222 PROCEEDINGS OF THE AMERICAN ACADEMY. 



2019, 2022, 2023, 2024, 2025, 2026, 2027, 1445, 1444, 1970, 1997, 

 2010, 2014, 2017, 2022. 



Lahoidbenia Ptcrostichi Th. was found occasionally on carabids, all 

 allied to Pterostichus, near Buenos Aires. 



Laboulbenia punctata Th. was found on the head of a large Galerita 

 with red pro thorax, from Tucuman No. 1441, the individuals for the 

 most part immature and somewhat smaller than the type, but other- 

 wise identical with it. 



Laboulbenia Pygmaea Th. was obtained on Galerita sp. from Jujuy, 

 northern Argentina, in the Museo Nacional, occurring on the tip of 

 the abdomen. The species seems to vary chiefly in the relative width 

 of its receptacle which may be considerably narrower than it is repre- 

 sented in my Monograph, Part II, Plate LXII, fig. 6. 



Laboulberiia sigmoidea Spegazzini. This well marked species which 

 is most nearly allied to L. elegans Th., was found on the left inferior 

 margin of the prothorax of a carabid named in the Museo Nacional 

 Argutor Bonariense, but referred to by Spegazzini as an Argutoridius 

 in his original description, Fungi Chilenses, p. 134 (Buenos Aires, 

 1910). It was found by me near Santiago, Chile, and in several 

 localities in the vicinity of Buenos Aires, but although the host is 

 common it was rather rare. The host-genus is Pterostichus. 



Laboulbenia Tachyis Th., or a very closely allied form, was found 

 repeatedly on a Bradycellus sp. in the park at Palermo, No. 1697, also 

 at Temperley, No. 1517, and at Llavallol, No. 1996. 



Laboidbenia Tezana Th. A single immature individual that appears 

 to belong to this species was obtained on a species of Brachinus on 

 the Isla de Santiago, La Plata. The other forms heretofore grouped 

 as varieties of this species, are referred to above (p. 56). Among these 

 L. incurvata, L. retusa and L. tibialis were again found in the Argentine. 



Laboulbenia variabilis Th. was common about Buenos Aires, as it 

 appears to be everywhere else in South America, Nos. 1433, 1435, 

 1443, 1446 etc. 



Laboidhenia vulgaris Th., which appears to have been described as 

 L. Chilensis by Spegazzini, is everywhere common on Bembidia 

 in Chile and the Argentine. There seem to be no characters indicated 

 either by Spegazzini 's description or figures which would suggest 

 that L. Chilensis should be considered distinct. (Spegazzini, Fungi 

 Chilenses, p. 133.) 



Moniocomyces Homalotae Th. A few typical specimens of the 

 smaller form of this species on Atheta sp.. No. 1510, were found 

 at Palermo. Another species closely allied to M. Homalotae, was 



