Apiochaeta, Czerny, 1903
|
publication ID |
https://doi.org/ 10.11646/zootaxa.1944.1.1 |
|
persistent identifier |
https://treatment.plazi.org/id/03F28784-7241-FFC6-248F-A85130C2FB8D |
|
treatment provided by |
Felipe |
|
scientific name |
Apiochaeta |
| status |
|
Key to the species of Apiochaeta View in CoL View at ENA .
1. First and second dorsocentral bristles as long as posterior bristle. At least one pair of lateral scutellar bristles subequal in length to apical scutellars. Three or four fronto-orbital bristles; mid fronto-orbital similar in length to posterior fronto-orbital. Head height more than ¾ width ( Fig. 1 View FIGURES 1&2 ). Face elongate and sunken ventrally ( Fig. 1 View FIGURES 1&2 ). Frons evenly pilose and without shiny posterolateral region. Gena without horizontal bands. Legs yellow, sometimes with femora and distal tarsomeres brown. Distiphallus slender apically ( Fig. 37 View FIGURES 35–38 ). Segments 6–8 of female abdomen strongly telescoped; tergite 7 usually large and conical with central longitudinal desclerotization. Spermathecal duct entirely unpigmented ( Fig. 11 View FIGURES 10&11 )..........................2
- First and second dorsocentral bristles short, conspicuously shorter than posterior bristle. Lateral scutellar bristles much shorter than apical scutellars. Three fronto-orbital bristles; mid fronto-orbital 1/2–2/3 length of other fronto-orbitals ( Fig. 2 View FIGURES 1&2 ). Head height approximately 2/3 width ( Fig. 2 View FIGURES 1&2 ). Face flat, and as wide (or wider) than long. Posterior corners of frons to base of posterior fronto-orbital shiny and brown to dark yellow. Gena with dorsal white tomentose band, median yellow tomentose band, and ventral yellow shiny band. Fore tibia and tarsi brown. Distiphallus with broad distal elaboration on right distal margin ( Fig. 44 View FIGURES 44–49 ). Female abdominal segments 6–8 not strongly telescoped, if at all; tergite 7 not as above. Spermathecal duct pigmented distally ( Fig. 10 View FIGURES 10&11 ).........................................................................................................15
2. Pleuron with single horizontal stripe...........................................................................................................3
- Pleuron with two horizontal stripes...........................................................................................................11
3. Notal stripe wide posteriorly and acutely pointed anteriorly. M 1+2 ratio 3.1 .................. A. bicolor (Schiner)
- Notal stripe thin along entire length with ends rounded. M 1+2 ratio less than 2.5........................................4
4. Costal and subcostal cells dark ( Fig. 9 View FIGURES 3–9 ) ................................................... A. costalis (Malloch) View in CoL , comb. nov.
- Costal and subcostal cells clear ( Figs 5, 7&8 View FIGURES 3–9 ).............................................................................................5
5. Two pairs of lateral scutellar bristles. Occiput entirely pale........................................................................6
- One pair of lateral scutellar bristles. Occiput usually with brown spot.......................................................7
6. Anterior and dorsal margins of first flagellomere extensively brown. Frons sometimes with faint medial stripe on anterior half and ocellar spot wide. Postvertical bristle well-developed. Pleural stripe sometimes absent in females. Wing clear. Surstylus with pronounced anterobasal lobe ( Fig. 15 View FIGURES 13–18 ) ................................. ........................................................................................................... A. tincticornis (Malloch) View in CoL , comb. nov.
- First flagellomere yellow with wide infuscation around base of arista. Frons with pigment restricted to ocellar tubercle. Postvertical bristle weak. Pleural stripe always present. Wing clear or clouded distally along R 2+3 and R 4+5 (usually also with cloud around dm-cu). Surstylus with small anterobasal lobe ( Figs 17&18 View FIGURES 13–18 ) ........................................................................................................ A. varia (Malloch) View in CoL , comb. nov.
7. Wing clear or with very dark anterodistal stripe ( Fig. 6 View FIGURES 3–9 ). Male face yellow. Frons sometimes with additional posteromedial stripe. Surstylus wide, with subapical constriction ( Figs 27&28 View FIGURES 27–34 ) ............................... ............................................................................................................................... A. vitticollis (Blanchard)
- Wing clear with clouds around dm-cu and apices of R 2+3, R 4+5 and M 1 ( Fig. 7 View FIGURES 3–9 ). Male face brown to dirty white. Frons with pigment restricted to ocellar tubercle. Surstylus thin and evenly tapering apically ( Figs 13 View FIGURES 13–18 , 19&21 View FIGURES 19–26 )...................................................................................................................................................8
8. Both apical and lateral scutellar bristles very well-developed (comparable in size to each other and dorsocentral bristles). Length 3.8–6.0mm. Abdominal tergite 1 usually yellow.................................................9
- Either apical or lateral scutellar bristles poorly developed (one pair of bristles 2/5 length of the other). Length 2.6–4.1mm. Abdominal tergite 1 brown.......................................................................................10
9. Lower margin of anepimeron and katatergite yellow. Anepisternum only brown on dorsal half. First flagellomere with small infuscation around base of arista. Back of head in females with one pair of stripes radiating from foramen. Body length 4.0–6.0mm ............................................................ A. lenticula View in CoL sp. n.
