346 The Philippine Journal of Science 1923 



Apparently following the post-Stalian and entirely erroneous 

 disposition of Signoretia, Matsumura described as tettigoniellids 

 the genera Onukia and Oniella; 4 but both of these are closely 

 related to Pythamus and Dryadomorpha, and the position of 

 their ocelli with the accompanying head structure is essentially 

 similar to that in Signoretia, Pythamus, Paropia, and Dryado- 

 morpha. Oniella shows some remarkable resemblances to Bal- 

 billus, the position of ocelli with accompanying structures being 

 very similar. 



Melichar evidently recognized the relationship of Pythamus 

 and Signoretia since he placed them together, but in the Tetti- 

 goniellidse. 5 Distant 6 leaves Signoretia near T ettigoniella but 

 separates Pythamus as an unattached genus at the end of the 

 series ; 7 Chudania, a nearly related genus, he leaves unattached 

 at the opposite end of the series. 8 Kirkaldy, in describing Tor- 

 tor and Dryadomorpha, recognized that they were out of place 

 in the phrynomorphine series. As previously stated, Stal cor- 

 rectly placed Signoretia near Megophthalmus. 



In his first work above mentioned, Distant also refers to my 

 suggestion of the very close relationship of Preta and Signoretia, 

 expressing surprise in italics that at the same time differential 

 characters should be given. Do not subgenera, also, have dif- 

 ferential characters? In the present paper a new species of 

 Preta is described that brings Preta and Signoretia still closer 

 together and breaks down one of the conspicuous differences 

 supposed to separate them. 



This complex is composed of isolated and peculiar types that 

 find no place in other series of jassoid insects, and yet they 

 present fundamental anatomical similarities which indubitably 

 indicate far closer relationship between them than with other 

 Jassoidea. It is essentially an Old World group, though Paro- 

 pulopa is reported from North America, and an entirely peculiar 

 group (Koebeliidse) occurs in the American Pacific coast states. 

 It seems probable that a number of other aberrant African and 

 Asian genera, scattered through the phrynomorphine and other 

 series, should be removed to the neighborhood of the Stenocotida?. 

 The history of the classification of the jassoid insects is that 

 of most large groups, though no attempt has been made toward 



4 Annot. Zool. Japon. 8 1 (1912) 44-46. 



' Homop. Ceylon (1903) 161. 



"Fauna Brit. India, Rhynch. 4 ( (1908) 232. 



