Head 1/3 longer than wide, with forehead slightly narrowed to a 

 rounded front. Temples rounded; occiput slightly concave. Trabeculae 

 prominent; antennal sinuses rather shallow; antennal bands conspicuous 

 as wide, dark areas bordering the forehead, lighter anteriorly. Pro- 

 thorax wider than long, rectangular with front and hind margins almost 

 straight; a long seta at each posterolateral angle. Pterothorax with 

 diverging sides and with 12 long setae along the posterior margin. 

 Abdomen elongate, widest at the 5th segment. 



Measurements: Picicola mississippiensis (McGregor, 1917a) 

 (from McGregor, 1917a) 



9 



Head Length .47 



Head Width .34 



Prothorax Width .27 



Pterothorax Width .36 



Abdomen Length .88 



Abdomen Width .43 



Total Length 1.62 



Described from a single female collected in Mississippi. Peters 

 (1928) reports it from Ohio, Peters (1936) from Delaware, Brimley 

 (1938) North Carolina, Emerson (1940) Oklahoma, Judd (1953) Ontario, 

 and Whitehead (1954) Quebec. 



Specimens Host Locality Date Collector 



6 Colccptes auratus Columbus, Ohio X-3-1919 P.R.Lowry 



Picicola Orpheus (Osborn, 1896) 



Nirmus orpheus Osborn, 1896. Bull. U. S. Bur. Ent . (n. s.), 5: 



227. 

 Type host: Dumatella carolinensis (Linnaeus) — Catbird. 



The status of this species and its host are both in doubt at the 

 present time. Edwards (1952) believes that the host, Dumatella 

 carolinensis (Linnaeus) is incorrect, and that it should be a species 

 of woodpecker. I have found no records of the collection of this 

 species in the United States. 



QUADRACEPS 



Quadraceps Clay and Meinertzhagen, 1939. Ann. Mag. Nat. Hist., (11), 



4: 453. 



Type species: Degeeriella vanelli (Denny, 1842) (A synonym of 

 Nirmus hospes Nitzsch, 1866). 

 Koeniginirmus Eichler, 1940. Zool. Anz., 130: 101. 



Type species: Nirmus punctatus Burmeister, 1838. 

 Oedianemiceps Eichler, 1943c. Zool. Anz., 141: 59. 



Type species: Nirmus annulatus Denny, 1842. 



133 



