Morphology of the males of seven species of Ortheziidae (Hemiptera: Coccoidea)
Author
Vea, Isabelle M.
text
American Museum Novitates
2014
2014-08-29
2014
3812
1
36
http://www.bioone.org/doi/abs/10.1206/3812.1
journal article
5856
10.1206/3812.1
1a912893-6f4e-4800-af2a-8972614eb929
0003-0082
4598258
Orthezia newcomeri
Morrison
Figures 3C
,
8
Orthezia newcomeri
Morrison, 1952: 37
.
MATERIAL EXAMINED:
USA
,
California
,
Sacramento
,
on
Rubus
sp.,
16. v. 1963
,
R
.
E. Wilkey
coll., deposited at the
USNM
: 1/1 ad male (in good condition)
.
DIAGNOSIS: Very large body, more than
2.5 mm
; large number of loculate pores on dorsal and ventral abdominal segments.
FIGURE 7.
Orthezia annae
Cockerell.
Adult male.
A.
Antennal apical segment.
B.
Tibiotarsal connection.
C.
Claw. Because the specimens were uncleared, this figure illustrates only those structures visible both under the light microscope and in the confocal images.
DESCRIPTION (as for family description unless otherwise stated):
Mounted material:
Very large, total body length
2.6 mm
. Antennae exceptionally long, nearly 1.7 times total body length, most segments approximately subequal in length.
lp
each 11–
7 µm
wide, with 4–6 loculi, present on both dorsal and ventral surfaces;
smp
each about
3–4 µm
wide: sparsely present throughout body.
Head:
Width
435 µm
, length
400 µm
. Dorsally, ventral arm strong, not bifurcated posteriorly; dorsal arm thinner and fading posteriorly, but with 2 short branches medially. Dorsomedial part of epicranium with (on each side) 2 or 3
hs
of rather variable length (
40–60 µm
), all flagellate, plus 1 or 2
lp
and 2 or 3
mcp
. Laterally, compound eye about
160–175 µm
long, with about 120 ommatidia; ocelli
30 µm
wide. Ventral head setae with (on each side) 12 or 13
hs
, 4–6
lp
+ 6–10
mcp
; ventral plate with 2 long
hs
and 2
lp
on each side.
Antenna:
Length
4.5 mm
(ratio of total body length to antennal length 1:1.73). Scape:
150 µm
long,
120 µm
wide, each with 7 or 8 short
hs
+ 1 or 2 minute pores ventrally and 4–6
hs
dorsally. Pedicel: length
110–120 µm
, width
70 µm
; each with 4 or 5
fs
, 0 or 1
hs
, 2 or 3 minute pores ventrally. Segments III–IX: those proximally about
50 µm
wide, apical segment only
25 µm
wide:
fs
between
25–40 µm
on all segments, becoming shorter toward apical segment. Lengths of segments (µm): III 633–638; IV 719–727; V 667–684; VI 646–656; VII 601–626 and VIII 474–481; approximate number of setae per segment: III–VIII with about 70–90
fs
+ 2–9
hs
. Segment IX elongate: length
472–480 µm
; with about 70
fs
+ 1 strong terminal bristle, about
25 µm
long.
Thorax:
Prothorax:
dorsally, posttergites not identified. Pronotal setae: dorsally, 1 or 2
hs
anterior propleural setae + 3 or 4
lp
+ about 15 minute pores anteriorly on shoulder; also with a group of posterior propleural setae and pores just anterior to each prealare, extending ventrally and joining antemesospiracular setae: 1 or 2
hs
, 15
lp
+ about 20
smp
. Ventrally, prosternum with a distinct sclerotized median ridge, with 4
hs
prosternal setae + 4
lp
+ 5
smp
on each side. Anteprosternal setae absent. Antemesospiracular setae fused with posterior propleural setae.
Mesothorax:
dorsally, prescutum quite large, probably rather convex,
230 µm
long,
130 µm
wide; distance between prescutum and scutellum medially
130 µm
; scutal setae: with about 4
hs
+ 1
lp
+ 15 minute pores medially posterior to prescutum and with 1 hs near each lateral margin. Scutellum,
165 µm
wide,
135 µm
long; without setae but with 4
lp
+ 4
smp
; postnotal apophyses well developed. Laterally, tegula with 2 tegular setae + 5
smp
. Mesothoracic spiracle: peritreme almost round, width about
50 µm
. Ventrally, basisternum
525 µm
wide,
265 µm
long; with 7 short
hs
basisternal setae, distributed more or less throughout.
