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Fig. 9 A-E. Streptocephalus linderi Moore (I cf sl = 13.4 mm, USNM 184652). A. Head and right antenna in lateral view, B. left antenna in
inner view, C. detail from B. D. genitalia in ventral view, E. apex of finger of right hand in lateral view. bj. basal joint, bp. non-retractile part
of right penis, fa. frontal appendage, fi. finger, pd. peduncle, sp. spur, sl. abdominal segment 1 & tho thumb. Scale bars: A & B. 1.0 mm, C. 0.2
mm,D & E. 0.1 mm.
the subapical lateral lamella of the apex of the finger,
i.e. the spiniform structures shown in Fig. 9 E, which
can be absent, with in lieu a simple undulate margin
(Moore, 1966), only two characters are useful to distinguish S. linderi from S. potosinensis: (1) the anterior
margin of the distal tooth in S. linderi is anterodorsally prolonged into a short acuminate structure (Fig. 9
C), while the same tooth in S. potosinensis is dorsally
spatulate (Fig 12 C), and (2) the dorsal lamella of the
finger situated just at the first geniculation, is short in
S. linderi (Fig. 9 C) while in S. potosinensis it is broad
and prominent.
Fig. 9 A-E. Streptocephalus linderi Moore (I cf sl = 13.4 mm, USNM 184652). A. Head and right antenna in lateral view, B. left antenna in
inner view, C. detail from B. D. genitalia in ventral view, E. apex of finger of right hand in lateral view. bj. basal joint, bp. non-retractile part
of right penis, fa. frontal appendage, fi. finger, pd. peduncle, sp. spur, sl. abdominal segment 1 & tho thumb. Scale bars: A & B. 1.0 mm, C. 0.2
mm,D & E. 0.1 mm.
the subapical lateral lamella of the apex of the finger,
i.e. the spiniform structures shown in Fig. 9 E, which
can be absent, with in lieu a simple undulate margin
(Moore, 1966), only two characters are useful to distinguish S. linderi from S. potosinensis: (1) the anterior
margin of the distal tooth in S. linderi is anterodorsally prolonged into a short acuminate structure (Fig. 9
C), while the same tooth in S. potosinensis is dorsally
spatulate (Fig 12 C), and (2) the dorsal lamella of the
finger situated just at the first geniculation, is short in
S. linderi (Fig. 9 C) while in S. potosinensis it is broad
and prominent.