190 



ROLAND TIIAXTER ON THE 



rounded by sharply defined concentric lines." The figure represents a spore of the 

 Orylli type which bears little resemblance to that of E. Muscae, so that any determina- 

 tion based upon the figure and description is not possible. 



Tarichia uvella, Krassilstchik I. c, p. 95. 



Under this name Krassilstchik has described a fungus, growing in coleopterous lar- 

 vae, which is characterized by the production of a mass of brick-red " Tarichium" spores 

 produced by a process not observed, and cohering in small, grape-like clusters as indi- 

 cated by the specific name. The spores are described as round, papillate, 8-10 M in di- 

 ameter, surrounded by a wall of no great thickness. In a nutritive fluid they germinated 

 in four days, producing septate hyphae which after a week grew out of the culture fluid 

 and produced single, terminal, cylindrical, colorless spores, 9 X 3,u. 



This does not appear to be an Empusa from the course of development described, al- 

 though it might possibly be related to Massospora. Concerning this, it is, however, im- 

 possible to judge without figures or more detailed information concerning the species. 1 



Massospora Peck. 



Massospora cicadina, Peck I. c, p. 44. Leidy, Proc. Acad. Nat. Sci., Phil. Yol. x, p. 235 

 (no name). 



Conidia(?) produced from short hyphae or hyphal bodies, within the host; nearly spher- 

 ical to ovoid, tapering towards a small basal papilla of attachment; smooth or jmpillate- 

 verrucose, 10 X 18 /Jt -18 X 25//, forming a yellowish mass in the abdominal cavity ex- 

 posed as a coherent mass by the falling away of the abdominal rings. Resting spores (?) 

 spherical, roughly reticulated, slightly colored, 38-50 /jt in diameter (Peck). Host not 

 attached to substratum. 



Hosts. Hemiptera: larvae, pupae and imagines of Cicada septendecem. 



Habitat. New York, New Jersey, Washington, D. C, Illinois, Michigan, Texas. 



This singular form should, I think, undoubtedly be placed among the Entomoplitlioreae, 

 although it is decidedly anomalous in some respects. Professor Peck is inclined to place 

 it near Protomyces among the Coniomycetes ; owing perhaps to the fact that the origin 

 of the spore mass from the characteristic entomophthoroid bodies (figs. 415-419) was 

 not apparent in the types. Whether these spores which fill the whole abdominal cavity 

 are morphologically similar to the conidia of Empusae, or are a kind of azygospore or 

 chlamydospore I am unable to say, having examined only dried material in which it 

 was, of course, impossible to discover the exact process of formation and separation. 

 Their general appearance is certainly that of conidia; yet, unless a columella can be 

 demonstrated in connection with their formation they must be regarded as of a different 



1 Entomophthora Anisopliae of Metschnikoff (Zeitschr. d. 

 Kaiserl. Landwirth, Gesell. f. Neurussland, Odessa, 1879, 

 pp. 21-50, with plate), which attacks coleopterous larvae, 

 is perhaps an Isaria, the spores measuring 4.8 X 1.6^. It is 

 placed by Sorokin (I. c. C, p. 268) as belonging to a genus 



of Basidiomycetes which he calls Metarhizium. The names 

 E. macrospora (De Bary Vergl. Morphol. d. Pilze) and E. 

 muacarina (Comptes Rendus, Vol. 89, p. 750) are appar- 

 ently printers' errors. 



