126 NINETEENTH REPORT STATE ENTOMOLOGIST OF MINNESOTA—IQ22 
b. Secondary sensoria in migrant 50 or more, small and scattered; pulverutent 
glands massed in large areas on each side of the abdomen; cornicles 
cylindrical and -Aphis-likeses. 2... ae Genus AMPHICERCIDUS 38 
c. Secondary sensoria in migrant 40 or more, smail and scattered; pulveru- 
lent glands along the sides of the ebdomen; cornicles very short, not 
longer -thanswides tava cotetra keratoses wearers Genus GYPSOAPHIS 39 
37. Genus CHAITOPHOROIDES Mordwilko, 1908. Type: Apis 
lantanae Koch, 1854. Size large with the aspect of a Pterocommiuni; 
antennae with long, slender hairs ; cornicles rather long and cylindrical ; 
cauda triangular and Aphis-like with many scattered hairs. Found 
on tender twigs and leaves of various trees and woody plants. The 
following species are recorded from Minnesota: 
(25) CHAITOPHOROIDES MACULATA (Oestlund) 
Found on Cornus and Populus and sometimes on Salix. 
(26) A second species found on elm is imperfectly known and unde- 
scribed. Forms of this genus have in the past been more or less 
mixed with the Pterocommini, and will require an extended syn- 
onymical study to clear un, 
38. Genus AMPHICERCIDUS gen. nov. Type: Apis pulveru- 
lens Gillette, 1911. Third joint of the antennae rather long and pro- 
vided with numerous small sensoria (50 or more) in migrant; 
body strongly pulverulent, the glands massed along the sides of the 
abdomen. Found on the stem of wolfberry, close to the ground. The 
sexes appear late in September. One species is known: 
(27) AMPHICERCIDUS PULVERULENS (Gillette) 
Brownish; strongly pulverulent; on the stems of Symphoricarpus 
occidentalis. 
39. Genus GYPSOAPHIS gen. nov. Type: Aphis lonicerae 
Monell, 1879. The third joint of the antennae in migrant long and pro- 
vided with many small sensoria; cornicles short, not longer than broad ; 
body strongly pulverulent. Found on stalks and leaves of Lonicera 
glauca. One species is known: 
(28) GYPSOAPHIS LONICERAE (Monell) 
A large green form found on honeysuckle. 
40. The APHIS group. Abdomen broad and short, segments 6-8 
usually abruptly narrowed; cornicles cylindrical, or wider at base; 
reticulation on cornicles broken; sensilla of antennae short and spine- 
like; cauda short and triangular, or rather long, cylindrical, and 
pointed, with hairs showing tendency to be arranged in rows; spur of 
antennae always longer than the base; rostrum moderately long and 
a 
Se 
