BIBLIOGRAPHY AND ILLUSTRATIONS. 9 



as recognized in this work, is given the name of its author or 

 founder with year and page number of the work where the 

 family or genus was founded or the species described and 

 named. Thus Orthotylus catulus Van Duzee, 1916b, 106, refers 

 to the original description of that species on page 106 of the 

 paper above mentioned; while Kolenetrus Barber, 1918c, 49, 

 means, as a reference to the bibliography will show, that the 

 genus Kolenetrus was founded by H. G. Barber, on page 49 of 

 his paper entitled "Concerning Lygaeidae — No. 2," which ap- 

 peared in the Journal of the New York Entomological Society, 

 Vol. XXVI, 1918, pp. 49-66. For the most part the names of 

 the authors cited are spelled out, but that of J. R. de la Torre- 

 Bueno has been shortened to Bueno.* No attempt has been 

 made to cite all the references to each species in the literature 

 pertaining to the Heteroptera of the region covered, as such 

 mention or synonymy would fill several volumes by itself. The 

 student is referred to the Van Duzee Catalogue above cited 

 for detailed reference to each species up to the year 1917, and 

 to the "Bibliography of the North American Hemiptera-Het- 

 eroptera" by H. M. Parshley for the full titles and place of pub- 

 lication of the great majority of the papers pertaining to the 

 Heteroptera of this country up to June, 1925. 



Measurements. — The measurements used in this work are 

 given in millimeters or decimals thereof. A millimeter (mm.) 

 =.0394, or a little more than 1/25 of an inch. For all prac- 

 tical purposes it may be remembered that 2.5 mm. =1/10 inch; 

 3 mm.=l/8-f inch; 4 mm. =1/6+ inch; 5 mm. =1/5 inch; 

 7.5 mm.=3/10 inch; 10 mm. =2/5 inch; 12.5 mm. =1/2 inch; 

 15 mm.=3/5 inch; 17.5 mm. =7/10 inch; 20 mm.=4/5 inch. 



The measurements as given are usually those of the ex- 

 tremes of the series at hand and thus represent fairly well 

 the variation in size of the different parts measured. The 

 length of the body in macropterous forms is taken from the 

 tip of the tylus to the apex of the membrane of elytra, and in 

 the brachypterous ones to the apex of abdomen. 



Where, in the original description, the specific name was 

 placed by the author in a genus different from that to which 

 it is now referred, the name of the author or its abbreviation 

 is placed in parenthesis. 



Illustrations. — The illustrations used in this work have 

 been derived from various sources, and credit is given under 



s Royal Palm Park in extreme southern Florida, where I have collected extensively, 

 is, in the distribution notes, also abbreviated to "R. P. Park.'' 