Metathorax:
Dorsally, metatergal setae in a diffuse band of 4
hs
+ 6
lp
+ 3
smp
. Dorsospiracular setae: 3
hs
+ 2
lp
+ 9
smp
. Laterally, dorsal part of metapleural ridge well developed. Ventrally, metasternum sclerotized with 3
hs
+ 5
lp
+ 10
smp
on each side; with 1
hs
anterior metasternal setae and 1 or 2
hs
posterior metasternal setae. Metathoracic spiracle: peritreme almost round, width
50 µm
.
Wings:
Forewing 3.0 mm long, about
1.2 mm
wide (ratio of length to width 1:0.39; ratio of total body length to wing length 1:1.15; with subcostal ridge extending to less than ¾ of wing length, cubital ridge starting 1/8 of wing base; with 4–6 alar setae and a line of at least 30–34 circular sensoria along posterior margin of subcostal ridge, extending almost to wing tip; hamulohalteres about
315 µm
long,
38 µm
wide, each with 3 apical hamuli, each
90–95 µm
long.
Legs:
Coxae: I 205–215; II 220–240; III
225–230 µm
long; coxa III with about 5 setae + 3
smp
. Trochanter + femur: I 865; II 750–755; III
825–845 µm
long; trochanter III with about 5 setae; femur III with about 65–70 setae (ventral ones becoming spurlike close to tibia) + 25
smp
. Tibiae:
I 1162
–1183;
II 1021
–1059;
III
1173
–1176 µm; tibia III with a total of about 100 setae, becoming spurlike on distal half to two-thirds, particular on ventral side + 13
smp
; each distal spur about
40 µm
long. Tarsi: I 290; II 287–300; III
282–294 µm
long (ratio of length of tibia III to length of tarsus III 1:0.25); tarsus III with about 40 setae. Claws fairly long and thin, much longer than width of tarsus (each tarsus about
30 µm
long), length: III
75 µm
; claw digitules both short and setose.
FIGURE 8.
Orthezia newcomeri
Morrison.
Adult male.
A.
Antennal apical seta.
B.
Tibiotarsal connection.
C.
Claw.
D1.
Loculate pore with four loculi.
D2.
Loculate pore with five loculi.
D3.
Loculate pore with six loculi.
E.
Tubular ducts with two types of peripheral setae.
F.
Small locular pores.
G.
Penial sheath.
Abdomen:
Segments I–VII: lp
present on both tergites and sternites, most abundant on sternites II–VI; also fairly numerous on all pleurites. Tubular ducts on a single sclerotized plate across tergite VII, each duct
15 µm
wide, surrounded anteriorly by fleshy and flagellate setae of two sizes of about 10–15 and
50–65 µm
long. Dorsal abdominal setae and pores (totals): segments I–V: 2–4
hs
+ 20–30
lp
+10
smp
; VI 3
hs
+ 22
lp
somewhat fusing with the pleural
lp
+ about 15
smp
; VII about 70
fs
distributed on anterior margin of tubular duct plate, 77 tubular ducts and many
smp
. Pleural setae: dorso- and ventropleural setae combined on each side: I–VII 4 or 5
hs
+ 18–25
lp
+ 15
smp
; some setae rather long. Ventral abdominal setae mostly rather like
fs
, each
34–38 µm
long (totals): I 2 setae; II 2 setae, 6
lp
+ 8
smp
; III–VI about 12 setae, 15–18
lp
+ 15
smp
; VII 21–25 setae, 5
hs
, 0
lp
+ 0
smp
. Abdominal spiracles on pleurites I–VIII, each peritreme about
10 µm
wide.
Segment VIII:
tergite with 1 pair of
hs
dorsal abdominal setae, about 110 small locular pores (different from
lp
on rest of abdomen) and many
smp
; sternite with 25 ventral abdominal setae but no pores; margin rounded, with 3
hs
pleural setae, 0
lp
+ 6
smp
.
Genital segment:
Anus large (
63 µm
wide), with a lightly sclerotized area along anterior margin; with 2
hs
on tergite IX; sternite IX with 10 setae. Penial sheath narrower than posterior margin of abdominal segment VIII, length without segment IX
233 µm
, with segment IX
300 µm
; greatest width
322 µm
; ventrally and laterally with a group of 10 or 11
hs
on each side of anterior end of penial sheath; posteriorly, nearer apex, without minute setae on either surface. Aedeagus of peculiar shape (uncertain if due to preparation), parallel sided anteriorly but enlarged at midlength tapering to a pointed tip which extends beyond apex of penial sheath; about
257 µm
long.
COMMENTS: The specimen studied here is particularly large, generally more sclerotized and with a larger number of loculate pores compared to other
Ortheziidae
. Additionally, the body is covered with small sclerotized dermal structures, different from any small pores. Finally, the aedeagus shape differs from other genera, tapering at midlength and becoming pointed apically. However, this might be an artifact of slide-mount preparation.