Dec.ioo?.] GiRAULT : BIOLOGICAL NOTES ON MeGILLA. 193 



The larva of L. texana is carefully described by Townsend and 

 differs from that of our common L. decemlineata by its pale straw color 

 and by the absence of the series of baso-pleural spots of the abdomen. 

 In this latter character it approaches the larva of Z. jiaicta. 



Leptuwtarsa texana has generally passed among American ento- 

 mologists under the name defecta. Mr. Schaeffer, who took both 

 species at Brownsville, has demonstrated the distinctness of the two 

 forms. Tower has recently added to the confusion by treating iexana 

 under the name defecta and quoting the localities given by Stal and 

 Salle for the true defecta. The following references may help to clear 

 the confusion. 



Leptinotarsa defecta Stal. 



Myocoryna defecta Stal, Ofv. af K. Vet. Ak. Forli., 1859, p. 317. 



Chrysoniela defecta Stal, Mon. Chrys. de I'amerique, 1862, p. 165. 



Leptinotarsa defecta Jacoby, Biol. Centr. Anier. , Phytophaga, I, p. 234, PI. XIII, 



fig. 21, 1892. 

 Leptinotarsa defecta Schaeffer, Bull. Brookl. Inst. Arts and Sci., I, p. 239, 1906. 



Leptinotarsa texana Schaeffer. 



Leptinotarsa defecta Linell, Jour. N. Y. Ent. Soc, IV, p. 196, 1896. 

 Leptinotarsa ii-lineata Townsend, Trans. Tex. Acad. Sci., V, pp. 82-84, 1903- 

 Leptinotarsa defecta Tower, Evolut. in Leptinotarsa, pi. 23, fig. 20, 1906. 

 Leptinotarsa texana Schaeffer, Sci. Bull., Brookl. Inst. Arts and Sci., I, p. 239, 

 1906. 



BIOLOGICAL NOTES ON MEGILLA MACULATA 



DE GEER. 



By a. Arsene Girault, 

 New Richmond, Ohio. 



The following brief descriptive and biological notes on this lady- 

 bird were obtained while making an attempt to keep many pairs in 

 confinement through the several generations of a season, but which 

 attempt failed because of the scarcity of food. There is included a 

 description of the process of hatching, records of the period of incu- 

 bation during portions of May and June, 1907, records of the larval 

 and pupal instars for a single generation, and notes on adults kept in 

 confinement, all of which are more or less fragmentary. The obser- 

 vations were made in the laboratory at New Richmond, Ohio, about 

 latitude 38 degrees, 48 minutes north. 



