Valid Names Results
Protodiaspis parvula Cockerell, 1898 (Diaspididae: Protodiaspis)Nomenclatural History
- Protodiaspis parvulus Cockerell 1898j: 428-429. Type data: MEXICO: Mexico State, Amecameca, on Quercus sp., 06/06/1897, by Koebele. Syntypes, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name
- Protodiaspis parvula Cockerell, 1898; Miller, D.R., Gimpel, M.E. & Williams, D.J. 2003: 947. emendation that is justified
Common Names
Ecological Associates
Hosts:
Families: 2 | Genera: 2
- Betulaceae
- Alnus jorullensis | Ferris1955b | (= Alnus firmifolia)
- Fagaceae
- Quercus | Cocker1898j
Geographic Distribution
Countries: 1
- Mexico | Ferris1937
- Mexico State | Cocker1898j
Keys
- Ferris1942: pp.SIV-446:61 ( Adult (F) ) [Key to species of Protodiaspis]
- MacGil1921: pp.365 ( Adult (F) ) [Species of Protodiaspis]
Remarks
- Systematics: Protodiaspis parvula is very similar to P. agrifoliae, differing chiefly in the absence of circumgenital pores. The dorsum of the pygidium possesses numerous small ducts, as in the latter species (Ferris, 1920).
- Structure: Female scale on bark of host, exposed or in cracks, consisting of a mass of loosely consolidated or of fluffy white wax in which the exuviae are loosely imbedded. Scale of male minute, white, definitely formed or partially composed of threads of wax, pale exuviae at one end. Slide-mounted adult female broadly oval or nearly circular, derm sufficiently sclerotic to retain the segmental lines but not pigmented except perhaps slightly so at the anterior end, quite uniformly beset both dorsally and ventrally with small ducts. Pygidium small and short, non-sclerotic except for an unusually conspicuous ring about the anus, with few dorsal ducts (Ferris, 1937).
- General Remarks: Detailed description and illustration by Ferris (1937).
Illustrations
Citations
- Borchs1966: catalog, distribution, host, taxonomy, 153
- BrownMc1962: taxonomy, 152
- Cocker1898j: description, distribution, host, taxonomy, 428-429
- Cocker1899a: taxonomy, 398
- Cocker1899n: distribution, 33
- Fernal1903b: distribution, host, taxonomy, 213
- Ferris1919a: taxonomy, 46
- Ferris1920: distribution, host, taxonomy, 29, 30
- Ferris1936a: taxonomy, 23
- Ferris1937: description, distribution, host, illustration, taxonomy, SI-105
- Ferris1937a: illustration, 24
- Ferris1942: taxonomy, SIV-446:61
- Ferris1955b: distribution, host, 24
- Hoke1928: taxonomy, 674
- Lindin1932f: taxonomy, 186
- Lindin1937: taxonomy, 193
- MacGil1921: distribution, host, taxonomy, 365
- MillerGiWi2003: taxonomy, 947
- Takagi1993: taxonomy, 15