DOMEN OF MALE 

 ABOVE. 



304 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



pronotuin, sirniod as the posterior femora; anterior tibia armed on the 

 outer niargin above with three spines, unarmed on the inner margin; 

 all the tibitB armed below on both margins with long spines, the 

 middle ones armed above with three or four spines on each mar- 

 gin and the posterior ones armed above on the apical two-thirds with 

 several spines on each margin. Wings not visible beneath the elytra, 

 which are ver}' ])road, nearly twice as long as the thorax and consid- 

 erably swollen in the middle, the lateral fields nearly vertical, the 

 main oblique vein of the tympanum very large and stout, the whole 

 transparent and reticulated with very stout veins. Abdomen plump, 

 cylindrical, not carinate above, extending well 

 beyond the tips of the elytra except in dried 

 specimens where it is much contracted. Cerci 

 (hg. 13) about two times as long as the basal 

 breadth, tapering to the apex, which is abruptly 

 curved inwards, forming a slightly recurved 



Fig. 13. — Nkobarrettia , • i' i i 



IMPERFECTA. TipoFAB- suiootli, hard, bhicK tooth; subgenital plate short 

 FROM .^^(j broad, mesially notched and with a distinct 

 median carina below; apical styles distinct in the 

 specimens examined, but are said to be sometimes absent. The color 

 is described by Rehn as follows: 



Head and pronotum dull lemon-yellow, washed above with wood-brown (faintly 

 in one individual), lightest below. Antenna^ wood-brown. A dull, dark brownish 

 line is continued back of the eye on the superior portion of the lateral lobes of the 

 pronotum. Central portion of the pronotum marked with four rather regular 

 blotches of blackish; the sloping lateral margin with a broad band of white. Elytra 

 green, external border lightest, darkest centrally. Abdomen rich wood-brown, 

 scrambled with dull ochre, beneath pale yellowish. Femora j^ale yellowish green, 

 the posterior part infuscated in several specimens; extremities black in the posterior 

 pair. Tibi;c the same, washed above with a dull purjilish brown. Tarsi blackish. 



MeasuTe)nei\U. — Length, pronotum, 5 mm.; elytra, 8.5; posterior 

 femora, 19; posterior tibia, 20; width, pronotum, in front, 1.5, behind, 

 5; posterior femora, basal ly, 3; apically, 1. 



Type. — In the Academy of Natural Sciences, Philadelphia; paratype. 

 No. 10161, U. S. National Museum. 



Specinums cmmhied. — The tj^pe, shown in fig. 12, a single male 

 taken by O. W. Barrett at Rio Cocula, Guerrero, Mexico, in Decem- 

 ber, 1898, was loaned to me for study by Rehn. Bruner has three 

 males, also taken by Barrett in Mexico, at Cocula and Igula in 

 Guerrero. One of these specimens, a paratype, has been presented 

 to the National Museum by Bruner. 



The following facts relative to the life and habits of this interesting 

 insect are quoted from notes by the collector.'* 



a Trans. Amer. Ent. Soc, XXVII, 1901, p. 229. 



