438 
90. Marietta sp. 
First recorded by Fullaway in 1913 from Honolulu, but col- 
lected considerably before that time by Dr. Perkins. The earliest 
specimens that I have seen were taken by Mr. Swezey at Kai- 
muki, on March 8, 1913; others were taken at Kahuku, Oahu, 
July 18, 1919, and at Waikapu, Maui, on March 23, 1924, also 
by Mr. Swezey. It is now a common species on Oahu and 
occurs in a fully winged and apterous condition. In habits it is 
a secondary parasite of Trionymus and Antonina on grasses. 
91. *Marietta carnesi (Howard). 
In 1907, Mr. Kotinsky reported on the introduction of a 
Perissopterus sp. from China, which was reared from Lepid- 
osaphes and liberated in Honolulu in the summer of 1906. In 
1913, Mr. Fullaway recorded a Perissopterus which he had 
reared from a Lepidosaphes sp. at the Federal Experiment Sta- 
tion. The identity of the species concerned in these records is 
not certain, as | have seen no specimens, but there are grounds 
for believing that it was carnesi Howard. At any rate, I cap- 
tured a female of this species on February 10, 1924, in Makiki, 
Oahu, on Schinus infested with Saissetia nigra (Nietn.), and 
later reared a few more specimens from material collected at the 
time. Carnesi has been known previously as a secondary para- 
site of Diaspine scales. It is readily distinguished from the pre- 
ceding species by the very slender scape, which is no wider than 
the pedicel. 
92. Eretmocerus corni Haldeman. 
This species was determined by Dr. Perkins for Kotinsky, 
who recorded it from Honolulu in 1907 as a parasite of Aley- 
rodes hibiscit Kotinsky. I have reared this species from the same 
host collected at Hilo, Hawaii, in January, 1918. 
93. Archenomus perkinsi (Fullaway). 
Described by Fullaway in 1913 from Honolulu, under the 
genus Pteroptrichoides from specimens collected by Kotinsky on 
August 24, 1906. It apparently has never been found elsewhere 
in the Islands. 

* Purposely introduced insects are starred throughout the list. 
