8 NOTES ON JAMAICAN HEMIPTERA 



this species, from Mr. Underwood that was taken in Costa 

 Rica. It differs from the Jamaican specimens in having the 

 humeri more obtuse but still directed slightly forward, and the 

 latero anterior margins are more strongly denticulated. 



Euschistus ursus n. sp. 



Allied to rugifer Stal and pertaining to that section of the genus as 

 arranged in the Enumeratio. Size and form of bifibulus nearly. Greyish 

 testaceous ; above coarsely punctured with black or dark brown, these 

 punctures gathered into blackish areas on the pronotum and leaving a 

 smooth bisinuated pale vitta between the humeri, produced at the middle 

 in an abbreviated longitudinal vitta ; base of the scutellum with three in- 

 definite smooth pale spots. Elytra dotted with black, each dot covering 

 from three to eight punctures. Antennae and legs pale, the latter faintly 

 dotted with brown. Beneath paler, obscurely maculated with a darker 

 shade; median line and tip of the rostrum, a dot above the insertion of each 

 leg, another on the anterior angle of the propleura behind the eye, and a 

 spot at each incisure on the margin of the venter, black. 



Head rather long, rounded before; cheeks and tylus of equal length, 

 the latter quite regularly punctured with black. Antennae unicolorous 

 impunctate; first joint scarcely attaining the apex of the head, second dis- 

 tinctly shorter than the third. Humeral angles of the pronotum prominent, 

 rounded before, subangular behind ; latero-anterior margins quite strongly 

 arcuated, blackened by the seggregated punctures, strongly crenulated with 

 pale. Membrane obscured, impunctate, nervures irregularly bent but 

 scarcely anastomosing. Connexivum closely punctured, the edge blackish 

 with a round pale spot at the middle of each segment and an obscure line 

 on the incisure. Rostrum attaining the posterior margin of the metaster- 

 num. Genital segment of the male rounded behind, feebly concave at apex. 

 Length 10 mm. 



Described from one pair taken at Rock Fort near Kingston 

 and two males from Port au Prince, Hayti, received from 

 Prof. Ball. This species has the size and form, nearly, of 

 specimens of biformis Stal with rounded humeri, but in most of 

 its characters it is much nearer to rugifer Stal. In the Hay- 

 tian examples the dotting of the elytra is almost obsolete and 

 the pale calloused vitta of the pronotum is sometimes incon- 

 spicuous. I have no doubt but this insect is the same as that 

 figured by Palisot de Beauvois as the female of his Pentatoma 

 obscura on plate 10, figure 9 and described on page 149 of his 

 work. His male obscura however is the same as crenator 

 Fabr. and I do not see how we can restrict the name obscura 

 to the female of his species : I have therefore thought it best 

 to rename the species. 



