Valid Names Results

Antecerococcus alluaudi (Marchal, 1904) (Cerococcidae: Antecerococcus)

Nomenclatural History

• Amelococcus alluaudi Marchal 1904a: 557-561. Type data: MADAGASCAR: on Euphorbia intisy, by M. Alluaud. Lectotype, female, by subsequent designation (LambdiKo1977a,50-53). Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Illustr.
• Cerococcus alluaudi (Marchal, 1904); Lambdin & Kosztarab 1977a: 50. change of combination
• Antecerococcus alluaudi (Marchal, 1904); Hodgson & Williams 2016: 27-29. change of combination Notes: 4 paralectotype slides with “larvae”. MNHN: 1/1paralectotype adf (MNHN 5556-1) and 1/10 first-instar nymphs; MNHN 5556-2).

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• HodgsoWi2016: pp.20 ( Adult (F) ) [Species of Antecerococcus]
• LambdiKo1977a: pp.39 ( Adult (F) ) [Species of Cerococcus] Key as: Cerococcus alluaudi

Remarks

• Systematics: Cerococcus alluaudi can be distinguished by the following characters: large 8-shaped pores in 1 median cephalothoracic cluster with 3 transverse bands extending laterally; cribriform plates in segmental clusters with 2 or 3 plates per cluster; multilocular pores widely spaced in 6 abdominal rows; vulva 2-5 times larger than anal plates (Lambdin & Kosztarab, 1977a).
• Structure: Adult female body is subcircular with slightly pronounced anal lobes (Lambdin & Kosztarab, 1977a). Mounted female body large, roundly pear-shaped, about as wide as long, with only anal lobes extending posteriorly; length 3.1 mm, width 2.9 mm. Derm with numerous, large oval areolations, most with a tubular duct in center. The redescription by Hodgson & Williams, 2016, is very similar to that of Lambdin and Kosztarab (1977) except that Lambdin & Kosztarab do not mention the areolations in the derm and, whilst the cribriform plates are in transverse rows, it was very difficult to determine how many rows; there could be as many as seven. They considered that the most posterior row is on abdominal segment IV and, if there are six or seven rows and, if they are segmentally arranged, this would mean the most anterior row would probably be on the thorax. However, Hodgson & Williams indicate that the most anterior pores appear to be posterior to the metathoracic leg stubs, suggesting that perhaps the rows of cribriform plates are all on the abdomen and therefore not segmentally arranged. In addition, Lambdin and Kosztarab (1977) considered that there were four sizes of 8-shaped pores on the dorsum but, on the only specimen available to Hodgson & Williams, although the size of the largest pores do vary quite a lot (see size range above), the size of the large pores do not fall into two groups as there are intermediates. They consider there are only really three sizes of 8-shaped pores on the dorsum. The following combination of character-states diagnoses A. alluaudi: (i) dorsum with distinct areolations, each usually with a tubular duct; (ii) 8-shaped pores of three sizes, largest very sparse but present throughout; (iii) large and intermediate-sized 8-shaped pores about equally frequent in a swirl-like pattern throughout head, thorax and anterior abdominal segments; (iv) each margin of posterior abdominal segments with 8-11 large 8-shaped pores; (v) cribriform plates small, dispersed over anterior abdominal segments; (vi) stigmatic pore bands with 2-4 small 8-shaped pores in each apical group; (vii) posterior stigmatic pore bands not bifurcated; (viii) leg stubs present; (ix) multilocular disc-pores very sparse, in six or seven transverse bands, each 1 pore wide, absent from metathorax, and (x) antennae unsegmented without either an apical conical extension or a setal cavity.
• General Remarks: Detailed redescription and illustration by Lambdin & Kosztarab (1977a).

Illustrations

Citations