, two segmented; proximal segment, 1.34-1.59 mm ([bar.x] = 1.44 [+ or -] 0.08 mm, n = 7) with numerous primary (ancestral) and secondary sensilla similar to that shown for N.
One-segmented, length 0.48- 0.60 mm ([bar.x] = 0.55 [+ or -] 0.05 mm).
108.0-123.0[degrees] (x = 117.0 [+ or -] 6.0[degrees]); urogomphus
with a single article, spherical; maxillary palpomere 4th as long as 3rd C.
calidus have relatively few additional primary sensilla that are restricted to femoral anteroventral surfaces and the apex of each urogomphus
. Alarie et al.
.-Single segmented, length 1.46-1.71 mm (= 1.54 [+ or -] 0.08 mm) with 4 hair-like distal sensilla, 3 long hair-like prominent sensilla on the shaft, and one small spine near the base.
. -- Single segmented, length 0.81-0.90 mm ([bar.x] = 0.85 mm, n = 4) with 4 apical sensilla, 3 long hair-like prominent sensilla arising from the proximal third and one shorter sub distal spine-like sensillum near origin of urogomphus
. -- Two segmented; proximal segment length 0.92-1.11 mm ([bar.x] = 1.01 [+ or -] 0.06 mm, n = 7) with 11 sensilla, including one small spine near origin and three long hair-like prominent sensilla arising distally; segment 2 subequal to proximal segment and hair-like with a hair-like sensillum arising distally.
(12.) Wolfe GW and Roughley RE: Description of the pupa and mature larvae of Matus ovatus ovatus us Leech (Coleoptera: Dytiscidae) with a chaetotaxal analysis emphasizing mouth parts, legs, and urogomphus
. Proc Acad Nat Sci Phil.
1); posterior margins of tergites reddish-brown; proximal urogomphus
with pronounced reddish-brown basal band, narrow less intensely pigmented band distally on some specimens.
bore a small sensillum proximally and numerous, long, hair-like sensilla, arising laterally to produce a plumose appearance.