ABERKATION OF ACROKYCTA RUMICI8 AND A. ALNI. 97 



Trichoptera. 



"^•Drusus discolor \ 



■^'DriisiLs chrysotus 



■■'Drusus alpinus l Val d'Herens : July 10th-30th. 



■•'Drusus muelleri 

 ■''Drusiis melanchcRtes ) 



'^■Cryptothrix nehidicola. Trelechant, Col de Montets : August 6th. 

 ■■'Potamorites biguttatus. Val d'Herens : July 10th-30th. 

 ■''Sericostovm pedemontanum. One from Trelechant : August 6th, 

 Four from Val d'Herens : July 10th-30th. 



Plectrocnemia conspersa. One from Trelechant : August 6th. 

 One from Val d'Herens : July 10th-30th. 



■''■Bhyacophila vulgaris. Val d'Herens : July 10th-30th. 



Hyeees, St. Maxime, Binn, and Hospenthal, April to July, 1910. 



Plecoptera. 



Nemoura mortoni. Three females, Hospenthal : July 12th-31st. 

 Odonata. 



Brachytron pratense. One female, Hy^res : April 5th-20th. 

 Pyrrhosoma nymphula. One male, one female, St. Maxime : April 

 29th-May 11th. 

 Neuroptera. 



Sialis lutaria. Two, Hospenthal : July 12th-3 1st. 

 Baphidia notata. One male, Binn : June 20th-30th. 

 Chrysopa vulgaris. One, St. Maxime : April 29th-May 11th. 

 Trichoptera. 



■'• Acropliylax zerberus. A female, Binn : June 20th-30th. 

 *Drusus alpinus. Three females, Binn : June 20th-30th. 

 '^Drusus nigrescens. A male and a female, Binn : June 20th-30th. 



A male, Hospenthal : July 12th-31st. 

 "^Drusus melanchates. Two males and two females, Hospenthal : 



July 12th-31st. 

 ■''Lithax niger. Seven, one of small size, Hospenthal : July 12th- 



31st (six of them marked "Gotthard"). 

 "^•Potamorites biguttatus. Two males, Hospenthal : July 12th-31st. 

 "^'■Bhyacophila vulgaris. A male, Binn : June 20th-30th. [There 

 was also a '*Sericosto7na female (probably galeatum) from 

 Le Canadel.] 

 Kingston-on-Thames: February, 1911. 



ABEREATION of ACRONYCTA RUMICIS and A. ALNI. 



By Richard South. 



Herr M. Gillmer (Ent. Rec. xix. p. 91) describes an aberra- 

 tion of Acronycta rumicis as follows : — " It has the basal and 

 marginal areas of the fore wings black, the middle area scarcely 

 darker brownish -grey than in typical specimens; the outer, light, 

 transverse lines obsolete (or suppressed), only the white mark 



ENTOM. — MARCH, 1911. H 



