Legs: Legs are moderately long and thin. Coxa are each with a broadly triangu-
lar spur extending well beyond posterior margin; spurs are successively slightly
decreasing in size from I to IV.
Larva ( Figures 2.23 and 2.24 ) 72
Length is approximately 0.75 mm, breadth 0.51 mm.
Capitulum: Basis capitulum is dorsally approximately 2 times as broad as long;
cornua are obsolete. Palpi are campanulate. Hypostome is slightly longer than
palpi, and hooklets in approximately five rows; dental formula is 2/2, with six or
seven denticles in a file.
Scutum: Scutum is approximately 1.3 times as broad as long. Cervical grooves
and punctations are approximately as in nymph.
Legs: Coxa I is with short, broadly rounded spur; II is with slight, broadly
rounded ridge on posterior margin; and III is with minute ridge.
Related Species 65,72
In the subgenus Herpetobia, H. himalaya is closely related to H. nepalensis, but differs
chiefly as follows: male cornua 0.6 times as long as the base of basis capitulum (0.35
times as long in nepalensis), female porose areas small rather than large, posteroexter-
nal juncture of female palpal segment II slightly flared (rounded in nepalensis), infra-
internal setae number six rather than two (both sexes), female genital operculum
longitudinally sub-quadrate (transversely oval in nepalensis). The dental formula is
5/5 in male and 7/7 in female of himalaya;innepalensis it is 4/4 in both sexes.
The larva and nymph of himalaya are morphologically related to those of kashmiren-
sis and nepalensis. The nymph of kashmirensis has a 4/4 dental formula as compared to
3/3 in himalaya; the ventral spur of palpal segment III in kashmirensis is smaller, while
it is larger in himalaya; the basis capitulum lacks cornua in kashmirensis and nepalensis
but himalaya possesses large cornua; the spiracular plates are broadly ovate in himalaya
as compared to those in kashmirensis and nepalensis.Thelarvaofkashmirensis has a
3/3 dental formula, while himalaya has 2/2. There is a definite spur on coxa I in hima-
laya but absent or obsolete in kashmirensis and nepalensis. The nymph of nepalensis
has a 2/2 dental formula, a single ventrointernal seta (three in himalaya), and small
pseudo-cornua (absent in himalaya). The larva of nepalensis can be differentiated
chiefly by the absence of a ventral spur on palpal segment III (present in himalaya).
Immature stages: Indian muntjac, chital deer, black buck, domestic zhum, sambar
deer, and from flag dragging.
Adults: Himalayan thar, barking deer, cattle, buffalo, sheep, goat, goral, chital
deer, sambar deer, chital deer, black buck, and from flag dragging.
India (Uttar Pradesh, Uttarakhand, Himachal Pradesh, West Bengal), Nepal.