464 ENTOMOLOGICAL NEWS. [Dec., 'll 



MIMATOMUS n. gen. 



Runs in Howard's table (Bureau of Entomology, Tech. Ser. 

 No. 12, part iv), to Coccophagus, having the wings without a 

 hairless line, the antennae 8-jointed, with the slender club 3- 

 jointed, the stigmal vein well developed, the marginal a little 

 longer than the submarginal, the hind tibiae normal, etc. The 

 small size and the parasitism on Aleyrodes suggest Encarsia: so 

 also does the large stigmal vein, which is directed apicad and is 

 without a definite knob. The tarsi are 5-jointed ; eyes very dis- 

 tinctly hairy, the hairs quite long; ovipositor projecting very 

 little beyond the abdomen. 



Mimatomus peltatus n. sp. 



$ (measurements all in microns). Length 670; width of head 

 312; length of anterior wing 720, its breadth 312; length of fringe on 

 its lower margin 30: length of submarginal vein 176, of marginal 208, 

 of stigmal 30, end of stigmal vein to end of wing 304; length of 

 antennal club 152; ovipositor projecting beyond abdomen 27. Black, 

 with the scutellum bright yellow, suffused with brown basally, its sur- 

 face with an irregular coarse network sculpture ; wings clear ; antennae 

 ferruginous ; legs pale yellowish or ferruginous, the hind femora and 

 coxae brown. Antennal joints with longitudinal dark lines; scape 

 ordinary; pedicel moderately swollen; funicle joints successively long- 

 er, all conspicuously longer than broad ; parapsidal grooves straight ; 

 axillae formed as in Howard's figure of Prospaltella murtfeldtii; mid- 

 dle tibia 256 long, its spur about three-quarters the length of the basi- 

 tarsus, but very slender and sharp apically. 



ENTOMOLOGICAL THESES FOR DOCTORATES IN AMERICAN UNIVERSITIES. 

 According to the list of theses offered by those who received the 

 degree of doctor of philosophy from American Universities in 1911, 

 published in Science for August 18, 1911, the following bore entomo- 

 logical titles : 



University of Chicago, Robert Kirkland Nabours, Mendelian In- 

 heritance in Orthoptera. 



Columbia University, Charles Virgin Morrill, The Chromosomes in 

 the Oogenesis, Fertilization and cleavage of Coreid Hemiptera. 



Cornell University, Robert Matheson, The structure and Metamor- 

 phosis of the Fore-intestine of Corydalis cornutus L. Edith Marion 

 Patch, Homologies of the Wing-veins of the Aphididae, Psyllidae, 

 Aleurodidae and Coccidae. 



Harvard University, Edward Gaige Titus, Monograph of the species 

 of Hypcra and Phytonomus in America. 



University of Cincinnati, Annette Frances Braun, Observations on 

 the Development of Color in the Pupal Wings of Several Species of 

 Lithocolletes. 



University of Pennsylvania, Norman Eugene Mcldoo, Lyriform Or- 

 gans and Tactile Hairs in Araneads. 



