146 Journal New York Entomological Society. [Vol. xiv. 



45. Allotettix chipmani, new species. 



A very graceful species with unusually elongated pronotum and wings. Eyes 

 rather prominent, the vertex about as wide as one of the eyes, only a trifle projecting 

 beyond their anterior edge, broadly sulcate and provided with a strong median carina 

 which reaches back nearly to the front edge of the pronotum, antero lateral edges 

 rounded and furnished with prominent carinas. Face rounded and furnished with 

 prominent carina;. Face viewed in profile rather oblique, strongly sinuate, the fron- 

 tal costa between the antenna profound and deeply sulcate, gently widening below. 

 Antennae arising just below the eyes, slender. Ocelli located about the middle of 

 inner edge of eyes, of ordinary size. Pronotum narrow, the process greatly attenu- 

 ate and surpassing the tips of hind femora by their own length ; the median carina 

 percurrent, a little prominent in advance of the humeral angles just back of the ante- 

 rior margin ; the latter squarely truncate ; disk of pronotum both rugose and finely 

 granulate, the ruga;, particularly in widest portion, inclining to form longitudinal or 

 diagonal carina; ; lower posterior angles rounded. Tegmina normal. Anterior 

 and middle femora not clypeate, about normal, the hind femora a little elongate. 

 First and third joints of hind tarsi subequal. 



General color dull black or brown, conspersed with testaceous, much paler be- 

 neath. Tarsal joints black-tipped. Wings dusky apically, and with the disk dark 

 purplish pearl color. 



Length of body, cf, 7 mm., 9, 9 num.; of pronotum, c?, 12 

 mm., 9, 14-15 mm.; of hind femora, cf, 5 mm., 9, 6-6.25 mm. 



Habitat. — Island of Trinidad and adjoining portions of British 

 Guiana, H. D. Chipman and R. J. Crew, collectors, many specimens 

 of both sexes (Coll. L. Bruner). 



46. Micronotus quadriundulatus Redtenbacher. 



Tetlix quadriundulatus Redt., Proc. Zool. Soc. Lond., 1892, p. 208, PI. XVI, 



tig. 10. 



This insect is represented by several specimens of both sexes. H. 

 D. Chipman, collector. 



An examination of this material seems to indicate ihatquJriu/iJu- 

 latus is either very variable or else there are two or more closely re- 

 lated species found upon the island of Trinidad. In the first examina- 

 tion a smoother form with but three undulations of the pronotum was 

 set aside under the name Micronotus hancocki. Another and later 

 examination reveals a third form in which there are five such undula- 

 tions. To definitely settle this matter a much larger series of speci- 

 mens is necessary. 



Two or three additional forms appear among the excellent collec- 

 tion of these interesting little locusts that were received from Mr. 

 Chipman, but they will be reported on at a later date after they have 



