ART. 20 



THE APHID GENUS AMPHOROPHOEA MASON 



49 



sensoria near base. Antennal tubercles very large and long. Beak 

 reaching beyond second coxae, nearly to third. No prothoracic or 

 abdominal tubercles. Cornicles very light colored, long, strongly 

 dilated on distal half, but not much reduced at flange, reticulated 

 for a short distance, not imbricated. Cauda concolorous with 

 body, long, broad, strongly constricted at base; two sets of lateral 

 hairs. Measurements as follows: 



Host, — Clintonia . 



Distribution.— Orono, Maine. 



Cotypes. — Returned to Maine Agricultural Experiment Station. 



AMPHOROPHORA PERGANDEI, new epecies 



Figs. 72-77 



Pergande took the apterous forms of this species on the under side 

 of currant leaves at Washington, D. C, on May 6, 1897. On May 

 12 he reared from them a single alate specimen. These cotype 

 specimens furnish the only records we have of the species. 



This species can be distinguished from cosmopolitana on the same 

 host by the larger number of sensoria and by the very long, capitate 

 hairs of the antennae. 



Alate viviparous female. — Antennae about twice as long as body, 

 dark colored, very tuberculate, III with 125-130 sensoria, IV with 

 40-45 sensoria, V with 5-8 sensoria, hairs capitate and as long as or 

 longer than width of segment. Antennal tubercles of moderate size. 

 Beak reaching about to second coxae. Prothoracic tubercles not 

 showing. Abdomen without the lateral dark patches as in cos- 

 mopolitana. Cornicles of moderate length, strongly swollen, dark 

 colored, lighter at base, tips very faintly imbricated. Cauda very 

 long, narrow, constricted, four sets of large lateral hairs. 

 43328— 25t 4 



