Biology Reference

In-Depth Information

and III are small, triangular, sharply pointed; spur of coxa IV is very long, dagger-like,

directed posteriorly, and extending up to or beyond the level of anal opening.

Female (
Figures 2.56 and 2.57
)
47,104,127

The female is 2.15

1.80 mm wide.

Capitulum: Basis capitulum is dorsally almost twice as wide as long; margins

are as in male; cornua are slightly shorter than that of male, one-third as long as

the base of basis capitulum; porose areas are oval, wide apart by almost twice

their largest diameter. Palpi are as in male except segment III dorsally with a well-

developed, triangular, posteriorly directed spur at its posterior margin. Hypostome

dental formula is 4/4, with 11

3.00 mm long, 1.35

13 denticles per file.

Scutum: Scutum is sub-circular in outline. Cervical grooves are deep, narrow,

sub-parallel, and extending up to mid-length of scutum. Punctations are moderate

in size, deep, and uniformly distributed. Marginal grooves are long, narrow, and

enclosing first two festoons. Festoons number 11. Genital area is circular in outline;

operculum is broadly U-shaped.

Legs: Legs are slightly narrower than in males. Coxa I is with a long, bluntly

pointed spur; II to IV are with small triangular, bluntly pointed spurs.

Nymph(
Figures 2.56 and 2.57
)
47

Capitulum: Basis capitulum is approximately 2 times as wide as long. Cornua are

triangular, approximately one-third as long as basis capitulum. Posterior margin

between cornua is straight. Hypostome is clavate, extends slightly beyond the level

of palpi, approximately 2.5 times as long as wide; dental formula is 2/2, sometimes

3/3 apically, with eight to ten denticles per file.

Scutum: Cervical grooves are deep anteriorly, parallel up to mid-length of scu-

tum, then divergent and shallow posteriorly. Punctations are approximately 12 each

with a minute seta in addition to six pairs of sensilli. Marginal grooves are long,

deep, and enclosing first two festoons. Festoons number 11, each bearing a seta

dorsally and ventrally except the median.

Legs: Legs are moderately long and stout. Coxa I is with a distinct triangular

pointed spur; II and III are each with ridge-like spur.

Larva (
Figures 2.56 and 2.57
)
47

Capitulum: Basis capitulum is dorsally approximately twice as broad as long; cor-

nua are one-fourth as long as basis capituli. Each palpus is approximately 1.3 times

as long as wide, conical in outline. Hypostome is with seven to eight denticles per

file.

Scutum: Scutum is wider than long, outline trapezoid, with moderate anterior

emargination, and posterior margin broadly rounded; cervical grooves are sub-

parallel, reaching mid-length of scutum. Punctations are six in number, each with a

single seta, in addition to three pairs of sensilli. Festoons number 11.