R. L. Edwards.
A New Gruimenopon (Mallophaga - Menoponidae).
Psyche 56(3):116-119, 1949.

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A NEW GRUIMENOPON (MALLOPHAGA-
MENOPONIDAE)l
BY R. L. EDWARDS
Biological Laboratories, Harvard University The genus Gruimenopon, typically parasitic on the bird family Gruidae (cranes), has not been previously recorded from North America.
Gruimenopon canadensum, n. sp.
Plate 6
A relatively atypical member of the genus. 14 males averaged 1.94 mm. in length and 12 females averaged 2.29 mm. in length. Uncleared -specimens superficially resem- ble species of the genus Colpocephalum, being light tan in color with large, dark ocular and cervical sclerotiza- tions. Sexual dimorphism, excluding size, very slight. Head broader than long, not as smoothly rounded an- teriorly as in G. longum. Antennae with terminal segment typically elongate-cylindrical (Fig. 4). Latero-posterior margin of temple with three very long, stout setae. Thorax as in longurn. Prothoracic tibia with fairly well developed comb. Meso- and metathoracic tibiae with rela- tively thick patches of setae distally. These patches con- sist of three or more almost comb-like rows of fine and coarse setae. Metathoracic femora and fourth abdominal sternite with large brushes typical of genus. Terminal segments with very long, stout setae directed posteriorly. Female with only shallow, median indentation in eighth sternite.
Male genitalia characterized by large, hyaline, termin- ally squared prolongation of basal plate. Parameres hya- line, only slightly curved, each with single seta terminally. Preputial sac beset with numerous, small teeth. Other sclerotized structures connected with basal plate and pre- putial sac best indicated by figure 3.
1Published with a grant from the Museum of Comparative Zoology at Harvard College.
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Type host : Grus c. canadensis (Linn.), the little brown crane.
Type Material : Holotype male, allotype female, 13 paratype males and 12 paratype females. Material col- lected from skins in the Museum of Comparative Zoology as follows; skin #63187, collected by F. B. Armstrong, Refugio Co., Texas, December 11,1912 ; and skin #252139, collected by F. S. Hersey, St. Micheal, Alaska, June 3, 1915. Holotype and allotype deposited in the Museum of Comparative Zoology. Paratypes will be distributed to United States National Museum, American Museum of Natural History, and British Museum of Natural History. Discussion: This enigmatic species seems to be inter- mediate between Gruimenopon and Heleonornus. The ocular and cervical sclerotizations, the general head shape and the male genitalia all seem to be more closely allied to Eeleonomus. In other features, such as shape and chastotaxy of thorax and abdomen, it is like members of the genus Gruimenopon, in which genus it is retained because these features seem more significant generically.



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