128 GEO. H. HORN, M. D. 



They may be known as follows : 



Body above with erect hairs beside the pubescence. 



Mesosternum broad; antennae not much longer than the body and notciliate 



beneath except feebly on the scape Urograpliis n. g. 



Mesosternum narrow; antennae twice as long as the body and very slender, 



ciliate beneath Grapliisiirus. 



Body above without erect hairs. 



Mesosternum moderate; antennae very long, joints 3^4 at least, densely 



fringed beneath with short hairs Acailtliociiins* 



The first two genera belong to the Atlantic region, the last has 

 representation on both sides of the Continent. 



UROGRAPIIIS n. g. 



The species here included are those which form the genus Graphi' 

 sums as defined by Lacordaire and all authors who have preceded him 

 Bince the time of Kirby. Many of the differences between this and the 

 true Kirbyan genus have already been given, others are as follows: 



Antennae moderately robust, nearly equal in the sexes, very little 

 longer than the body, joints 3 — 11 gradually decreasing in length, 

 the first and third with a few cilise beneath. Presternum moderate 

 in width, channeled, mesosternum broad, slightly dilated at tip and 

 emarginate. Elytra emarginate at tip. Thorax angulate at the sides 

 a little behind the middle, not prolonged in a spine. 



Females with a moderately long ovipositor, the fifth ventral segment 

 also prolonged to an extent nearly equal to the ovipositor and deeply 

 cleft {/asciata), or triangularly emarginate (triangidifera). 



The males of /ascta^a have the anterior and middle tarsi broader 

 than in the female and ciliate at the sides, while the tarsi do not 

 especially differ in triangidifera. 



U. triangulifera Hald., Trans. Am. Thil. Soc. x, p. 45 ; Lee. Journ. Acad. 

 1852, ii, p. 174. 



Ohio to Missouri, Georgia and Texas. 



U. fasciata De Geer, Mem. v, p. 114, pi. 14, fig. 7; Lee. loc. cit. p. 175; 

 despectus Lee. Agass. Lake Superior, p. 234; pusillus J Lee. Journ. Acad. 1652, 

 ii, p. 175. 



The form known as despectua (pusdlus |), is the smaller form with 

 the anterior oblique dark band wanting. 



Very widely distributed. 



GRAPHIiSURUS Kby. 

 There is no genus in the present tribe about which there is as 

 much misconception and real error as the present. The mistake has 

 doubtless arisen from an erroneous determination of Kirby 's typical 

 species and to make further remarks clear I copy his description : 



