June 1900.] 



PSYCHE. 



67 



seems from the figure to come very No. 1S5) resembles somewliat Pliloe- 



close to this species, especiall}'^^ in the osiiius as does fig. 4, pi. ix. {Exo/ii/ds 



form of the prothorax and tlie divided obdurefactiis. No. 1005), except that 



e\es. I might also add that fig. ii of in the latter the eyes are divided, 

 the same plate ( Cratoparis arcessitics. 



THE .SPECIES OF HADROTETTIX, A GENUS OF OEDIPODINAE. 



BY SAMUEL H. SCUDDER, CAMBRIDGE, MASS. 



l>^. Band of wings with no taenia 

 directed toward the base in the lui- 

 meral field . . trifasciatiis. 



Hadrotettix was established in 1876, 

 on a clumsy, stril<ingly banded Oedipo- 

 dine with long and rather coarse anten- 

 nae, from the Arkansas River, descril)ed 

 by Sa}' as Gryllns trifasciatiis and fig- 

 ured in 1S2S in his American Entomol- 

 ogy. No species has since been added 

 to the group,* although one from Ne- 

 braska lias Ijeen catalogued by Bnmer not following the hind l)order toward 

 on several occasions. I have for some the anal angle, or by a mere cloudy in- 

 time had in my collection a Mexican fuscation. 



//-. Baud of wings sending a humer- 

 al taenia at least one third the 

 distance toward the base of the 

 wings . . . gracilis. 



ci~. Wings crossed by a narrow band 



species of very dift'erent appearance, so 

 far as the markings of the wings go, and 

 recently Mr. Morse has brought from 

 California still another widely ilifterent 

 species. Accordingly I append descrip- 

 tions of the two additional species, leav- 

 ing that named by Brunei' to be described 

 bv him. The four species known to me 

 may be separated by the following 

 table : — 



Table of the species of Hadrotettix. 



a^. Wings crossed by a broad fuscous 

 band, as broad as the metazona, and 

 following'the hind border nearly to tire 

 anal angle ; hind tibiae coral red. 



*Thomas, however, twice described the original species 

 under new names. 



i3'. Nearly the whole ajoical half of 

 tegmina membranaceous, the dense 

 reticulation of the base extending but 

 little beyond the middle ; wings 

 crossed by a distinct narrow fuscous 

 hand witii a humeral taenia ; hind 

 tibiae greenish _yellow . inundus. 

 Ir. Only the apical fotirth of tegmina 

 membranaceous, the rest densely re- 

 ticulated ; wings merely obscured with 

 fuscous clouds just beyond the middle 

 and on the hind border ; hind tibiae 

 reddish yellow . . nebulosus. 



Hadrotettix trifasciatus. 



(iryllns trifasciatiis Say, Amer. 

 ent., iii., pi. 34 (1S2S) . 



Oedipoda trifasciata Walk., Cat. 

 Derm. salt. Brit. Mus., iv, 729 (1S70). 



