tlie Fauna of ^xo\\\q\\i\cq\.v. 4)57 



lately different structure of meso- and metasterna and by 

 the presence of a sutural stria on tlie posterior part of the 

 elytra. Its prostcrnum is longer than in those species of 

 Ci/clonolum with which I have compared it ; the raised 

 niesosterual lamina is much more elongated and does not fit 

 nearly so closely to the front of the metasternum, there 

 being a depression at tlie point of meeting. The Central 

 American Cyclonutam jjosticatum Sharp also diflers from its 

 congeners in having the mesosternal lamina much elongated, 

 but in that species the lamina is differently formed and fits 

 much more closely to the front of the metasternum than it 

 docs in C. urichi. The oblong-oval form of the body slightly 

 recalls Dactylostenmm, but C. urichi ditfers widely from 

 that genns in the structure of its underside and in the entire 

 absence of seriate punctuation on the elytra. Altogether it 

 seems best to retain it as a very aberrant Cijclonutum. — 

 H. Scott. 



Hemiptera. 



4. Microvelia insignis, sp. n. (PL X. figs. 4 & 5.) 



Winged form. — Head and pronotum black; hemelytra 

 black, with rather more than basal third greyish white and a 

 small spot at apex dusky grey ; body beneath black ; an- 

 tennae, rostrum J coxse, and legs pale ochraceous, extreme 

 apices of the femora infuscate, apices of the tarsi black ; an- 

 tennae with the first and second joints robust, first distinctly 

 longer than second, third and fourth slender, a little the 

 longest, and almost subequal in length; head with a central 

 longitudinal subcarinate line; pronotum with the lateral 

 angles obtusely prominent ; hemelytra with the veins distinct 

 and slightly ochraceous on the basal white area. 



Apterous form. — Body above black, about basal half of 

 connexivum very pale ochraceous, the first two abdominal 

 segments obscure greyish. 



Long. 2 mm. 



Localities. 'JVinidad, summit of El Tucuche, 3100 feet, 

 20. iii. 1912; from between leaf -bases of Tillandsia sp., 

 1 winged and 6 wingless specimens. Dominica, from above 

 freshwater lake, about 3000 feet, 29. iii. 1912; leaf-bases 

 of undetermined bronieliad, 1 specimen (wingless). 



TrjiJe (winged specimen) presented to British Museum ; 

 apterous specimens in Cambridge University Museum. 



A very distinct species by the structure of the antennae 



