Larval Description and Phylogenetic Placement of the Australian Endemic Genus Barretthydrus Lea, 1927 (Coleoptera: Dytiscidae: Hydroporinae: Hydroporini: Sternopriscina) Author Alarie, Yves Author Michat, Mariano C. Author Hendrich, Lars Author Watts, Chris H. S. text The Coleopterists Bulletin 2018 2018-12-28 72 4 639 661 http://dx.doi.org/10.1649/0010-065x-72.4.639 journal article 5023 10.1649/0010-065X-72.4.639 6c68ffec-a5cc-4d0e-88d0-eeb1ba6c8130 1938-4394 4789513
Table 3. Number of secondary setae on the legs of third instars of Barretthydrus geminatus (BAGE) and Barretthydrus tibialis (BATI). Four specimens of each species were studied. CO = coxa; FE = femur; TA = tarsus; TI = tibia; TR = trochanter. Sensillar series: A = anterior; AD = anterodorsal; Adi = anterodistal; AV = anteroventral; D = dorsal; NS = natatory setae; PD = posterodorsal; Pr = proximal; PV = posteroventral; V = ventral. Total is the total number of secondary setae on the segment.
SegmentSensillar seriesBAGEBATISegmentSensillar seriesBAGEBATI
ProCOD4–56–8MesoTINS(PD)18–2219–20
A2–32–3AD6–89–11
V5–77–10AV5–910–13
Total11–1515–21PV6–77–10
ProTRPr11Total36–4547–51
ADi0–20–1MesoTANS(PD)16–1914–16
Total1–31–2AD3–46–7
ProFENS(PD)9–1211–14AV4–56–8
AD6–1011–12PV2–46–7
AV13–1618–20Total26–3034–37
PV7–1012–14MetaCOD5–77–10
Total35–4552–58A57–9
ProTINS(PD)12–1714–15V4–611–14
AD3–44–5Total14–1826–32
AV2–31–4MetaTRPr22–3
PV2–56–7ADi2–32–2
Total19–2727–31Total4–54–5
ProTANS(PD)9–1210–11MetaFENS(PD)6–98–12
AD22–3AD10–1815–16
AV00AV14–1818–24
PV44–6PV8–1319–22
Total15–1817–19Total43–5366–69
MesoCOD6–109–13MetaTINS(PD)20–2218–22
A2–54–6AD8–1114–16
V5–67–11AV6–87–10
Total15–2121–29PV69–11
MesoTRPr1–30–2Total40–4650–55
ADi1–21–2MetaTANS(PD)19–2219–21
Total2–52–3AD4–57–10
MesoFENS(PD)11–1612–14AV5–88–10
AD7–1412–17PV3–57–9
AV13–1616–18Total31–3843–47
PV11–1414–19
Total44–5156–64