Description of a new monospecific genus of South African Trichiina, with a key to the related genera (Coleoptera: Scarabaeidae)
Author
Ricchiardi, Enrico
text
European Journal of Taxonomy
2015
2015-12-07
159
1
6
journal article
22383
10.5852/ejt.2015.159
7a4d11d0-f4de-453e-8457-49ae72b545d7
2118-9773
3788070
2971B804-8AA2-4713-8C66-756640D0331A
Genus
Pseudostegopterus
gen. nov.
urn:lsid:zoobank.org:act:
3FEB8498-B2A1-4136-904A-7EB7F37CE568
Type
species
Pseudostegopterus melolonthinoides
gen. et sp. nov.
Diagnosis
This new genus differs from all other
Trichiini
genera occurring in
South Africa
by the following combination of diagnostic characters: 1) The eye-canthus covers about ½ of the ocular hemisphere; 2) the frons and vertex are covered with thick, long, inclined, testaceous setae; 3) the length of the pronotum is <0.5 times that of the elytra; 4) the posterior pronotal margin does not exhibit any ridge centrally; 5) the pronotal surface is generally covered with thick, long, inclined, testaceous setae; 6) the pronotal posterior corners are obtuse; 7) the elytral apex is rounded; 8) the elytral lateral ridge is visible on the entire lateral border; 9) the elytra cover the entire pygidium, except its very apex; 10) the length of protarsal claws is 0.70–0.90 times that of the last tarsomere; 11) the mesotibia are slightly curved outwardly; 12) the metatibia exhibits two spurs; 13) the first metatarsal segment is as long as the second or shorter; 14) the metatibial apex is strongly enlarged; 15) the internal corner of the metatibial apex is deprived of long spines; 16) the mesosternal process is absent; 17) the metafemur width is 0.4–0.45 times its length; 18) the males are fully winged.
Etymology
The name comes from its superficial resemblance to some representatives of the genus
Stegopterus
Burmeister & Schaum, 1840
.