March, '05] ENTOMOLOGICAL NEWS 77 



mens in the British Museum. I feel much doubt as to the one 

 which is recorded as from the West Coast of America. Cer- 

 tainly, the Pacific coast of either America would be decidedly 

 unsuited to the nature of this insect, which lives on the roots 

 of our forest trees in the loam of the Piedmont Belt and that 

 of the Mississippi plateau countr)'. 



A New Species of Entomobrya. 

 By H. J. Franklin, B.Sc, 



(Piate V.) 

 Massachusetts Agricultural College, Amherst, Mass. 



Entomobrya albicollis sp. nov. To the unaided eye the adult insect 

 app>ears to be very dark in color with a light band across the dorsum of 

 the body just posterior to the head. This species is very variable in its 

 coloration in different stages, and the adults also seem to vary somewhat 

 in this respect. The anterior portion of the body, as well as the head, 

 seems to be very constant in its coloration, there not being a single speci- 

 men among all the adults and young as well, which I have examined 

 which departs very far from the typical coloration seen in the adults. 

 The long fourth segment of the abdomen, however, may appear light 

 brown or yellow. 



Under the microscope, the insect has quite a different appearance, 

 especially as regards color by reflected light from that which it has by 

 transmitted light, 



By reflected light in bright sunlight the head appears light translucent 

 brown with dark eyespots connected more or less with each other, and 

 with the side margins by dark irregular bands. Mesothorax of same 

 color as head but with a thick hypodermal pigmentation of pure white, 

 anterior margin very dark. Metathorax, as well as first three segments 

 of abdomen, with the exception of their very narrow anterior edges, dirt 

 brown in color. Fourth segment of abdomen sordid brown with a slight 

 tinge of blue, its anterior border marked with large, light yellow, elon- 

 gate-oval spots the anterior ends of which coalesce more or less to form 

 an irregular light yellow anterior margin ; fifth and sixth segments of same 

 color as fourth, the fifth with a conspicuous light yellow spot on each side 

 near the anterior margin — in this respect resembling E. bicolor Guthrie. 

 Antennae very variable, as a rule, with the first three segments ferrugine- 

 ous, a little lighter toward the tips which are rather dark ringed ; terminal 

 segment lighter. Legs quite constant, with femora and trochanters blue, 

 tibiae very light yellow, the anterior ones occasionally spotted somewhat 

 with blue. Manubrium of same color as femora, lighter at distal end. 

 Dentes very light yellow with a slight tinge of brown at the base, yellow 

 fading out toward the af>ex. 



