202 Annals Entomological Society of America [Vol. V, 
by the position of the discoidal nervure (Banchogastra) and 
by the absence of a transverse carina on the metathorax 
(Pycnophion et al.). 
Ophiogastrella maculithorax sp. nov. 
Female. Length 7-8 mm. Head, thorax and legs pale yellow; 
metathorax, antenne at base and abdomen fulvus; remainder of an- 
tenne and indistinct stains at anterior angles of metanotum more or 
less piceous; a large spot enclosing the antennz and three broad longi- 
tudinal stripes on the mesonotum, deep blue-black. Of the mesonotal 
stripes, the lateral ones are abbreviated just before the anterior margin, 
and the median one extends from the anterior margin to just beyond the 
middle. Head smooth and shining; maxillary palpi slender, with the 
apical four joints subequal; face much narrowed below and the front 
above, by the eyes; the latter bare, almost attaining the base of the 
mandibles. Ocelli forming an equilateral triangle, separated by nearly 
their own diameter, the lateral ones very close to the eye margin. 
Entire thorax and pleure shining, smooth and polished, except for very 
fine punctulation on the mesonotum and metathorax. Mesopleura 
with a moderately distinct punctate impression medially. Abdomen 
very slender to the base of the third segment, then strongly enlarged 
and compressed; first segment slightly longer than the second; third, 
fourth, fifth and sixth subequal, each one-fourth shorter than the 
second; following segments very short. Ovipositor one-third shorter 
than the third segment. Wings hyaline, veins piceous, stigma fuscous. 
Legs very long and slender, tarsal claws small. 
Described from three females, collected at light by Mann 
and Heath. Independencia, Parahyba, Brazil. 
This is a small, slender species easily recognized aside from 
its structural characters, by the striking maculation of the 
mesonotum. 
Ophionellus Westw. 
Thesaur. Entom. Oxon., p. 128, Pl. 24, figs. 3, 3a, 3b, 3c. (1874). 
Mr. Mann obtained a specimen of this remarkable genus 
which represents a species different from O. fragilis Westwood, 
the type of the genus. It agrees very closely with Westwood’s 
species and is surely congeneric, but on comparing it with 
Cresson’s Pharsalia virginiensis, I find that the latter is gener- 
ically distinct, although the two genera have been regarded as 
synonomous. 
The more salient differences may be tabulated as follows: 
Pharsalia Cress. Sides of head behind the eyes rounded; antenneze 
short, filiform, about 25-jointed, but little longer than the head and 
thorax; anterior wing with a distinct, although small stigma. 
