( 4^9 > 
XX. Supplementary Notes on Dr. Fritz Miiller's paper 
on a new form of larvse of Psychodidae (Diptera), 
from Brazil. By the Rev. Alfeed B. Eaton, M.K., 
F.E.S. 
[Read Oct, 2nd, 1895.] 
With regard to Dr. Fritz Midler's memoir on Maraina, 
any remarks on my part must be limited to the affinities 
of the imago ; because ilhiess and consequent absence 
from England have hitherto prevented my forming even 
the slightest acquaintance with the earlier stages of 
Psychodidae. And now in respect of the imago of 
Maruina, supposing that the author's illustrations of 
the flies seem open to criticism, all that one can do, 
without having seen specimens and in the absence of 
verbal description of the genus and species, is to point 
out where in his figures possible errors or defects may 
be reasonably apprehended, and indicate causes likely to 
have led to their being made if they really were made. 
The absence of descriptions alluded to, arose through 
Dr. Miiller having been unable to complete his study of 
the flies. 
Details of imagines of Maruina are delineated in the 
second plate (pi. xi.) accompanying the memoir. 
Figs. 11 to 13 and 18 to 20 concern M. pilosella; figs. 14 
to 17, M, spinosa. On a general survey of them, one 
would gather from fig. 12 that the flies belong to the 
Subfamily Psychodinse (Etn., Ent. Mo. Mag. for Sept. 
1895), because the radio-cubital nerve-trunk meets the 
subcosta at an acute angle close to the base of the wing : 
figs. 11 and 20 would be referred to a species of Psychoda 
allied closely to Ps. phalsenoides, L., the former re- 
presenting the attitude of the living* fly at rest ; and 
the latter figure genitalia of a pattern very characteristic 
of such Psychodoe: while fig. 16 points suspiciously to 
the possibility of a species of the miscellaneous genus 
Pericoma having furnished some details for the illustra- 
tion of Maruina. Attention would also be arrested by 
* A touch of shading would adjust the pose of the an- 
tennae. — A. E. E. 
TRANS. ENT. SOC. LOND. 1895. — PART IV. (dEC.) 
