Experiment Station Record, Volume 92, January-June, 1945 Page: 84
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84 EXPERIMENT STATION RECORD [Vol 92
Suggestions for grouping the families of acalypterate cyclorrhaphous Diptera
on the basis of the male terminalia, G. C. CRAMPTON. (Mass. State Col.).
(Ent. Soc. Wash. Proc., 46 (1944), No. 6, pp. 152-154).
Lygus Hahn: Six new species from western North America (Hemiptera:
Miridae), H. H. KNIGHT (Iowa State Col. Jour. Sci., 18 (1944), No. 4, pp. 471477).-The
growing importance of Lygus spp. as pests of leguminous crops has
prompted further studies of this genus; six new species and one variety are
A revised classification of the Reduvioidea, with a new subfamily from South
America (Hemiptera), R. L. USINGER. (Univ. Calif.). (Ann. Ent. Soc. Amer.,
36 (1943X), No. 4, pp. 602-618, illus. 3).-Includes phylogenetic and identification
keys to the families and subfamilies of the reduvioid bugs, with a new subfamily
and a new genus.
A case of parental care in the Heteroptera, S. W. FRosT and V. R. HABER.
(Pa. State Col.). (Ann. Ent. Soc. Amer., 37 (1944), No. 2, pp. 161-166, illus.
10).-The authors discovered and here describe a marked case of parental care in
a species of Pentatomidae, Meadorus lateralis (Say), along with its geographical
distribution and life history stages.
A catalogue of Oregon Coccinellidae, B. MALKIN (Jour. N. Y. Ent. Soc.,
51 (1943), No. 3, pp. 191-198).-This annotated list contains 78 species and 15
varieties of ladybird beetles.
Feeding habits of two mealybugs, Pseudococcus comstocki (Kuw.) and
Phenacoccus colemani (Ehrh.), E. H. GLASS (Virginia Sta. Tech. Bul. 95
(1944), pp. 16, illus. 16).-The feeding habits of the Comstock mealybug were
studied on leaves and wood of apple, Irish potato sprouts, and sweetpotato stems.
Similar studies were made of P. colemani on geranium leaf petiole, sweetpotato
leaf, and calla lily leaf. These mealybugs were found to have similar feeding
habits. Bristles usually followed an intracellular path and sought out phloem
tissues. In some instances the bristles probed in several directions in order to
find a suitable tissue without being completely withdrawn., A sheath similar
to that described for other plant-sucking insects was found about the bristles.
Since these sheaths remained after the bristles were withdrawn, the former location
of the bristles was indicated. On stained material the cell walls were stained
green, the sheath bright red, and the bristles took neither stain.
Biology of Allotropa burrelli, a gregarious parasite of Pseudococcus comstocki,
D. W. CLANCY. (U. S. D. A.). (Jour. Agr. Res. [U. S.], 69 (1944),
No. 4, pp. 159-167, illus. 2).-The introduction of A. burrelli Mues. into the United
States from Japan was begun in 1939 for propagation and release against the
Comstock mealybug in eastern apple orchards. Biological observations have shown
that development is normally monembryonic, although twinning may rarely occur.
The parasite body, which becomes closely associated with the host fat body,
increases approximately 24 times during incubation, nourishment being elaborated
by the trophamnion with its paranuclear masses. The larval -state is correspondingly
reduced to a single instar with one pair of anterior spiracles and unusual
mouth parts. From 1 to 22 adult parasites issued per host, of which 67-75
percent were females. All nymphal stages of the host are attacked, and ovarian
dissections disclosed an average of 565 eggs per female. The life cycle ranged
from 26'to 38 days, with an average of 31 days at 75'-80 F. Overwintering
occurs as mature larvae within the mummified mealybug body.
Head-capsule measurements of southern armyworm larvae (Prodenia eridania
(Cramer)), E. L. MAYER and F. H. BABERS. (U. S. D. A.). (Ann. Ent. Soc.
Amer., 37 (1944), No. 2, pp. 214-220, illus. 2).-Measurements of the head-capsule
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U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations. Experiment Station Record, Volume 92, January-June, 1945, book, 1947; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc5064/m1/97/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.