Species of the American Genus Astjlus. 355 



atid fringed with long iiairs at the tip. Penis-slieath stout, 

 abrupt !}• acuminate and liooked at tlie apes. 

 ? . Ventral segment 6 short, simple. 



Hah. Brazil ^^, Rio de Janeiro ^ Santa Catliarina, Bahia. 



The seventeen examples of A. cyanerythrus before me 

 (13 ? ? , 4 c? c?)} belonging to the Britisli Museum, or to 

 the Hope Collection at Oxford, vary greatly in size (length 

 4^-10, breadth 2^-5^ mm.), and to some extent in colour. 

 Tiie two black patches on the disc of the prothorax are often 

 transversely conHuent, and the dark coloration sometimes 

 extends over the whole dorsum, or leaves the basal margin 

 only red ; and the reddish snbmedian and subapical fasciae on 

 the tlj'tra are very narrow in some examples, and not con- 

 nected along the suture, differing in this respect from Perty's 

 figure. Three of the specimens at Oxford are labelled with 

 the ^ISS. names annulalxis, K., longicornis^ K., and speciosus 

 respectively. A normal large (J {speciosus in Alns. Oxon.) 

 has been dissected for examination of the mouth-parts and 

 genital armature. It is possible that the smaller, darker, and 

 more opaque form, also from Rio de Janeiro, may prove to 

 be distinct? The synonymy quoted refers to the larger 

 insect. 



25. Asty lus jatahyen sis . 



Axtylus jatahyensis, Pic, L'Ecliauge, xvii. p. 35 (1902). 

 Astyliis jatahyensis, var. armitagei, Pic, Melanges exot.-entom. xii. 

 p. 8 (Jan. 1915). 



Moderately elongate, rather convex, shining, the elytra 

 dnller, clothed with erect, black bristly iiairs intermixed with 

 scattered cinereous pubescence, the vestiture of the under 

 surface long, cinereous ; black, the antenna in great part, 

 the prothorax with the entire margin, the elytra with the 

 sutural and outer margins and a narrow .'-shaped streak 

 running down the middle of the disc to near the apex, the 

 coxae, and legs (the tarsi, posterior femora, and posterior 

 tibiae in part excepted) testaceous; the head closely, the 

 prothorax rather sparsely punctured, the elytra irregularly 

 asperato-punciate, with the interspaces alutaceous. Head 

 rather short and broad, arcuately impressed in front ; antennas 

 moderately long. Prothorax transversely convex, hollowed 

 in the middle at the base, shallowly sulcate posteriorly. 

 Elytra not very long, iiarailel, with or without two feeble 

 costse on tlie disc, the apices narrow, rounded. 



(J. Ventral segment 5 feebly arcuato-emarginate, 6 short, 

 triangularly notched at apex. Tegmen truncate at tip. 

 Penis-sheath acuminate. 



26* 



