Valid Names Results

Acanthococcus maximus (Foldi & Kozár, 2007) (Eriococcidae: Acanthococcus)

Nomenclatural History

• Eriococcus maximus Foldi & Kozár 2007: 56-58. Type data: VENEZUELA: Merida, nearLagunillas, on Psidium guajava (Myrtaxeae), 10/28/1984, by I Foldi.. Holotype, female, Type depository: Paris: Museum National d'Histoire naturelle, France; accepted valid name Illustr.
• Acanthococcus maximus (Foldi & Kozár, 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 maximus

Remarks

• Systematics: A. maximus is similar to E. perplexus Hempel, 1900, sharing with it a similar arrangement of dorsal spinose setae, the presence of frontal lobes and the large body size. However, E. perplexus has much smaller spines on the mid-dorsum of the posterior abdominal segments (each about 5 times shorter than the larger marginal spinose setae), whereas those in the position on E. maximus are only 2 times shorter than those on the margin. In addition, the coxal pores on A. maximus are larger and more abundant (about 40-45) than on E. perplexus, which has smaller and fewer pores (about 20). A. maximus also differs from E. perplexus in having a band of about 15-22 cruciform pores on each side between the anterior and posterior spiracles, whereas these are absent on E. perplexus. A. maximus differs from E. longisetosus in having short ventral hair-like setae; from H. paranaensis in the absence of groups of microtubular ducts on dorsum; from A. christopherus in the random distribution of spine-like setae on dorsum, and from A. venezuelaensis in the presence of frontal lobes and twice as many cruciform pores. (Foldi & Kozár, 2007)
• Structure: Adult female body elongate oval, 2.3-3.0 mm long, 2.0-2.1 mm wide. Antenna 7 segmented; antennal segments with few hair-like setae; segment III without setae; a sensory pore as usual on segment II; apical segment with setae plus 3 sensory falcate setae; 2 preapical segments each with a falcate sensory seta. Frontal lobes well developed. Eyes near margin on venter. Venter: Labium 3-segmented. Legs long; slaw digitules broadly knobbed. Coxae with line of microspines; metathoracic coxae wach with about 40-45 medium-sized translucent pores; femur with about 5-8 translucent pores dorsally at distal end; trochanter with two pores on each side. Claw with a denticle. Legs with few hair-like setae, trochanter with a short seta, and a longer seta; tarsus with one sensory pore. Disc pores, each 3 or 5 locular distributed in broad bands on abdomen and more scattered on other segments. Hair-like setae scattered mainly on submarginal areas, sparse, predominately on median and submedian areas; with 2-4 long setae on head. Microtubular duct absent. Macrotubular ducts of two sizes; both sparsely distributed on all segments. Cruciform pores along margin as far as abdominal segment VII posteriorly, and on submargin where about 15-22 cruciform pores connecting pro- and mesothoracic spiracles. Anal lobes each with 3 hair-like setae. Margin: Spinose setae along margin of venter similar to those dorsally, but smaller and straight. Dorsum: Dorsal spinose setae, strong, broad, predominantly straight, sometimes slightly curved, length variable, in a band along margin and submargin and in broad bands 2-3 seetae wide across all segments. Macrotubular ducts without a bifurcated opening, scattered among dorsal setae. Disc pores absent. Anal ring with pores and 8 hair-like setae. Anal lobes membranous, about as long as wide, each with two spinose setae along inner margin, and one seta on outer margin, similar in seize to those on dorsum. Suranal setae hair-like. Median sclerotised plate absent. (Foldi & Kozar, 2007)
• General Remarks: Detailed description and illustration in Foldi & Kozár (2007).

Illustrations

Citations