’ 
MONTHLY LETTER OF THE BUREAU OF ENTOMOLOGY 
q UNITED STATES DEPARTMENT OF AGRICULTURE __ 
ay 




Number 155 March, 1927 


rn ag a TERNS 
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TAXONOMIC INVESTIGATIONS 
S. A, Rohwer, Entomologist, in Charge 
\ 
Dr. E. A. Chapin spent March 3, 4 and 5 in Philadelphia, studying 
types of Coleoptera, especially those belonging to the genus Ptilodactyla, 
since his return to Washington he has completed a short paper on Ptilodac- 
tyla, describing new species, one of which is injurious to roses in 
greenhouses. 
tee 
Dr. H. E. Ewing left March 16 for a trip to Texas, Arizona, New 
Mexico, and Louisiana, to make field observations on scorpions. He hopes 
to determine some means of controlling the species which frequent dwellings, 
and to obtain material for the Museum collection. In Louisiana he hopes to 
Obtain specimens of adult chiggers, so as to continue his experiments on 
their life history and habits. He expects to return to Washington early in 
May. . 
F. Nevermann, of Costa Rica, spent three days of the week of March 
21 in Washington. While here he became acquainted with the various special- 
ists in the Taxonomic Division, examined the collections, and consulted 
about specimens which he had forwarded. Mr. Nevermann is a very good field 
observer, and has sent to the specialists interesting specimens of Coleop- 
tera, and many ants and termites. He has a large collection of Costa Rican 
Coleoptera, which numbers about 5,000 svecies. 
f P. W. Fattig, curator of the museum of Hmory University, Atlanta, Ga., 
recently spent a week in Washington, consulting with the pose the 
‘Section of Insects, getting many specimens of insects de ternipedse ootaae 
‘ranging to send other specimens as a gift to the Museum collection an r 
determination, 
) j isburg, Pa., 
J. H. Knull, of the Bureau of Plant Industry, Harrist ; 
visited the Section of Insects on March <9 and 30 ACRE Ee eee 
: Buprestidae and Cerambycidae in the collection, especially the st 
were described by Casey. 
During the month of March, Dr. Béving has studied the rere 
family Mylabridae, and has completed a short Ips fednrrgnaiie Te 
keying out the species which are represented in the pepe ret ate” reat ‘ 
i From this study Dr. Boving is able to separate very soe ‘ 
of many of the common species of yeevils of the genus Mylavris. 

