Orthezia annae Cockerell

Vea, Isabelle M., 2014, Morphology of the males of seven species of Ortheziidae (Hemiptera: Coccoidea), American Museum Novitates 2014 (3812), pp. 1-36 : 18-20

Orthezia annae Cockerell

Figures 6, 7

Orthezia annae Cockerell, 1893: 403–404 .

MATERIAL EXAMINED: U.S.A., New Mexico, on “ Atriplex ,” 11. i. 1897, Townsend coll., deposited at USMN: 1/2 ad males (in good condition but uncleared, description of specimens based on confocal microscope images and thus some pores and setae not observable and mentioned as such) .

DIAGNOSIS: Orthezia annae differs from other Orthezia spp. in having additional longer antennal setae, some on legs, similar to those on antennal setae, and fewer tubular ducts than on other Orthezia spp.

DESCRIPTION (as for family description unless otherwise stated): Mounted material: Body large, total body length 1.5–1.65 mm. Antennae 1.3 times total body length, most segments subequal in length; fs present on antennae.

Head: Width 300 µm, length 250 µm. Dorsally, dorsomedial part of epicranium, with at least 4 or 5 hs; lp and smp not observable. Laterally, compound eye about 115 µm long, with about 100 ommatidia; ocelli 23–30 µm wide. Ventrally, ventromedial part of epicranium, with ventral head sclerotized lateral margins; setae and pores not observable. Wings: Forewing 1.9–2.0 µm long, about 638–796 µm wide (ratio of length to width 1:0.37; ratio of total body length to wing length 1:1.23), base of wing especially narrow, with subcostal ridge extending to less than ¾ of wing length; cubital ridge starting 1/8 of wing base; without alar setae; circular sensoria along posterior margin of subcostal ridge detected, but number unclear; sensoria extending to ¾ of wing length to where subcotal ridge disappears. Hamulohaltere 225 µm long, 30 µm wide; with 2 apical hamuli each 55 µm long. Legs: Leg setae 13–20 µm long but with additional, significantly longer, fs ventrally on femur and tarsus, and on both sides of tibia (30–40 µm long). Coxae: I 124–147; II 120–152; III 131–140 µm long; coxa III with at least 4 setae. Trochanter + femur: I 473–506; II 374–411; III 608–704 µm long; trochanter III with about 3 hs; each trochanter with 3 campaniform sensilla arranged in a line on each side; femur III with about 35 short setae + 4–6 long setae ventrally; also 7 or 8 longer fs on ventral side of femur among shorter setae. e I 585–649; II 527–562; III 608–704 µm; tibia III with a total of about 100 setae including long setae on both sides of tibia; each distal spur 23–25 µm long. Tarsi: I 164–193; II 142–180; III 148–214 µm long (ratio of length of tibia III to length of tarsus III 1:0.26); tarsus III with about 23–30 spurlike setae and 2 or 3 long setae ventrally; tarsal digitules very short and setose. Claws fairly long and thin, much longer than width of tarsus (each tarsus about 15 µm long), held at a distinct angle to tarsus, each with 1 small denticle; length: III 40 µm; claw digitules both short and setose.

Abdomen: Segments I–VII: Setae and lp detected on pleurites (number unknown) but not observable on sternites and tergites. Tubular ducts present in a band of about 20 ducts across tergite VII, each duct 10 µm wide, 20 µm deep. Abdominal spiracles present on anterodorsal part of at least pleurites II–VII. Segment VIII: tergite with 1 or 2 pairs of hs dorsal abdominal setae, small locular pores numerous, but exact number unknown; sternite with at least 6 setae (probably more but not observable) but no pores; margin rounded, with 2–4 hs pleural setae. With a pair of abdominal spiracles similar to those on more anterior abdominal segments. Genital segment: Anus large (40 µm wide). Penial sheath as broad as posterior margin of abdominal segment VIII, short, triangular, and blunt; length without segment IX 220 µm, with segment IX 281 µm; greatest width 140 µm; ventrally and laterally with a group of about 15 long hs (each 45 µm long) on each side of anterior end of penial sheath.

COMMENTS: Despite the lack of resolution for some setae and pore distribution, O. annae is particular for the presence of longer setae on the legs (fig. 7), among the setae present in other Ortheziidae species.