1907.] NATURAL SCIENCES OF PHILADKLI'HI A. ' 485 



and others. 1 am euiiviuced that the species found tiiroughout the West 

 Indies and Florida and listed by nie as B. Signoreti in my paper on 

 .laniaican lleniiptera is really Adana Wcsttcoodi Stal, which Canon 

 i'owler places as a synonym of Bolhrioccra iincaUs Burra. He states 

 that Siijnordi may be known by its having the apex of the elytra 

 broadl}' hhickish, while in iinadis it is nu;re or less invaded with 

 liyaline. 



Bothriecera undata 1 abi. 



Described from tlie West Indies. Mi's. Slosson has sent me a speci- 

 men captunnl by hcv at Lake Worth, Morida. 



Genus OLIARUS StM. 



Of this cosmopolitan genus nine species have been recorded from 

 North America, of which six are now represented in my collection. 

 Here we find the vertex longer than in Cixius, almost quadrangular, 

 with the base angularly emarginate. Generally there are five distinct 

 carinai on the mesonotum. The following artificial key will assist in 

 placing the species known to me : 



Elytra pellucid or nearly so, sometimes banded or mottled with brown, 



1. 

 Elytra deep smoky brown, at least toward the apex, .... 4. 



1. Elytral nervures distinctly punctate, 2. 



— . Elytra hyaline or a little dusky at apex where the nerviu-es are 



then heavy and brown, nervures impunctate or nearly so, . 5. 



2. Front broad, brown with an ivory white area on either margin 



next the base of the clypeiis; elytra hyaline with the stigma 



and nervures toward their apex brown, . . . aridus Ball. 



— . Front unicolorous, the clyjjeus sometimes a little paler, . . 3. 



3. Clypeus scarcely paler than the front; elytra le.ss maculated, the 



stigma distinct! \^ longer than broad, . . . vicarius Walk. 

 — . Clypeus generally j^aler than the front; elytra more maculated or 

 generally transversely banded, stigma subquadrate, 



5-lineatus Say. 



4. Elytra deoji smoky brown, the slender costa and stigma pale, 



cinnamomeiis Prov. 



— . Elytra smoky at apex l^eyond the stigma, base usually subhya- 



line, size smaller, humilis Say. 



5. Length S mm., elytra entirely pellucid with fuscous nervures, 



'stigma, and basal band, hyalinus Yan D. 



— . Length 4-5 mm., elytra nearly hyaline or somewhat infuscated at 

 apex, without a basal band, complectus Ball. 



The following Xortli American species of Oliarus are still unknown 

 to me: 