- Anepimeron and katatergite brown. Anepisternum brown with ventral margin yellow. First flagellomere with wide spot around base of arista in males, and sometimes entirely light brown (excluding basal margin) in females. Back of head in females at most with one pair of small lateral spots. Body length 3.8– 4.0mm ............................................................................................................................... A. mallochi View in CoL sp. n.
10. Lateral scutellar bristles 2/5 length of apical scutellar bristles. Hind tibia light brown. Anatergite brown lateral to scutellum. Surstylus bifid, without internal process ( Figs 13&14 View FIGURES 13–18 ) .................. A. furcillata View in CoL sp. n.
- Apical scutellar bristles 2/5 length of lateral scutellar bristles. Hind tibia yellow. Anatergite entirely yellow. Surstylus undivided apically and with thin internal process ( Figs 21&22 View FIGURES 19–26 ) ........................................... ................................................................................................................. A. excepta (Malloch) View in CoL , comb. nov.
11. Hairs on arista much longer than width of central filament. Two pairs of lateral scutellar bristles. Scutum with additional medial stripe. Proepisternum yellow around base of bristle. Males with mid and hind femora, proepisternum, and last tarsal segment of fore and mid legs yellow..................................................12
- Hairs on arista not longer than central filament ( Fig. 1 View FIGURES 1&2 ). One pair of lateral scutellar bristles. Scutum without medial stripe. Proepisternum with brown spot around base of bristle. Males with subapical band on mid and hind femora, and last tarsal segment on fore and mid legs brown .................................................. .................................................................. A. similis View in CoL complex (only males can be identified further) … 13
12. Frons yellow with strong medial stripe ( Fig. 1 View FIGURES 1&2 ). Abdominal tergites 3–6 mostly brown. Cloud along dmcu extending to R 4+5 ( Fig. 3 View FIGURES 3–9 ). Surstylus abruptly hooked, forming a 90° angle along anterior margin ( Fig. 23 View FIGURES 19–26 ). Distiphallus slender distally ( Fig. 41 View FIGURES 39–43 ) ............................................ A. philippii (Rondani) View in CoL , comb. nov.
- Frons entirely yellow. Abdominal tergites 3–6 yellow with brown anterolateral spots (sometimes con- nected). Cloud along dm-cu rarely touching R 4+5 ( Fig. 5 View FIGURES 3–9 ). Surstylus evenly and gradually hooked ( Fig. 25 View FIGURES 19–26 ). Distiphallus strongly spinulose distally with subapical lobate projection ( Fig. 39 View FIGURES 39–43 )...................................... ............................................................................................................. A. chiloensis (Malloch) View in CoL , comb. nov.
13. Back of head usually brown on ventral half (sometimes entirely yellow). Fore coxa usually with basal light brown stripe extending to midpoint of coxa (occasionally entirely pale). Apical lobe on surstylus approximately half height of epandrium and longer than basal section of surstylus ( Fig. 31 View FIGURES 27–34 )...................... ................................................................................................... A. pictipennis (van der Wulp) View in CoL , comb. nov.
- Back of head yellow, sometimes with one pair of spots or stripes radiating from foramen. Fore coxa with light basal spot. Apical lobe of surstylus small and lobate (height less than 1/3 that of the epandrium; Fig. 31 View FIGURES 27–34 ), or broadly clavate and nearly as high as epandrium ( Fig. 33 View FIGURES 27–34 )...........................................................14
14. Surstylus with apical lobe small, distinctly less than half height of epandrium ( Fig. 31 View FIGURES 27–34 )............................. ........................................................................................................................................ A. dacryodes sp. n.
- Surstylus with apical lobe nearly as high as epandrium ( Fig. 33 View FIGURES 27–34 ) ............ A. similis (Malloch) View in CoL , comb. nov.
15. Mid dorsocentral bristle equidistant from anterior and posterior dorsocentrals. Notum sometimes entirely brown, but usually with yellow stripes and white humeral patches. Mid and hind legs tinged with brown, with dorsal surface of femora slightly darker. Surstylus relatively stout with small posterobasal lobe ( Fig. 45 View FIGURES 44–49 ). Male cerci less than half length of surstylus ( Fig. 46 View FIGURES 44–49 ). Distal hypandrial bristle absent ( Fig. 44 View FIGURES 44–49 ). Pregonite present ................................................................................................................ A. aterrima Malloch View in CoL
- Mid dorsocentral bristle closer to anterior dorsocentral than posterior dorsocentral. Notum almost always yellow with one pair of brown medial stripes and one pair of white anterolateral patches (occasionally brown with white anterolateral patches). Mid and hind legs yellow, occasionally with dorsal apex of femora brownish. Surstylus thin and bifid with long posterobasal process ( Fig. 48 View FIGURES 44–49 ). Male cerci 2/3 length of surstylus ( Fig. 49 View FIGURES 44–49 ). Minute distal hypandrial bristle present ( Fig. 47 View FIGURES 44–49 ). Pregonite absent.............................. ...................................................................................................................................... A. connexa Malloch View in CoL
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.