42 BULLETIN 526, U. 5. DEPARTMENT OF AGBICULTUKE. 
Del Quei : - genus had his : as type. The corni- 
..:- species a] < be a little longer than those of the type 
of Van " nus. but in other respects the Bisects seem to 
be quite similar. VTe feel that they belong to the same genus. We 
are keeping this genus distinct from Crypt osiphuni. not only because 
of the minute cornicles in that genus but also on account of the 
peculiar head structure which is there seen. It is not typically Aphis- 
rracters. — Head ?ritiiout prominent antennal tubercles. Antenna? q{ six seg- 
ments. Fore Trings with the media thrice branched: hind wings with both : 
and cubitus present. Cornicles cylindrical. canda reduce I 
broad, short, rounded structure. 
Type- [fixed by Yarn : 1913 , ApTm lycfrnvKs L. 
Genus AXTTRAPHIS Del Guercio. 
Platen.. C-F. 
1907. , "-. :'-5 Del Guer a . 4, p. 190. 
191-3. Brachycaudus Van der 7: L voor Ent., v. 56, p. 97. 
1913. anderGoot. Tijd.voorE-:. , p. 98. 
1913. Semiaphis Van der Goot, Tijd. vwh 56, p. 105. 
1917. ~~ : ibuam Matsni^ an foam Agr. 1 :.:.: "r rUnj | -. B, p. 392. 
1918. 5 fa ppapMs Matsumura. T Lfiist. Soc. ."-:.: : 
In 1907 Del Guercio erected the genus Anuraphis in which were 
included ' Koch, lappae Koch, vridis Del Guercio. 1\ Kalt., 
tidis Koch, centaureae Koch, prjinicola Kalt.. tragopogonis Kalt.. 
le Koch, and persieae Boyer. 
These species, with the exception of lappae and tragopogoms which 
q to belong to Aphis, have a broadly and somewhat abruptly 
conical cauda unlit .at of the genus Aphis. In 10 13. Van der 
". erected his genus Brachycaudus with one of these si: - - 
. as type without referring any of the species to Anuraphis at all. 
It is evident that Brachycaudus is a synonym of Anuraphis. At the 
same time he erected the genus Seniiaphis with ca ■:■■■: K TP e - 
A stu ' his species, as seen in Plate VI. makes it evident that this 
is a - same general type. Seniiaphis thus b< 
synonym of Anuraphis. Based on the minute tubercles, particularly 
on the head and caudal portion of the abdomen. Van der G 
3d the genus Dentatus with sorbi Kalt, as type. Apart from 
these tubercles sorbi is in tl ter of the cauda. etc.. a 
Anuraphis. In our American rosy aphis, a species very similar to 
, these tubercles are absent in many individuals, and in the fall 
migrants the caudal ones are nearly always absent. If this char, 
retained, there; (J species would belong iu one gem 
spring migrant is concerned, and in another genus when 
fall migrant is i sidered. Dentatns. therefore, becomes also 
a synonym of Anuraphis. 
