Pomona College Journal of Entomolooy 717 



Eyes — Tlircc larji't; ocelli which arc red and very iioticiahlc in the winged 

 i'cMialcs; compound eyes with terete tubercles. 



Antennat — Nearly as long as the body, rc.ieiiini; biyorid tin- bases of the 

 cornicles. Article III not as long as IV and \' togeliier and not as long as VI, 

 or the spur, with single row of large circular sensoria. Spur of VI slightly more 

 than three times as long as the base, but never four times as long, very thin or 

 setaceous. 



Rout rum — Tip coming between tirst and second coxae. 



Cornicles — Nearly as wide or wider at the bases than the length, very slightly 

 eoMstrictcd before the mouth which has a very small rim or flange. 



Lrgs — Small and frail. 



lSIi/Ic — Strongly tapering to a blunt ti|) wliieli is usually straight across, not 

 rounded or constricted at the base, no longir than the cornicles, with very few 

 hairs. 



AiKil l'l(il( — Well developed, semi-globular, hairy. 



li'iiigii — Hyaline, normal in size, venation as in Thomtmia or Chaitophorus, 

 and fairly constant, incision in the u|)|)er wing margin at the tip of the stigma. 



Micrella monelli n. sp. 

 WINGED VIVIPAROUS FE.MALE (Figure 230 A) 

 Length of body 1.2 mm., width of the mesothorax 0.39 mm., width of the 

 abdomen 0. IS mm., wing expansion t.l mm. Body — Very small, slender, hairy. 

 PrcvaUing color — Light green and black. Head — Small, nearly as wide as the 

 prothorax, slightly wider than long, nearly straight across the front, liairv, no 

 frontal tubercles, very dark green or nearly black on dorsal and ventral surfaces. 

 Eyes — Large, with tubercles, dark red, three large ocelli. Antennae — (Figure 

 230 C, D, E). Not on frontal tubercles, nearly as long as the body, slender, 

 imbricated, with few hairs, articles I and II dark green, but not as dark as the 

 head. III light green throughout, IV light green with tij) faintly dusky, V light 

 green with tip nearly black, VI with base dark and base and apical one-third 

 of the filament, or spur, dark. Lengths of the articles: I, 0.05 mm.; II, 0.038 

 mm.; Ill, 0.21. mm.; IV, 0.16 mm.; V, 0.18 mm.; VI, 0. 12 mm. (base 0.10 mm., 

 filament or spur 0.32 mm.) ; total 1.088 mm. Article I is wider and longer than II, 

 III is shorter than VI or the filament of VI, not twice as long as either IV or VI 

 and not nearly so long as the sum of the two, IV not so long as V and half as long 

 as the spur of VI, VI with base much shorter than either IV or V and not quite 

 one-third so long as the filament, which is very slender. The large circular 

 sensoria are arranged in a row on III, varying from four to seven in number. 

 There is but one large one at the apex of V and one large one and many small 

 ones on VI at the base of the filament. Rostrum — Reaches to the second coxae, 

 light green or yellow with dark tip. Prothorax — Scarcely wider than the head and 

 not so long, hairy, dusky green, but lighter than the head or the other two thoracic 

 segments. Mesothorax, dorsum dark green with muscle lobes black, ventral 

 surface all black except the coxae, which are light green. Metaihorax — Green 

 with dark dorsal markings which appear in shape like a goblet with the base at 



