CYDNIN^. 81 



differing by its smaller size, convex lateral margins of the pro- 

 notum, shorter aud relatively broader scutellum, transverse 

 impression to pronotum almost reaching lateral margins, &c. 



Length 8 ; breadth between pi-onotal angles 5 millim. 



Hah. Naga Plills (CAmije//). Burma; Karennee (jPm). Malay 

 Peninsula ; Perak. S.E. Borneo. 



Subfamily IV. CYDNINtE. 



Cydnini, Schwdtc, in Kriiij. Nat. Tidsskr. (2) ii, p. 454 (1849). 



Cvdiiida3, Ball. List Hem. i. p. 109 (1851). 



Cydnida, Stdl, Hem. Afr. i, p. 18 (1864). 



Cydnina, Stdl, En. Hem. v, p. 17 (1876). 



Cydnides, Siijn. Ann. Soc. Ent. Fr. (6) i, p. '2.') (1881). 



AntennsB remote from the lateral margins of the head, inserted 

 near the base of the head, or not more remote therefrom than the 

 anterior margin of the eyes. Costal margin of corium prominent 

 beyond the lateral margin of the abdomen. Pirst abdominal 

 segment, or at least its side, covered by the metasteruum, the 

 extreme posterior margin only visible. Lateral abdominal margins 

 entire, not incised between the segments, the segmental angles 

 not prominent. Tibiae spinose. 



The Cydnina) are universally distributed, and none as yet appear 

 to have been recorded as injurious insects, 8ome are found under 

 stones and similar objects, and many are procured b}^ sweeping 

 low herbage. 



Eighteen genera are here enumerated, but it is more than 

 probable that many forms of these obscure insects await 

 discovery. 



Sipio2ms of Genera. 



1. Scutelluiu moderately long, the lateral 

 luargins longer than the basal. 



A. Eyes obsolete, scarcely visible Cephalocteus, p. 82. 



B. Eyes entire, ordinary, sometimes promi- 



nent. Ocelli visible. 



a. Anterior tarsi inserted before the apex 



of the tibiie. 



a. Posterior tibite tliickened Stibaropus, p. 84. 



b. Posterior tibi;e slender L.\ctistes, p. 86. 



b. Anterior tarsi inserted at the apex of 



the tibiae. ' 



a. Posterior tibise somewhat flattened 



and margined witli short close 



stift' hairs Scopaeipes, p. 88. 



b. Posterior tibiae cylindrical. 



a. Antennae four-jointed Adbisa, p. 89. 



b'. Antennaj five-jointed. 



d^. Margins of the head spinulose, 



setose, or ciliated Cydnus, p. 90. 



b'-. Margins of the head ciliated, 

 not spinulose. 

 YOL. I. G 



