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Platytomus Mulsant 1842
Platytomus Mulsant 1842: 310.
Platytomus micros (Bates)
Photo by Paul Skelley.
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| Aphodiinae Overview | ||
| Psammodiini Key |
Type species. Platytomus sabulosus Mulsant 1842: 310, by monotypy.
Diagnosis. Body length 1.8-3.3 mm, elongate to weakly parallel-sided, reddish-brown to almost black, dorsal surfaces glabrous. Head surface granulate, frontal suture usually indistinct. Clypeus rounded each side of median emargination. Pronotum with anterior groove, some with second groove indicated by punctures. Elytra elongate, base margined; intervals convex; striae coarsely punctate. Metafemur elongate to moderately robust. Metatibia not or weakly curved, gradually widened at apex. Metatarsi weakly to strongly shortened; basal metatarsomere elongate, weakly widened to distinctly widened at apex.
Distribution. Widespread in New World, Africa, Europe to southeast Asia.
Composition. Worldwide, Platytomus contains approximately 25 species, 12 of which occur in the New World.
Platytomus atlanticus (Cartwright 1948: 138) [Pleurophorus], E-USA.
= Scarabaeus nanus Horn 1887: 96, in part [not Scarabaeus
nanus Degeer 1774: 318].
Platytomus caelicollis (Cartwright 1948: 134) [Pleurophorus], SE-USA.
Platytomus darwini (Cartwright 1970: 53) [Diastictus], Galapagos.
Platytomus freudei (Balthasar 1960: 7) [Diastictus], Brazil.
Platytomus gregalis (Cartwright 1948: 145) [Pleurophorus], Colombia.
Platytomus grisoli (Petrovitz 1942: 61) [Pleurophorus], Venezuela.
Platytomus hawaiiensis (Rakovic 1981: 24) [Diastictus], Hawaii- USA.
Platytomus longulus (Cartwright 1948: 143) [Pleurophorus], SE-USA to Bolivia and Argentina.
Platytomus micros (Bates 1887: 103) [Psammodius], SW-USA (+ FL-USA) to Central America.
= Scarabaeus nanus Horn 1887: 96, in part [not Scarabaeus
nanus Degeer 1774: 318].
= Pleurophorus batesi Arrow 1903: 514.
= Diastictus californicus Petrovitz 1963: 645.
Platytomus notialis (Cartwright 1948: 136) [Pleurophorus], S-Central USA.
Platytomus parvulus (Chevrolat 1864: 415) [Psammodius], W.Indies.
Platytomus tibialis (Fabricius 1798: 24) [Scarabaeus], Morocco, CA-USA.
= Psammodius grundeli Van Dyke 1918: 10.
= Psammodius insculptus Küster 1849: 49.
= Platytomus ovipennis Desbrochers des Loges 1884: 98.
= Platytomus sabulosus Mulsant 1842: 310.
Life History. Adults of a some species are collected at light. Other species have been be sifted from leaf litter.
Larvae. The larvae of P. longulus and P. tibials have been described by Ritcher (1966) and Lumaret and Lavalette (1996).
References:
Cartwright, O. L. 1948. The American species of Pleurophorus (Coleopera: Scarabaeidae). Transactions of the American Entomological Society 74: 131-145.
Gordon, R. D., and R. Pittino. 1992. Current status of the American genera and species of Psammodiini (Coleoptera: Scarabaeidae: Aphodiinae). Coleopterists Bulletin 46: 260-273.
Lumaret, J. P., and F. Lavalette. 1996. Biology and description of the larva of Platytomus tibialis (Coleoptera: Aphodiidae: Rhyssemina). Acta Societatis Zoologicae Bohemicae 60(4): 385‑389.
Ritcher, P.O. 1966. White grubs and their allies: A study of North American scarabaeoid larvae. Oregon State University Press, Corvallis, Oregon. Studies in Entomology 4: 219 pp.
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| Author: Paul Skelley Generated on: 09/MAY/08.....Last modified: 09/MAY/08 University of Nebraska State Museum - Division of Entomology |