The genus Keilbachia Mohrig (Diptera: Sciaridae) in a biodiversity hot spot: new sympatric species from Kambaiti, Burma Author Vilkamaa, Pekka Author Komarova, Lyudmila A. Author Hippa, Heikki text Zootaxa 2006 1123 39 55 journal article 50761 10.5281/zenodo.171760 80bfa1bc-37d4-4ba0-8fc9-8f3fc0139390 1175­5326 171760 Key to the species of Keilbachia 1. Gonostylus with 2 or more large mesial megasetae arising from common basal body 2 ­ Gonostylus with only 1 large mesial megaseta arising from basal body ...................... 3 2. Gonostylus with 2 mesial megasetae arising from common basal body......................... ....................................................................................................... biflagrispina Mohrig ­ Gonostylus with 6 mesial megasetae arising from common basal body. flagria Mohrig 3. Ventral side of gonocoxite at least slightly lobe­like and produced at apicomesial angle, ( Menzel & Mohrig 2000 : Figs. 322, 325; Menzel & Martens 1995 : Fig. 16); gonostylus with elongated mesial seta, distinctly longer than other mesial setae......... 4 ­ Ventral side of gonocoxite at apicomesial angle simple, not lobe­like and produced; gonostylus without elongated mesial seta ( Figs. 5–9 ) .................................................. 5 4. Ventral apicomesial lobe of gonocoxite prominent; large mesial megaseta on middle of gonostylus; elongated apicomesial seta long, much longer than mesial large megaseta; antennal flagellomeres, palpomeres, tibiae, and tarsi unusually elongated .................... ........................................................................................................... nepalensis Mohrig ­ Ventral apicomesial lobe of gonocoxite small; large mesial megaseta on basal half of gonostylus; elongated mesial seta short, about as long as large mesial megaseta; antennal flagellomeres, palpomeres, tibiae, and tarsi normal........................ hamata Menzel 5. Gonostylus with subapical megasetae ( Figs. 5–9 ) ........................................................ 7 ­ Gonostylus without subapical megasetae......................................................................6 6. Maxillary palp without sensory pit; tegmen broadest subapically, with sharp apicolateral shoulders ..................................................................................... acerspina Mohrig ­ Maxillary palp with sensory pit; tegmen broadest basolaterally, without sharp apicolateral shoulders. ...................................................................................... indigena Mohrig 7. Subapical megasetae of gonostylus stout (e.g. Figs. 5 , 7–9 )......................................... 8 ­ Subapical megasetae of gonostylus slender ( Fig. 6 ). ................................ arrecta sp. n. 8. Large mesial megaseta of gonostylus short, shorter than maximal width of gonostylus; tegmen unmodified, with straight lateral sides ( Fig. 5 A, B) .................... apprima sp. n. ­ Large mesial megaseta of gonostylus long, at least as long as maximal width of gonostylus; tegmen modified, with curved or complex lateral sides ( Figs. 6–9 ).................. 9 9. Subapical megasetae of gonostylus close to each other, both at apical fourth of gonostylus ( Figs. 6–9 ). ........................................................................................................ 10 ­ Subapical megasetae of gonostylus wider apart, basalmost one at apical third of gonostylus ............................................................................. sasakawai (Mohrig & Menzel) 10. Subapical megasetae of gonostylus subequal in size .................................................. 11 ­ Apicalmost subapical megaseta of gonostylus much larger than other........................... ............................................................................................ ferrata (Hippa & Vilkamaa) 11. Basal body of large mesial megaseta of gonostylus with apical lobe ( Fig. 9 ) ............ 17 ­ Basal body of large mesial megaseta of gonostylus without apical lobe ( Figs. 5–8 ).. 12 12. Basal body of large mesial megaseta of gonostylus long, at least 3 times as long as wide ( Fig. 8 ). ............................................................................................................... 16 ­ Basal body of large mesial megaseta of gonostylus at most 2 times as long as wide ( Figs. 5 , 7 ) ................................................................................................................... 13 13. Tegmen modified, slightly broader subbasally than subapically, with apicolateral roundish shoulders, sockets of subbasal megasetae of gonostylus about as long as megasetae themselves ........................................................................ tenerrima Menzel ­ Tegmen simple, much broader subbasally than subapically, without apicolateral roundish shoulders, sockets of subbasal megasetae of gonostylus much shorter than megasetae themselves ( Figs. 5 C, 6A, D, 7A, C)..................................................................... 14 14. Mesial megaseta short and slightly curved ( Fig. 5 D) ................................ demissa sp. n. ­ Mesial megaseta of gonostylus long and strongly curved (e.g. Fig. 7 B, D) ............... 15 15. Basal body of mesial megaseta of gonostylus uniformly broad ( Fig. 7 B). scutica sp. n. ­ Basal body of mesial megaseta of gonostylus narrowed basally ( Fig. 7 D) .................... .......................................................................................................... flagrispina Mohrig 16. Distance between 2 subapical megasetae of gonostylus wider than length of megaseta ( Fig. 8 B) .................................................................................................. tenuicula sp. n. ­ Distance between 2 subapical megasetae of gonostylus almost as wide as length of megaseta ( Fig. 8 D) ......................................................................................... mira sp. n. 17. Apical lobe of basal body of mesial megaseta rounded and broad ( Fig. 9 B) ................. ................................................................................................................... arcuata sp. n. ­ Apical projection of basal body of mesial megaseta pointed and narrow ( Fig. 9 E) ....... .................................................................................................................. aculeata sp. n.