LAEMOBOTHRION 



Laemobothrion Nitzsch, 1818. Germar's Mag. Ent . , 3: 301. 

 Type species: Laemobothrion maximum (Scopoli, 1763) 

 (By subsequent designation, Johnston and Harrison, 

 1911, Proc. Linn. Soc. N. S. W. , 36: 327). 

 Laemobothrium Burmeister, 1838. Handb. Ent., 2: 441 



(Emendation) . 

 Eulaemobothrion Ewing, 1929. Manual External Parasites: 189. 

 Type species: Laemobothrion nigrum Burmeister, 1838 

 (A synonym of Laemobothrion atrion (Nitzsch, 1818). 

 Omithopeplechthos Eichler, 1941a. Stettin. Ent. Ztg., 102: 127. 



Type species: Laemobothrion opisthoaomi Cummings , 1913. 

 Pterophagus Eichler, 1941a. Stettin. Ent. Ztg., 102: 128. 

 Type species: Laemobothrion gracilentum Harrison, 1915 

 (A synonym of Laemobothrion graaile Giebel, 1874). 

 Plegadilymantikos Eichler, 1941a. Stettin. Ent. Ztg., 102: 128. 

 Type species: Laemobothrion pallesoens Kellogg, 1908. 



This genus is recognized by the two-clawed tarsi, bulbous antennal 

 capsules and conspicuously large size. In Laemobothrion Nitzsch, 1818, 

 sens. str. the clypeus is not emarginate in front and is without peg- 

 like spines. Species of the subgenus Eulaemobothrion have the clypeus 

 incurved and bearing several erect, peg-like spines on or near the 

 front margin. 



Laemobothrion atrum (Nitzsch, 1818) 



Liotheum atrum Nitzsch, 1818. Germar's Mag. Ent., 3: 302. 

 Laemobothrion nigrum Burmeister, 1838. Handb. Ent., 2: 422. 

 Laemobothrion tathrobium Kolenati, 1846. Melet. Ent., 5: 139, 



pi. 19, fig. 6. 

 Type host: Fulioa atra Linnaeus — European Coot. 



Laemobothrion atrum (Nitzsch) has been reported from California 

 (Kellogg, 1896), Ohio (Peters, 1928), Utah (Stanford, 1932), and North 

 Carolina (Brimley, 1938). Procter (1938) says L. atrum "occurs on 

 coots" in the Mt. Desert region of Maine. 



No specimens of L. atrum taken in the New England area were seen. 



Male: Head usually with 6 stout spines at the anterior margin, occa- 

 sionally 2 or 4; one seta on each side of the gular plate. Thorax 

 with the number of setae on the lateral projection varying from 3 

 to 4; sternal plate present, indented anteriorly, sides slightly 

 concave; meso-metathoracic plate with 2 or 3 long setae on each side; 

 abdomen with tergal plates I-VIII undivided; tergal plate IX may be 

 continuous across the segment or divided medially. Sternal plates III- 

 VI rectangular and separated from the pleurites; sternite V with comb- 



