Dr. Malcolm Burr’s Revision of the Genus Diplatys. 25 
2.2. Segmentum ultimum dorsale ¢ 
paullo dilatatum, abdomine vix 
latius; forcipis pars dilatata 
brevis, a supero aegre distin- 
guenda; species indicae. 
3. Segmentum penultimum ventrale 
) é lateribus rotundatis, margine 
: postico leviter sinuato; forcipis 
k bracchia ¢ robusta, leviter 
p arcuate... |. . A, lefroyi, Burr 
3.3. Segmentum penultimum ven- 
orale é fortiter angustatum, 
margine postico in lobum 
truncatum producto; forci- 
pis bracchia graciliora, fortius 
SP ae Te 
f arcuata . . . 5. angustatus, Burr 
D 1.1. Forcipis bracchia ¢ ane hand valde 
a dilatata. 
2. Pronotum duplo longius quam 
latius, parallelum ; species brasi- 
liensis. (Pronotum femoraque 
pallida, nigro-vittata) . . . . 6. thoracicus, Dohrn 
2.2. Pronotum haud plus quam 1} 
longius quam latius, vel aeque 
longum ac latum. 
3. Antennae segmentis 4 globulari, 
5 pyriformi (segmentum penul- 
timum ventrale angustum ; 
parallelum, apice rotundatum ; 
pronotum longius quam latius ; 
colore fulvo-rufo, species brasi- 
Rensisy ys. : . 7. gracilis, Stal 
3.3. Antennae peementis Seetibuls 
cylindricis vel subcylindricis. 
4, Occiput ¢ margine postico ipso 
incrassato, plus minus 
reflexo; (pronotum aeque 
longum ac latum; species 
neotropicae). 
5. Segmentum ultimum dorsale 
abdomine vix latius; colore 
rufo, nigro-variegato. . . 8. jansoni, Borm. 
5.5. Segmentum ultimum dor- 
sale ¢ abdomine dimidio 
latius; coloreatro. . . 9. severa, Borm. 
