Vol. xxii] ENTOMOLOGICAL NEWS 269 



guishing the known species of the genus. At that time I did 

 not have Dr. Bergroth's paper in which he had described D. 

 fmticicola, and I depended for my diagnostic characters upon 

 a specimen labelled as such, received from the National Mu- 

 seum. The recent acquisition of Dr. Bergroth's paper and 

 several specimens of the true fniticicola from Florida, kindly 

 presented to me by Mr. Van Duzee, has shown that the species 

 so indicated in my key is distinct, which I here describe as 

 D. reticulatus. I collected several specimens of this species 

 in the Huachuca Mountains, Arizona, in 1905. as well as an- 

 other undescribed species which I have called D. arizoncnsis. 

 This brings the total number of species of the genus Den- 

 drocoris up to seven, which may readily be separated by the 

 following synoptic table : 



Head incised in front, with lateral lobes not in contact. 



Humeri stronofly prominent and very acute schaefferi barb. Tex. 

 Head rounded in front, with lateral lobes more or less in contact. 



Humeri rounded, not at all prominent, barely projecting beyond 

 lateral margins of hemelytra. 

 Lateral margins of prothorax somewhat convexly arcuated. 



pini Mont. — S. W. States 

 Humeri more or less rounded or obtuse, projecting well beyond 

 costal margins. 

 Lateral margins of prothorax concavely arcuated. 



Anterior one half of pronotum infuscated: connexivum with- 

 out a small black spot at incisures. 



contaminatus Uhl. — S. W. States. 

 Anterior half of pronotum concolorous : connexivum with a 



black spot or band at incisures humeralis Uhl. — U. S. 



Lateral margins of prothorax nearly straight. 



Veins of membrane reticulated. Lateral margins of prothorax 



impressed and impunctate reticulatus n. sp. — Ariz. 



Veins of membrane normal. Surface of pronotum punctured 

 to the margins, which are not impressed. 

 The stigmata, extreme apical angle of abdominal segments 

 above and below and large spot at each incisure of the con- 

 nexivum, next the costal margin, black. 



fruticicola Bergr. — Fla. 

 The stigmata concolorous; extreme apical angle of abdomi- 

 nal segments below and with a band at base and apex of 

 each abdominal segment of the connexivum, black or fus- 

 cous arizoncnsis n. sp. — Ariz. 



