PAEOPOMALA. 41 



two nearly equal transverse sulci crossing the dorsal surface, the posterior one situated a little behind the 

 middle; median carina slight, but visible throughout. Prosternum with scarcely any indication of 

 protuberance or spine. Tegmina of moderate width, extending a little beyond the apex of the abdomen. 

 Front and middle legs short and slender, the hind femora moderately stout, about four-fifths the length 

 of the abdomen ; hind tibiae provided with 12 spines in the outer row. 

 Length of body, $ , 35, of antennae 11, of pronotum 6, of tegmina 25*5, of hind femora 16 millim. 



Hab. Noeth America, Indio, California (Wickham). 



Three females. This appears to be the largest and most robust species of the genus 

 thus far discovered, and, judging from its greenish colour, probably frequents lower 

 ground than do its allies that live in places where the vegetation is normally somewhat 

 short and dry.] 



3. Paropomala dissimilis, sp. n. 



Very like P. virgata, Scudd., but larger and with the colours more decided. Head slightly wider than the 

 front edge of the pronotum, about as long as the prothorax, and provided with a well-defined carina that 

 begins at the front edge of the vertex and extends backwards over the middle of the occiput to the front 

 edge of the pronotum ; pronotum gently constricted in the middle, the median carina linear but distinct, 

 severed by two transverse sulci, the lower lateral edges feebly produced, much less so than in P. pallida. 

 Tegmina reaching the tip of the abdomen. 



General colour pale testaceous above, lighter below, with a dark brown longitudinal stripe reaching from the 

 middle of the back edges of the eyes to a point just above the insertion of the hind femora ; below this 

 dark band there is one of equal width and length, which is white. Tegmina with the median vein dusky, 

 the costal margin whitish, the median and dorsal areas dull testaceous. 



Length of body, $ , 32-5, of pronotum 5-25, of tegmina 21*5 millim. 



Hab. Arizona, South California, or Northern Mexico (coll. Calif. Acad. Sciences). 



The only specimen of this species which has been examined is the one contained in 

 the collection of the California Academy of Sciences. It was among material collected 

 by Gustav Eisen in Southern Arizona, California, and Northern Mexico, and submitted 

 to the writer for determination. The specimen, a female, lacks both antennae and hind 

 femora, but differs so markedly in shape and in the comparative size of its head that it 

 is described without hesitation as distinct. 



[4. Paropomala virgata, Scudd. 



Paropomala virgata, Scudd. Pysche, viii. p. 437 (1899) \ 



Hal. North America, Colorado, Nebraska, California, New Mexico, Arizona, &c. l 



This is by far the most abundant and, at the same time, the most widely distributed 

 species of the genus. Specimens have been collected by A. P. Morse at Mesilla, New 

 Mexico (June 29th) ; between Gila Bend and Yuma, Arizona (July 4th) ; and in 

 California, at Palm Springs (July 12th), Cahon Pass (July 10th), Lancaster (Aug. 1st), 

 and Kern City (Aug. 4th). It has also been found as far north as Eastern Colorado 

 and South-west Nebraska.] 



biol. centr.-amer., Orthopt., Vol. II., January 1904. Gg 



