46 ENTOMOLOGICAL SOCIETY 
are pectinated as in the d% except that there is only a single 
branch to each joint of the antennas. .The discal cells of prima- 
ries are always closed, and the difference in venation of the spe- 
cies was pointed out. The secondaries have the cell unusually 
short in this sub-family, and the relation to Gastropacha is 
evident.* 
MAY 13, 1886. 
Four persons present. President Howard in the chair. 
The Corresponding Secretary read the following communica- 
tion from Lieut. Casey, U. S. A. : 
Agflenus brunneus Gyll. A colony of about forty individuals of this com- 
mon European species was taken on the 26th of December last in the sub- 
urbs of San Francisco. The specimens were closely crowded together on 
the underside of a board which had long been imbedded in a thick, grassy 
turf In the United States it has thus far only been recorded from St. 
Louis, Mo. (Horn. Proc. Am. Phil. Soc. , xvii, p. 577). 
I have very little doubt of the identity of these specimens with the Euro- 
pean insect, as they agree almost perfectly with Du Val's description. 
There is, however, a slight difference, which may be due to changed con- 
ditions of life or other similar cause. Du Val states that the European 
species has the prosternum " sillonne' " [grooved.] This part, in the Cal- 
ifornian representatives, is simply punctate, with scarcely any trace of 
grooves or furrows. 
^ 
The Corresponding Secretary further read a letter from Capt. 
Shufeldt, U. S. A., regarding a misprint on page 8 in No. i 
of the Proceedings, Capt. Shufeldt's initials being R. W. and not 
E. A. 
Dr. Marx then read the following paper : 
NOTES ON PHRYNUS Oliv. 
BY GEO. MAKX, M. D. 
On a former occasion, in speaking of Thelyphonus Latr., a member of 
the order Pedipalpi, and of the high place which this order must occupy 
in the class Arachnoidea on account of its advanced organization, I en- 
deavored to demonstrate this latter theorem by pointing out the difference 
in insertion, as well as the change in structure, which the first pair of am- 
bulatory organs have here assumed. 
* For further particulars see Proc. U. S. Nat. Mus., 1866, pp. 414-437. 
