SUBFAMILY APHINAE 73 
Type. Davis Collection. 
Chief Distinguishing Characters. Characteristic dusky pattern on fore wing, 
dusky color of venter and of cornicle, number of sensoria (6-10) on III of 
alate vivipara and length of unguis (2 - 2.5 times length of base of VI). 
Myzocallis maureri Swain 
Fig. 74. Myzocallis maureri 
Myzocallis maureri Swain, 1918b:4. 
Myzocallis kiowanica Hottes, 1933:8; Palmer, 1936:732 (new synonymy). 
Myzocallis tonkawa Hottes, 1949c:105 (new synonymy). 
Alate Vivipara. Abdomen pale green; antenna, lighter on I and proximal portion of all 
segments, distal portions dark; tibiae, especially knees and tips of tibiae and entire tarsi 
dusky to blackish; cauda, cornicle and dorsal tubercles pale. Dorsal tubercles present on 
abdominal I, II, III and IV, about .10-.12 long; lateral tubercles present on abdominal I, II, 
III and IV. Wings hyaline but fore wing with veins tipped and anal vein heavy. Body length 
1.60-2; across eyes .43-.45; antenna 2.20-2.60; hind tibia 1.40-1.50; hind tarsal II .12; rostrum 
attaining between lst and 2d coxae. Cornicle cylindrical or slightly tapering and with flange. 
Cauda knobbed; anal plate divided. 
Male. Alate. Similar to alate vivipara except antennal characters, as figured. 
Collections. On Quercus gambelli, Q. macrocarpa and Q. sp. on leaves. 
Colorado: Colorado National Monument (near Grand Junction) and Glade 
Park. Utah: Various localities in central and northern part of state. Alate 
viviparae and alate males Oct. 20 and 27; rather common. 
Type. Possibly U.S.N.M. M. kiowanica Hottes and M. tonkawa Hottes, 
U.S.N.M. 
Chief Distinguishing Characters: Length of III, number of sensoria on III 
(5-13), dorsal tubercles moderately well developed (.10 - .12 long) on abdomi- 
nal I to IV inclusive, pale cornicle ond dorsal tubercles and wing characters, (as 
shown on figure). 
Swain (1919: 178) declares maureri a synonym of M. californica Baker but 
as the unguis is only .16 long in Baker's species it seems impossible to accept 
this decision. 
On Quercus gambelli several collections were taken in Utah at Provo, Emi- 
gration Canyon and Gravel Springs which differ somewhat from the above de- 
scription in smaller measurements as follows: Body 1.40 - 2.35; hind tibia .90 - 
1.40: antenna 1.95 - 2.10, III .63 - .73, with 6-11 sensoria, IV .36 - .43, V .32 - .45. 
VI .20 - .21 - .25; cornicle .10- .12. As these characters, as well as those given 
for M. kiowanica and tonkawa, merge with those of maureri it seems impos- 
sible to draw a satisfactory line of distinction and seems to indicate one 
variable species. . 
