Palpi aplenty: new species in the Chrysotus longipalpus species group (Diptera: Dolichopodidae) Author Runyon, Justin B. Author Capellari, Renato S. text Zootaxa 2018 2018-03-23 4399 4 579 585 journal article 30427 10.11646/zootaxa.4399.4.8 96c88399-e0ca-49a5-a94d-0fc5c14245fd 1175-5326 1206904 283F80BF-CD7A-4A7E-AE24-C58353217098 Key to males of the Chrysotus longipalpus species group (modified from Capellari 2015 ) 1 Eyes nearly contiguous below antennae; antennal postpedicel subtriangular; palpus variously enlarged. First tarsomere I with ventroapical swelling; tibia III with row of anterior to anterodorsal setae; femur III with 2 rows of ventral setae on basal half … Chrysotus longipalpus species group..................................................................... 2 - Not with the above combination of characters................................................other species groups 2 Palpus clearly divided into an enlarged basal part and a strap-like apical projection after abrupt tapering................. 3 - Palpus not clearly divided into two parts................................................................... 7 3 Palpus brownish, thick ( Capellari 2015, fig. 1f ); coxa I light brown, yellow at apex, with brownish setae on anterior surface (Belize).......................................................................... C. pachystoma Capellari - Palpus mostly white or yellowish, thin; coxa I entirely yellow, with whitish to yellow setae on anterior surface............ 4 4 Basal part of palpus densely covered with brownish setae; distal part slightly tapered towards apex, without apical lamella.. 5 - Basal part of palpus covered sparsely with brownish setae; distal part strip-like, with apical lamella.................... 6 5 Palpus with silvery tip ( Capellari 2015, fig. 1a ); apical 1/3–1/4 of femur III brown.................. C. coquitos Capellari - Palpus with brown tip ( Fig. 3 ); femur III entirely yellow...................................... C. mccreadiei sp. nov. 6 Apex of palpus narrowly oblong, slightly pointed and white ( Capellari 2015, fig. 1d )................ C. miripalpus Parent - Apex of palpus rounded and black ( Figs 4a, b , 5 ).............................................. C. keyensis sp. nov. 7 Palpus entirely bright silvery, relatively short (length ± 2x width) and often truncate apically; nearly bare of hairs or setae (as in Figs 1, 2 )............................................................................................ 8 - Palpus never entirely bright silvery, but often bright yellowish; relatively long (length> 2.5x width), either uniformly narrow or only gradually tapering towards apex; with hairs or setae scattered over much of surface.......................... 10 8 Arista-like stylus slightly broadened, feathered, and white at apex ( Fig. 1 )........................ C. plumarista sp. nov. - Arista unmodified..................................................................................... 9 9 Palpus oblong ( Capellari 2015, fig. 1b ); antenna entirely brown; coxae and pleura brown............ C. crosbyi Van Duzee - Palpus distinctly truncate apically and pointed laterally ( Fig 2 ); antenna with first flagellomere yellow ventrally; coxae and pleura mostly yellow..................................................................... C. mystax sp. nov. 10 Palpus uniformly narrow and straight..................................................................... 11 - Palpus tapered towards apex............................................................................ 12 11 Antenna brown; palpus brown with silvery tip ( Capellari 2015, fig. 1h ); coxa I brown, femur I yellow...................................................................................................... C. zumbadoi Capellari - Antenna yellow; palpus yellow, bright silvery ( Capellari 2015, fig. 1g ); coxa and femur I whitish yellow.................................................................................................. C. xiphostoma Robinson 12 Palpus sub-triangular with rounded apex, entirely yellow ( Capellari 2015, fig. 1c )................ C. longipalpus Aldrich - Palpus narrow throughout, pointed, basal half yellow with apical half brownish and silvery pruinose ( Capellari 2015, fig. 1e )............................................................................... C. neopedionomus Capellari