2oo ENTOMOLOGICAL NEWS [May, '18 



annual loss of wheat exceeding in value one million dollars. It is 

 spreading over the entire southeastern wheat region. It winters as 

 larvae in grain in granaries and barns ; constructs cocoon within grain, 

 and starts to transform to pupae in May. May 10-20 large number 

 of pupae found. First generation emerges in late May and early 

 June coincident with the heading of the wheat. Females deposit their 

 eggs under the glumes which protect the green wheat. Number of 

 eggs per female ranges from 36 to 148, with an average of 92. Most 

 of the eggs are deposited the first and second days after mating. 

 Hatching occurs in 7 to 9 days. Young larvae gnaw their way into 

 the green wheat and feed on the milky contents. Life cycle requires 

 40 to 50 days, and in some instances longer. A second generation oc- 

 curs at harvest time, and this for the most part emerges after the 

 wheat has been carried into the barns. This leads to the development 

 of three more broods, so that in all there are five broods of moths 

 each year, and there is evidence that we have as many as six broods, 

 as moths were found in the barns as late as mid-December. The 

 great destruction of wheat by this insect is done while the unthreshed 

 wheat remains in the mow. 



Mr. Daecke exhibited pitch nodules of Evctria virginiana Busck and 

 E. comstockiana Fernald, stating that those of the latter are always 

 found on one year old shoots, while those of the former are on two 

 to five year old branchlets. This led to the observation that it takes 

 7'ii't/iniaua two years to mature. He exhibited also the small thin- 

 walled nodules of virginiana at the end of their first year and at the 

 time when the two year-old insects are emerging. 



Diptera. The larvae and pupae from pig manure exhibited by Air. 

 Hornig at the December meeting have emerged and prove to be 

 Chrysomyza dcmandata Fabr. 



Coleoptera. Mr. Hornig exhibited a bottle containing milk tablets 

 which has been in a desk since 1912. Upon examination this was 

 found to contain live Anthrcnus larvae. Prof Sanders said there is 

 a record of Trogodcrma larvae living five years without food. 



Mr. J. W. Green exhibited the Ligyrus mentioned at the January 

 meeting and a Florida specimen from Dr. Castle's collection, the 

 genitalia of which agree with his specimen. Sketches of the genitalia 

 were also shown proving that gibbosus DeG. and ncijlcctus LeC. 

 are distinct. 



Mr. H. W. Wenzel exhibited four pairs of dents hictus King- (ab- 

 rnfittis LeC.) which superficially appear to be four different species. 

 Those from Boulder, Colorado, were light; from Southeastern Ore- 

 gon had dark elytra; from Round Mt, Texas, had dark elytra and 

 thorax, while the Chisos Mts., Texas, form had dark elytra and thorax 

 but were much larger. GEO. M. GREENE, Sec'y. 



