Pleocoma hirticollis vandykei
Linsley, 1938
Pleocoma hirticollis vandykei is a of in the . It is one of several subspecies within the P. hirticollis, which belongs to a of to western North America. Members of Pleocoma are known for their habits and during autumn rains. This subspecies was described by Linsley in 1938 and is currently accepted as valid.
Pronunciation
How to pronounce Pleocoma hirticollis vandykei: //plaɪ.oʊˈkoʊmə hɪrˈtɪkəlɪs vænˈdaɪki//
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Identification
As a of P. hirticollis, distinguishing P. h. vandykei from other subspecies requires examination of subtle morphological characters, likely involving differences in setal , pronotal shape, or male . The P. hirticollis as a whole is characterized by males with , fan-like and a densely . Females are flightless and have reduced , exposing several abdominal . Specific diagnostic features for vandykei remain undocumented in widely accessible sources.
Distribution
North America; precise range within the distribution of P. hirticollis is not well documented in available sources, though the parent occurs in California and Oregon.
Seasonality
have been observed in October, consistent with the autumn pattern typical of Pleocoma following rainfall events.
Life Cycle
with larval development extending over multiple years underground. are and feed on decaying matter and roots. are short-lived and do not feed.
Behavior
are or and emerge during or after autumn rains. Males in search of females, which remain in burrows near the soil surface. Mating occurs in female burrows.
Ecological Role
contribute to soil aeration and through their feeding activities. serve as a food source for vertebrate during their brief above-ground period.
Human Relevance
No direct economic importance. Occasionally encountered by and naturalists during autumn fieldwork. The Pleocoma is of biogeographic interest due to its relictual distribution and phylogenetic position within .
Similar Taxa
- Pleocoma hirticollis hirticollisNominate ; distinguished by subtle morphological differences in setation and possibly male , requiring detailed examination.
- Other Pleocoma speciesOther in the differ in pronotal setal patterns, antennal structure, and geographic distribution; precise identification requires reference to original descriptions and revisionary works.
More Details
Taxonomic note
The was named in honor of Dr. Edwin C. Van Dyke, a prominent . The contains only the Pleocoma, comprising approximately 30 restricted to western North America, with highest diversity in California.