Vol. XXX ] 



ENTOMOLOGICAL NEWS 



195 



was found that they seemed to fall in the genus Melaphis. 

 This had not been suspected or transfers to sumach would 

 have been made to see if by any possible chance these might 

 be the long missing spring migrants of rhois. It is true that 

 they differ quite distinctly from rhois, but a connection with 

 that species would be a remote possibility and worthy of a trial. 

 Since the specimens mentioned no other examples have been 

 found and as the species may not be again met with for several 

 years it seems advisable to publish a description of the insect 

 and thus call the attention of other workers to it in the hope 

 that someone may have the opportunity to study its life history. 



Melaphis minutus n. sp. 



Alate viviparous female. — Color yellowish green. Head and thorax 

 darker. Eyes dark brown. Legs, antennae and borders of wing veins 

 dusky. 



Length from vertex to tip of cauda about 0.96 mm., measurements 

 of the antenna! segments and their sensoria given in the accompanying 



Details of Melaphis minutus. 

 A, Antennal segments IH, IV, and V ; B, Forewing; C, A caudal pore plate 

 from head ; D, Thorax with two pore plates. 



table. Sensoria somewhat oval and transverse with a distinctly visible 

 rim and surrounded with a row of dark black points. It is impossible 

 to ascertain the exact nature of these but under the highest power 

 available they appear as minute, thick spines. Segments IH, IV and V 

 irregularly imbricated (Fig. i-a). Head with three pairs of wax-pore 

 plates visible from above, one of these on the vertex, one on the top of 



