THE ORTHOPTERAN GENUS TRIMEROTROPIS. 



BY JEROME MCNEILL, STANFORD UNIVERSITY, CAL. 



I have recent!}' finished a revision of except only Tf. thalassica. The type 



Trimerotropis Stal and as its publica- of this species should be in the National 



tion is likely to be somewhat dela\ed MuseLim but I have not been able to 



it has been thought best to publish the find it theie. I have not been able to 



key with brief notes on the most im- examine Saussure's types but with a 



portant svnonomy and the localities few exceptions I have satisfactoril}* de- 



of the species. Through the kindness termined his species. The genus is one 



of the National Museum, Dr. Scudder of the largest and most difficult of 



ami Di'. Bruner I have been able to Orthoptera but with a single exception 



study the types or t3-pical specimens of it contains species of little economic 



all the species described in this country importance. 



KEV TO TRIMEROTROPIS. 



A '. Tegmina plain isabelline, not banded and with spots not segregated into 

 groups extending across the wing. Frontal costa* sulcate as strongly above 

 as below the ocellus, its carinae continuous with the carinae of the vertex. 

 Pronotum with the disk flat. Area of the cubital forks narrow and w^ith few 

 exceptions occupied wholly or in part by a single row of* quadrate cells. Wings 

 always long witli the disk greenish yellow or hyaline throughout. Posterior 

 tibiae never blue. ........ Agonozoa subg. n. 



a^. Lateral lobes of the pronotum with a dentation en the posterior part of the 

 lower border. 



b^. General color pale testaceous, very jilain. Wings transpai-ent without 

 a trace of a fuscous band. Tegmina without bands and with a very few spots 

 restricted almost entirely to the middle field. Posterior femora light on the 



* Tr. coqititletti lias the frontal costa mostly solid above the ocellus. 



