MAl.l.Y-HIM ORV or MONOSI T.dlA (SKLANDklA) ICNoilA. ().> 



structure of these i:l:iii(l> in PcinpJiujus (c.^iselhifa l-'itdi :i> an il- 

 lustration of till' unicellular foi-ui, (apparentlA' the onlv fonu 

 hitherto reco^-ui/ed ), and in Sdiizoneiwa cratargi OcstliuKJ, 

 :i8 illustratiui,'- a eoini)lex izland. In the hitter the waxy se- 

 eretion is forced throunii chitiuous rims to cup like glands, 

 the glands arranged in clusters four to six or sc^veu in a clus- 

 ter and each composed of numerous cells. 



ADDITIONS TO THE CATALOGUE OF IOWA 

 HEMIPTERA. 



I'.V VKOV. HKKF.Kkl OSBORN, 



The additions to my list of two years ago presented in this 

 <'ontril)ution number thirty and I have a few species undeter- 

 mined that can probably be included by the time the full list 

 is published. 



LIFE HISTORY AND EMBRYOLOGY OF MONOSTE- 

 GIA (SELANDRIA) IGNOTIA (NOR). 



HV PROF. FREDKRICK W. MALLV. M. S 

 ^ Abstract.) 



This pai)«»r was a brief extract, giving the more important 

 i-esults of a study of tiie al>o\ c named species as etiecting the 

 strawberry, and included in a Thesis ])rei)ared for the degree 

 of Master of Science at the Iowa Agricultural College, Ames, 

 Iowa, and is published m Insect Life, \o\. II. 



The adults of this new strawberry pest appear about the 

 1st of April and begin egg deposition soon after. The period 

 of greatest de[)osition l)eing about the middle of Aj)ril. In two 

 weeks the Q^^^^^ hatch. Larvte are found from the middle of 

 April, being most ulmndant during the tirst half of May, and 

 by the 1st of June all the larvie have matured and entered 

 the earth. 



The larviv of Monostegia itjnota {Xor.), are distinguislied 

 from those of Harpiphorus maculatus by having a uniform 



[Pkoc. I. A. S., 18S7-9.) 65 [February 26, 1890.] 



