Valid Names Results

Penthococcus nartshukae Danzig, 1972 (Pseudococcidae: Penthococcus)

Nomenclatural History

• Penthococcus nartshukae Danzig 1972b: 329. Type data: MONGOLIA: Gobi-Altai Aimak, on legumineous plant. Holotype, female, Type depository: St. Petersburg: Zoological Museum, Academy of Science, Russia; accepted valid name Illustr.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• DanzigGa2015: pp.99-106 ( Adult (F) ) [Palaearctic Trionymus species]

Remarks

• Systematics: The comprehensive book of Danzig and Gavrilov (2015) examines many of the character systems that have become standard in certain taxonomic analyses worldwide. Some of their conclusions are in direct contrast to the general thinking of past coccidologists. They question the utility of such characters as the presence or absence of the anal bar, the cluster of multilocular pores and tubular ducts on the margin of the prothorax, the number of cerarii, the presence of auxiliary setae in the cerarii, the presence of black pigments in the body. Because of their different interpretation of the character systems, there are a number of fairly extensive synonymies. Although they have presented their rationales for making these changes, we hesitate to accept all of them without more definitive information. It would be highly useful to have integrated morphological and molecular analyses before implementing synonymies. Practically, once species have been synonymized, the information and literature about each synonym becomes more and more difficult to trace over time. Thus, it is important to be as certain as possible about synonymy actions. Danzig & Gavrilov-Zimin (2015) rejected the use of the character that this species had a black pigment when placed in ethanol and potash and placed it in Trionymus. Therefore, we are keeping nartshukae in the genus Penthococcus in ScaleNet at this time.
• Structure: Female body broadly oval, up to 2.5 mm long, black after placing in ethanol and potash. Anennae 8-segmented. Legs small; hind coxae with translucent pores. Anal apparatus complete. Both pairs of ostioles present. Circuli absent. Multilocular pores scattered on entire body surface. Trilocular pores scattered on dorsum, few in marginal zone of venter, absent or occasionally present in medial zone of venter. (Danzig & Gavrilov-Zimin, 2015)
• Biology: Living on roots of its host plant.
• General Remarks: Good description and illustration of the adult female given by Danzig (1972b). Good description of the adult female given by Tang (1992).

Illustrations

Citations