162 FLORIDA HEMIPTERA 



the large pale form generally known as sides and the smaller 

 darker form described as pictipes by Stal. These two forms 

 may yet prove to be distinct but it seems hard to fine characters 

 that will separate them satisfactorily. 



The American forms of this difficult genus have never been 

 properly worked out. Signoret's so-called Monograph was 

 merely a collection of descriptions founded largely on color 

 characters, of the species of the world known to him, with no 

 attempt at systematic arrangement and few comparative notes. 

 Stal published some excellent systematic work on the genus 

 but he knew but few of our American forms. During the past 

 summer (1908) two interesting papers on our species have been 

 published. A careful and valuable revision by Mr. J. C. 

 Hambleton appeared in the June number of the Annals of the 

 Entomological Society of America, (vol. r, pp. 133-147.) This 

 paper leaves our species in good shape for further study but 

 unfortunately Mr. Hambleton does not take any notice of the 

 valuable genera and subgenera established by Stal and now 

 generally adopted by the European entomologists, and there 

 are one or two of his determinations of which I cannot but feel 

 doubtful. He is certainly correct in placing viridicatus Uhler 

 as a species distinct from hyalinus Fabricius but is in error in 

 allying it with crassicomis. It is very close to hyalinus but 

 may readily be distinguished by the form of the dorsal genital 

 plate of the female which is short and truncated in hyalinus and 

 much longer and rounded at apex in viridicatus. The July 

 number of the Canadian Entomologist, mailed about two weeks 

 after the appearance of Mr. Hambleton 's paper, contains some 

 systematic notes on this genus by Prof. Carl F. Baker in which 

 he has located our species in their generic or subgeneric posi- 

 tions. This paper would supplement the revision by Mr. 

 Hambleton very well were it not that their determinations do 

 not always agree. Through some singular oversight Mr. Baker 

 states that Stal has in the Enumeratio restricted the old genus 

 Corizus to crassicomis and its allies. Stal does not mention 

 crassicomis in the Enumeratio but in this "Genera Coreidarum 

 Europae disposuit" he establishes genus Stictopleurus for this 

 very species and restricts Corizus to those species in which the 

 corium is entirely coriaceous, no representative of which is 

 known to me from America. Mr. Baker indicates but does not 

 describe four forms of novceboracensis Sign, {crassicomis Fabr.), 



