Valid Names Results

Acanthococcus longisetosus (Foldi & Kozar, 2007) (Eriococcidae: Acanthococcus)

Nomenclatural History

• Eriococcus longisetosus Foldi & Kozar 2007: 54-56. Type data: BRAZIL: Rio Grande do Sul, Itaimbézinho, Parc national de Asparados, on Annona muricata (Annonaccae), 11/16/1985, by I. Foldi. Holotype, female, Type depository: Paris: Museum National d'Histoire naturelle, France; accepted valid name Illustr.
• Acanthococcus longisetosus (Foldi & Kozar, 2007); Kozár & Konczné Benedicty 2008: 143. change of combination

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• GonzalClJu2020: pp.7-8 ( Adult (F) ) [Acanthococcus species from Brazil]
• FoldiKo2007: pp.62 ( Adult (F) ) [Key to species of Eriococcus discussed here from South America] Key as: Eriococcus longisetosus

Remarks

• Systematics: A. longisetosus differs from all known species of Eriococcus and Acanthococcus in having abundant strong, long hair-like setae medially on venter of all segments. there are some dimilarities with A. perplexus (Hempel, 1900) and A. jorgenseni (Morrison, 1919) in the arrangement of the dorsal spines and the large number of pores on each posterior coxa (110-120). However, A. longisetosus differs from E. perplexus in the absence of cruciform pores on the most posterior abdominal segments of the venter, and in having many fewer (0-2) ventral submarginal spinose setae (3-5 present on A. jorgenseni). (Foldi & Kozar, 2007)
• Structure: Adult female body outline elongate oval, 2.33 mm long, 1.37 mm wide. Antennae 7 segmented, antennal segments with few hair-like setae, segment III without setae; apical segment with long seta plus three sensory falcate setae. Frontal lobes absent. Eyes near margin on venter. Venter: Labium 3-segmented. Legs well developed. Tarsal digitules knobbed; claw digitules slightly knobbed. Metathoracic coxae with 110-120 translucent pores; femur with about 14-21 translucent pores dorsally at distal end; trochanter with two sensory pores on each side, claw with a denticle. Legs with few hair-like setae, trochanteral seta longest, tarsus with one sensory pore. Disc pores each with 5 loculi, distributed in bands on posterior 4 abdominal segments and scattered elsewhere on rest of abdomen, thorax and head. Long hair-like setae distributed mainly on median and submedian regions; shorter setae in a submarginal band. Microtubular duct absent. Macrotubular ducts of one size sparse throughout. Sessile pores mostly in a sparse submarginal band, absent on last three abdominal segments. Anal lobes each with 3 hair-like setae. Margin: Ventral marginal spinose setae similar to those on dorsum but slightly smaller, sparsely distributed along margin as follows: with a small group on head, with a total of about 7 on thoracle segments, and with 2 spinose setae on abdomen; absent from margins of posterior four abdominal segments. Dorsum: Dorsal spinose setae abundant in a dense group on hear, in a broad band on each thorcic segment, and in a transverse segmental band 2-3 setae wide on each abdominal segment but absent from segment VIII. Macrotubular ducts sparsely distributed throughou. Microtubular ducts scattered among dorsal setae and a microtubular duct present near each dorsal spinose seta. Disc pores absent. Anal ring with 8 hair-like setae. anal lobes about as long as wide, membranous, each with two spinose setae along outer margin and one spinose seta on inner margin, similar to those on dorsum. Suranal setae hai-like. Median sclerotised plate absent. (Foldi & Kozár, 2007)
• General Remarks: Detailed description and illustration in Foldi & Kozár. (2007)

Illustrations

Citations