Biology Reference
In-Depth Information
Figure 2.16 Distribution of
H. sulcata in India. (
)
Map not to scale.
palpal segment II is with a small arcuate denticle, which may not be developed in
small specimens. Ventral spur of palpal segment III is moderate and directed poste-
riorly. Hypostome is with 6/6 longitudinal rows of denticles.
Scutum: Distinct marginal grooves are of normal length. Festoons number 11.
Legs: All coxa are with median spurs; spurs on coxa I are narrow and tapering;
spurs on coxa II and III are very short and broad; spur on coxa IV is very long, but
shorter than the length of coxa IV.
Female ( Figures 2.17 and 2.18 ) 110,51
Capitulum: Dorsally basis capitulum is with large, widely separated porose areas
and with very short dorsal cornua or no dorsal cornua; width is 1.5 times as length.
Lateral salience of palpal segment II is moderate, dorsally posterior margin of pal-
pal segment II is with short arcuate projection; it may be absent in small speci-
mens. Ventral spur on palpal segment III is moderate and directed posteriorly.
Hypostome is with 4/4, rarely 5/5 or 3/3 longitudinal rows of denticles.
Scutum: Scutum is wide-oval or almost circular. Cervical grooves are narrow
anteriorly, wider and shallower posteriorly, and two-thirds of scutum length.
Punctations are large, deep, and dense. Genital operculum is U-shaped with thick-
ened lateral margins.
Legs: Coxa I has a distinct median spur or slight tubercles.
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