96 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



uestly advocate disregarding it, as its recognition results in a 

 most serious revolution in our orthopterological nomenclature. 

 This disastrous effect is due to the fact that the type species 

 conocephalus is not a member of the g^ntis Conocephalus as that 

 term has been understood for almost a century. It is, on the con- 

 trary, what we have known for many years as Xiphidium. 

 Hence our well-known genus Xiphidium, correctly spelled 

 Xiphidion, is relegated to the synonymy under Conocephalus. 

 Thus we lose from our lists this universally known genus and 

 the even better known genus Conocephalus is worse than lost, 

 being retained, but in an entirely different sense. Confusion 

 does not stop here, as further disastrous results follow. Thus 

 the subfamily Xiphidina? now becomes Conocephalinae, while 

 the subfamily hitherto known as Conocephalinae must now be 

 called by the unfamiliar name Copiphorinae, the oldest in- 

 cluded genus, after the removal of Conocephalus^ being Copi- 

 phora Serville. The species commonly placed in the genus 

 Couocephalnsa.TiQ distributed among Karny 's genera Neocono- 

 cephaliis, Euconocephalns, and ffomoccryphus. Karny di- 

 vided what he considered Conocephalus into three subgenera, 

 naming all of them as above. This was wrong, as one of the 

 groups into which a higher one is divided must retain the old 

 name, but in this case the genus treated as Conocephalus was 

 not really that genus, not having included the type species. 

 Thus all three of Karny 's names can be used. 



"Of the subfamily Copiphorinae (Conocephalinae as hither- 

 to understood) I have a new genus represented by two female 

 specimens from the upper Pequini River, Panama, collected 

 by Mr. Allen H. Jennings in Match, 1909. This genus I call 

 Dectinomima, in reference to the remarkable superficial re- 

 semblance the species bear to certain of our Decticimu. The 

 absence of plantulae beneath the hind tarsi and the lack of 

 spines on the anterior tibiae above preclude its being classed 

 in that subfamily. The foramina of the anterior tibiae are 

 shell-shaped, the pronotum is without carinae and all the fe- 

 mora and tibiae are spined beneath. The elytra are scarcely 

 visible beneath the pronotum. The ovipositor is short, stout, 

 and strongly curved upwards. The species, which I call 

 /eiiniugsi in honor of the collector, is black, with the fore and 

 middle legs and top side of the hind femora reddish brown. 

 The tip of the ovipositor is reddish tinged, and the end of 

 the fastigium is light yellowish in color. The basal segment 

 of the antenna is black, but the succeeding two or three are 

 tinged with reddish. The eyes are brownish. The fastigium 



