2 ENTOMOLOGICAL NEWS . [Jan., '19 



some specimens one or two may be present. The fourth segment has 

 one large, and the fifth one large and several small sensoria. The 

 rostrum reaches slightly beyond the third pair of coxae and has a very 

 distinctive structure. Plate I, A, fig. 6. The third and fourth segments 

 are quadrangular, while the fifth is but a small half moon-shaped piece 

 closely attached to the fourth segment. The nectaries have a very 

 small, narrow, cone-shaped base. The cauda is triangular and ends in 

 a nipple-like projection. The legs and front part of the head are set 

 with prominent long spline-like hairs. Length of body 2.2 mm. 



Alatc viviparous female. General color the same as in the apterous 

 forms, except that the thoracic shield is deep brown and the head and 

 prothorax are dusky brown. The body is elongate and slender, and 

 the general shape and size of the antennae, beak, abdomen, nectaries 

 and cauda are like those of the apterous forms, except the antennal 

 sensoria on the third segment and the legs, which are longer and more 

 slender in this form. The third antennal segment has two or three 

 large circular sensoria, usually widely separated. The wings are long 

 and slender, with the median vein once forked. The base of the fork 

 is very indistinct and in some specimens cannot be distinguished. Each 

 branch becomes more distinct towards the distal part. 



Measurements. Length of body, 2.5 mm. Length of antennal seg- 

 ments, III, 0.187 mm.; IV, o.i mm.; V, 0.145 mm.; total length, 0.62 

 mm. Length of wing, 2.78 mm. Length of hind tibia, 1.34 mm.; hind 

 tarsus, o.i mm. and 0.187 mm. Length of beak, 0.92 mm. 



Essigella pini new species. (Plate I, B, figs. 1-6). 



Description made from specimens collected on Finns vir- 

 g'mlana, by W. L. McAtee, at Plummers Island. Maryland, 

 June 27 and 28, 1914. This species resembles very closely 

 Essigella californica Essig, described from California, but 

 several distinct differences are easily found. The main dif- 

 ference is found in the length and shape of the hind tibiae and 

 the wings. The hind tibiae of E. pini are short and stout while 

 those of . californica are longer and slender. The wing of 

 the former species normally has but a simple median vein, 

 while the latter has normally two or more or less connected 

 branches. Specimens in balsam. Types in writer's collection. 



Apterous viviparous female. .General color a light yellowish green, 

 with a series of rows of small brown spots on the abdomen. The fore 

 part of the body is quadrangular, while the abdomen tapers to a point. 

 The antennae are five-segmented and of a peculiar shape, as shown in 

 the accompanying drawing. The rostrum of this species and of H. 

 californica are also quite distinct and are unlike that of any other 



