184 THE CANADIAN ENTOMOLOGIST. 



Lasioptera ephedricola, n. sp. — Gall a resinous elongate lateral brown 

 swelling of a twig of Ephedra trifarca. Flies emerge second week of 

 March. 



<$ . Similar to L. ephedrce, but abdomen with basal and apical white 

 bands on the fifth segment, but otherwise hardly banded. Legs dark 

 brown. Costa without a white spot. 9- • Costa black, with a white 

 mark ; thorax with three black vitt?e joined in front ; abdomen with ten 

 white spots. Antennae: ^ , 2 + 18 jointed ; 9 , 2 + 20 jointed. 



The anchor-process of the larva resembles that figured by Riibsaamen, 

 in Bull. Soc. Nat., Moscow, 1895, Plate XVI., Fig. 25, but it differs in 

 detail, being broader and shorter, with the two processes of the head only 

 about half as long, and at least twice as far apart. The sides of the head 

 are also much more bulging. (The anchor-process of Lasioptera \Villisto?ii 

 differs from both of these in having a large quadrate elevation between the 

 processes.) 



Hab. — Mesilla Park, N. M., 1900. 



Cecidotnyia, n. sp. — Galls on Lycium Torreyi. 9 • Eyes united on 

 vertex; antennae 2 + 15 jointed; head and thoracic dorsum very dark 

 brown, abdomen mostly crimson ; legs and antennae very dark brown. 

 Mesilla Park, N. M. 



Cecidomyia, n. sp. — In dry stems of Amarantus Palmeri, not forming 

 a distinct gall. Larva orange ; anchor-process with the head terminating 

 in two large sharp teeth, and the sides of the head produced into long 

 sharp teeth. Adult unknown. Mesilla Park, N. M. 



BOOK NOTICE. 



FOSSILE SCHMETTERLINGE UND DER SCHMETTERLINGSFI.UGEL, by A. 



Radcliffe Grote. Verhandl. der K. K. Zool.-bot. Gesellschaft in Wien, 

 Heft 9, Jahrgang, 1901. With figure in text. 



The author alludes to a general difficulty in tracing descent, arising 

 out of the movements of animals. The butterflies had a special cause for 

 such shifting of territory at the time of the glacial epochs ; as previously- 

 shown by the author before the Am. Ass. Adv. Sci. in 1875, ^ Q effect of 

 these migrations may be traced in the geographical distribution of 

 QLne'n scmidea at the present time. Not only the obscurity of the fossil 

 remains of Lepidoptera,but a want of detailed knowledge of the neuration 

 itself, made the earlier determinations uncertain ; the wings are often the 

 best preserved portions of fossil specimens and thus the importance ot 

 their close study becomes obvious. The author recapitulates his 



