Valid Names Results

Fragorbis pustulans (Green, 1905) (Eriococcidae: Fragorbis)

Nomenclatural History

• Sphaerococcus pustulans Green 1905b: 7. Type data: AUSTRALIA: Victoria, Myrniong, on Eucalyptus goniocalyx, by J. Lidgett. Lectotype, female, by subsequent designation (HardyGu2007,117-118). Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Illustr.
• Fragorbis pustulans (Green, 1905); Hardy & Gullan 2007: 117-118. change of combination Illustr.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• HardyGu2007: pp.109-116 ( Adult (F) ) [Key to the adult females of species of Fragorbis]

Remarks

• Systematics: Slide-mounted adult female with: enlarged setae absent; hair-like body setae scattered over both surfaces; numerous quinquelocular pores on both surfaces; legs small, but fully formed, hind pair noticeably larger than other; antennae 5-segmented, segments very short; anal ring very reduced but with pores and setae; macrotubular ducts present (Miller, 1999, personal observation). (Hardy & Gullan, 2007)
• Structure: Adult female: Body outline ovate; length 1.20-3.10 (2.0 for lectotype) mm, maximum width 0.99-2.56(2.11 for lectotype) mm. Eyes ca. 17µm wide. Antennae 3- to 5-segmented, 35-70 µm long; 3 hair-like setae on segment I, 2 hair-like seta on segment II, 2 hair-like setae on segment III, 1 fleshy seta on segment IV and ca. 6 hair-like setae and 3 fleshy setae on segment IV. Frontal lobes absent. Tentorial box 150-230 µm long, 137-178 µm wide, with anterior extensions each ca. 100 µm long. Labium 80-95 µm long, 92-133 µm wide. Spiracles 52-75 µm long, 30-50 µm wide across atrium. Legs moderately reduced; fore and mid legs: trochanter + femur 57-92 µm, tibia + tarsus 40-58 µm; hind legs: trochanter + femur 105-125 µm, tibia + tarsus 62-80 µm; claw 15-27 µm; tarsal digitules 20-30 µm long, claw digitules 15-20 µm long; translucent pores ca. 3 mm in diameter on hind coxa, ca. 1 mm in diameter on other segments of hind leg, ca. 30 pores on dorsal surface of hind coxa, ca. 25 pores on ventral surface of hind coxa, ca. 20 pores on dorsal surface of hind femur, ca. 10 pores on dorsal surface of hind tibia + tarsus. Anal ring divided into 3 or 5 fragments, with 6 anal ring setae 15-39 µm long, position of setae on ring fragments variable; anal opening 50-90 µm wide. Pair of caudal setae each ca. 35 µm long. Dorsum. Derm of dorsal disc rugose and sclerotic, may appear membranous in younger females. Dorsal setae 10-23 µm long. Macrotubular ducts ca. 14µm long, oral rim ca. 4 µm in diameter, sparse, confined to area near sclerotic disc (may be completely absent). Quinquelocular disc pores evenly distributed. Venter. Ventral setae 7-18 µm long. Macrotubular ducts absent. Quinquelocular disc pores dense and evenly distributed. (Hardy & Gullan, 2007)
• Biology: Female lives beneath flattish blister-like swellings on the bark surface. An isolated pustule measures 4-5 mm in diameter, is roughly circular, with a small median pore. The walls of the cell are stout, and of a corky nature. The cavity is comparatively small, and lined with a whitish film. When crowded, but pustules become confluent and lose their circular form. Adult female circular or broadly oval (Green, 1905b).
• General Remarks: Original description and illustration by Green (1905b). This species was moved into the Eriococcidae by Miller et al. (1998). Detailed description and illustration in Hardy & Gullan (2007).

Illustrations

Citations