854 



KEY TO SPECIES. 



1. Ptei'oniorplni' lounded anteriorly and extendin;; almost 



to the tip of the rostrum 2. 



I'teromorpha- truncate in front and not extendin;i' beyond 

 the anterior margin of the abdomen 4. 



2. Pteromorpha' smooth: antero-ventral margin deeply emar- 



ginate cuKnyiiififa. 



Pteromorpha' somewhat wrinkled; antero-ventral margin 



irregularly rounded 3. 



o. Abdomen unicolor; with four large. sube(pi;(l bi-istles situated 



on the posterioi' margin nilmsfn. 



Abdomen with eight dark spots on the <lorsiim: no bristles 

 on the posterior margin i)chjjiinivf(tt<L 



4. With a translamella 5. 



Without a translamella 10. 



5. Pseudostignratic organ short, snbcapitate 6. 



PwSeudostigmatic organ long, clavate or lanceolate i). 



6. Translamella short, very broad, being as liroad as long. 



sj)n/ni/<'inni/(i. 



Translamella very narrow, almost reduced to chitinous 

 ridges 7. 



7. Translamella curved gradually l)ackward from the ends to 



the center KiiiiiKd'uhifu. 



'J'ranslamella doul)ly curved, giving rise to a small median 



cusp 8. 



S. Lamellar hairs one and a half times ms long as the la- 

 mella' tin-jiiild. 



Lamellar hairs scarcely as long as the lamelhr iniiiiisculn. 



{). Femora of legs 11 with lateral blade-like expansions. /Ww/yw'.s'. 

 Femora of legs II without lateral blade-like expan- 

 sions (iiiihi inclldhi. 



10. Abdomen oltlong. beingmn(di longer than l)road 11. 



Aljdomen globose 13. 



11. Pseudostigniatic organs slender, lanceolate, nml clavate. 12. 

 Pseudostigmatic organs short, sulicapitate... nrhorcii. 



