June, ’20] 
HAYES: SOME KANSAS LACHNOSTERNA 
305 
species comprises 13 per cent of the collections with a total of 6,191 
specimens taken. The collections show that L. rubiginosa is more 
abundant on food plants than at lights, where 69 per cent of all taken 
were found. 
L. futilis (gibbosa ).—A total of 5,680 specimens of L. futilis, or 11 
per cent of the total collections have been made in the last four seasons, 
giving to this species third place in point of numbers. In all, 4,521 
Fig. 12 .—Lachnosterna rubiginosa Lee.; A, male; B, female. 
beetles, or 79 per cent were collected at lights, 1,150 on food plants, 
and five in the soil. 
L. rugosa. —This species stands fourth in abundance with a total of 
2,379 beetles, of which 79 per cent were taken at lights. 
L. implicata. —The collections of L. implicata amount to 827 indi¬ 
viduals which places the species fifth in importance. The majority, 
or 68 per cent, were taken on food plants. 
L. vehemens. —Two other species of Kansas Lachnosterna (L. hirti- 
cula and L. bipartita) not considered in this paper stand, in point of 
numbers, ahead of L. vehemens which ranks eighth with a total of 437 
specimens collected. Of these 429 were taken at lights. 
L. submucida. —Among the 23 species of Lachnosterna collected in 
the area under consideration, L. submucida ranks sixteenth. It is 
represented by only 18 specimens, but one of which was taken on food 
