52 BULLETIN 826, U. S. DEPARTMENT OF AGRICULTURE. 



Subtribe CERVAPHIDINA. 



The subtribe Cervaphidina is a most interesting and peculiar one. 

 The specialization is remarkable in that long processes are developed 

 on the body and considerable reduction has taken place in the wings 

 and antenna 3 while no Aphis-like cauda is found. Only two genera 

 are known, which may be separated as follows: 



Key to the Genera of the Cervafhidina. 



Cornicles swollen; body spine-like projections not armed with teeth. . .Anomalaphis. 

 Cornicles not swollen; body spine-like projections armed with teeth Cervaphis. 



Genus ANOMALAPHIS, n. gen. 

 Plate VIII, D-F. 



Characters. — Body armed with elongate tubercle-like projections, particularly on 

 the caudal portion; antennae five-segmented in both apterous and alate forms, 

 armed with subcircular sensoria. Fore wings with the media once branched; 

 hind wings considerably reduced, with the cubitus absent. Cornicles distinctly 

 swollen; cauda and anal plate reduced. 



Type Anomalaphis comperei Pergande. 



Anomalaphis comperei Pergande, 11. sp. 



Among the many descriptive notes left by Mr. Theo. Pergande are 

 some recording a peculiar species from Australia. This proves to 

 represent an undescribed genus in the Cervaphidina. Pergande rec- 

 ognized the species as typical of a new genus to which he gave the 

 manuscript name here used. He left no description of the genus 

 and his notes on the species are given here exactly as he left them. 

 The type is in the United States National Museum collection of 

 Aphididae (Cat. No. 23065). 



Feb. 18, 1907, Rec. from Compere, a lot of Aphides, found in 1901, on Acacia and 

 Eucalyptus, along the beach at Albany, West Australia, which represents a new genus 

 among Rhopalosiphins, and is a most remarkable Aphid in various respects. The 

 antennae, in the apterous and migratory female, are but 5-jted. while the spur is rather 

 short and resembles that of Chaitophorus . The front wings are ample and reach con- 

 siderably beyond the end of the body, with the third discoidal" having but one fork, 

 as in Schizoneura. The hind wings are very short and narrow and reach out to the 

 apex of the 1st vein of the anterior wings, there is also but 1 discoidal, straight, and 

 near the apex of the wing. The nectaries are short, clavate, and similar to those of 

 Siphocoryne, the tail appears to be wanting. The abdomen of the migrant appears 

 to have been of a dusky yellowish green, with transverse rows of small, black spots or 

 tubercles, and blackish sutures between the segments. The eyes are brown; antennae 

 black, rather short, reaching barely to the abdomen and but 5-jointed; the two basal 

 joints as usually; the 3rd joint is longest, about as long as the remaining joints together, 

 including the spur, with some projecting sensoria and a few short hairs; joints 4 and 5 

 are subequal in length, exclusive of the spur, and clavate, the spur is about J the 

 length of the basal section of the joint, rather stout and blunt; the front of the 

 head resembles that of Aphis. The sides of the abdominal segments are somewhat 

 angulated, each angle provided with a very short, capitate, stout bristle, while at the 

 posterior edge of the two segments, following the nectaries, there is a pair of long, 



