Sitobion dorsatum Richards 1967, Richards, 1967

Victor, Eastop, F. & Blackman, Roger L., 2005, Some new synonyms in Aphididae (Hemiptera: Sternorrhyncha), Zootaxa 1089, pp. 1-36: 31

publication ID

http://doi.org/ 10.5281/zenodo.273344

persistent identifier

http://treatment.plazi.org/id/6946AD0A-913D-0759-FEA0-FE85FCF602EB

treatment provided by

Plazi

scientific name

Sitobion dorsatum Richards 1967
status

 

Sitobion dorsatum Richards 1967   to Aulacorthum  

This species was described in Aulacorthum   but transferred to Sitobion   by Eastop and Hille Ris Lambers (1976). The dorsal cuticle is sclerotic as in Sitobion   and the siphunculi have several rows of subapical reticulation, but these features are also found in some Aulacorthum   . However unlike any Sitobion   the antennal tubercles are very well developed and steep­sided, and the ventral side of the head is spiculose. The karyotype (three samples collected by Cho­kai Chan), is 2 n= 12, commonly found in Aulacorthum   , whereas most Sitobion   have 2 n= 18. The alata, uncharacteristically for both genera, has a dark dorsal abdominal patch, which might indicate a closer affinity to Neomyzus   , except that the hind tibiae are not spinulose. We conclude that this species should be returned to Aulacorthum   , in spite of some features atypical of that genus.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Aphidomorpha

Family

Aphididae

Genus

Sitobion