200 GENUS GARGAPHIA 



The types of the following species have not been available nor 

 has the author seen any specimens identified as belonging to 

 these species. He requested material for study from various 

 American hemipterologists, but in none of the collections exam- 

 ined were representatives of these species found. The best 

 that can be done under the conditions, and until such a time as 

 the types are available, is to consider them according to Stal's^ 

 treatise of the genus, and to apply his differentiations to the 

 author's divisions as set forth in the key to the species. 



Formosa Stal, trichoptera Stal, and suhpilosa come within the 

 division containing species whose costal areas have four or more 

 rows of areoles at their widest part. Formosa, whose type local- 

 ity is Rio Janeiro, is listed by Stal with patricia Stal and fasciata 

 Stal. Trichoptera, whose type locality is Bogota, Colombia, is 

 compared with nigrinervis. It is much larger than nigrinervis. 

 According to Berg,^ subpilosa Berg, with type locality Buenos 

 Ayres, differs from trichoptera in the smaller number of hairs, 

 principally on the lower part of the body, in the very high angle 

 of the lateral membrane of the pronotum, and in its smaller size. 

 It also differs from nigriyiervis Stal in the hairs which are on the 

 hemelytra, in the hairs scanty and very short on the abdomen, 

 and in the much elevated angle of the lateral membrane of the 

 pronotum. 



Gargaphia flexuosa Stal, Innidata Mayr, munda Stal, simidans 

 Stal, ohliqua Stal, and tricolor Mayr, all belong to the division 

 having less than four rows of areolae in the costal area. Flexuosa 

 and lunulata have two rows of areolae in costal area while the 

 other species have three rows. Stal states that while flexuosa 

 and lunulata are very similar, lunulata is much the paler. The 

 writer suspects that could the types be examined lunulata would 

 be place into synonomy with flexuosa. The type locality for 

 both is Rio Janeiro. 



Ohliqua is separated from munda and simidans by having the 

 lateral margins of the pronotum much wider. Simulans is 

 smaller than munda, otherwise greatly resembling it, and may 

 prove to be a synonym of munda. The type- locality of munda, 

 simulans, and ohliqua is also Rio Janeiro. 



lEnum. Hem., 1873, no. 3, p. 124. 

 2 Hem. Argentina, 1879, p. 137. 



