i6o 



17. D. pylaoii sp. nov. 

 PI. XV, figs. 12-14. 



Close to the last, but the lateral keels strai^htlv divergent, 

 and spur with 19 spines. 



Long-wiugcd form (male) tegmina much sh<jrter. Ground 

 color of pronotum and scutellum paler fuscous, lateral keels 

 white; the niesosterna bordered exteriorly with white. 



Slwrt-iiiiigcd form (female of same species?) ; blackish-brown, 

 lateral keels of ])ronotum white. Tegmina subhvaline, dark fus- 

 cous, rather broadly (comparatively) bordered exteriorly from 

 exterobaisal angle to interobasal angle with ivery-whitc. Ter- 

 gites with a median line of ivory white and a lateral and two 

 sublateral, similar (but more broken up) lines. 



Male pygopho.r tricmarginate towards, and at the ventral 

 margin. Genital styles widening out towards their apex, which 

 is subtrnncate, the angles rather rounded, the inner margins 

 on the apical half, irregularly sinuate. Oedeagus arising close 

 to the ventral wall of the anal tube and bending outwards and 

 downwards- a little over the genital st\lcs. There are no spines 

 on the anal tube ventrallv. 



Length 2^ (macr.), 2\ (brach.) mill. 



Hab. Queensland, Cairns (July), Brisbane (JimeV 



t8. puclla. - 

 PI. XV, figs. 1-3. ■ - ■ 



Libnrma pucUa Van Duzee; Forbes and Hart 1900 Bull. Illi- 

 nois Agr. Sta. 60 p. 416. PI. I, f. 2. 



Hab. Queensland. Cairns (Aug.). Redlynch (July) ; Fiji. 

 Suva (Mar.. K.). 



Also, from Xorth America. Xew Jersey. Xew York, Towa and 

 Mississippi (\'an Duzee), Ohio, Kentucky (Swezey). Illinois 

 (Forbes & Hart), on grass, grains and sugar beet. 



The basal segment of the antennae varies from testaceous to 

 blackish. The middle keel of the frons in the Australasian in- 

 dividuals is usually blackish, though sometimes paler fuscous; the 

 Americans are usually whitish. The spur has about 20 spines. 



Male pvgophor oval ; anal tube cleft ventrallv. with 2 diverg- 

 ing spines. Oedeagus a little swollen apicallv. Genital stvles 

 small and laterallv arched, nearly meeting apically. This species 

 is very close to alhicollis, but is a little larger, the posterior angle 



