2. Megaselia bradyi. 3. Megaselia brejchaorum. 4. Megaselia carthayensis. 5. Megaselia ciancii. 6. Megaselia creasoni. 7. Megaselia defibaughorum. 8. Megaselia donahuei. 9. Megaselia francoae.

FIGURES 33 – 42. Right wing, dorsal. 33. Megaselia armstrongorum. 34. Megaselia bradyi. 35. Megaselia brejchaorum. 36. Megaselia carthayensis. 37. Megaselia ciancii. 38. Megaselia creasoni. 39. Megaselia defibaughorum. 40. Megaselia donahuei. 41. Megaselia francoae. 42. Megaselia fujiokai.

FIGURES 69 – 74. Male genitalia, left lateral. 69. Megaselia defibaughorum. 70. Megaselia donahuei. 71. Megaselia francoae. 72. Megaselia fujiokai. 73. Megaselia hardingorum. 74. Megaselia heini.

FIGURES 93 – 108. Hypandria (ventral unless noted otherwise) 92. Megaselia armstrongorum. 93. Megaselia bradyi. 94. Megaselia brejchaorum. 95. Megaselia carthayensis. 96. Megaselia ciancii. 97. Megaselia creasoni. 98. Megaselia defibaughorum. 99. Megaselia donahuei. 100. Megaselia francoae. 101. Megaselia fujiokai. 102. Megaselia hardingorum. 103. Megaselia heini. 104. Megaselia hentschkeae. 105. Megaselia hentschkeae (detail left process). 106. Megaselia hoffmanorum. 107. Megaselia hoggorum. 108. Megaselia hoguei.