352 Mi;. E. SHELFOED ON A COLLECTION OF 



backwards. Supra-anal lamina transverse with arcuate posterior margin. 

 Cerci short, slenderly acuminate. Sub-genital lamina symmetrical, with two 

 slender hirsute styles. Tibise short, equal to half the length of the femora ; 

 front tibife with 4 apical spines and 1 spine on the outer margin ; mid-tibise 

 with 5 apical spines, 2 on the inner margin near the apex and 4 on the outer 

 margin ; hind-tibise with 4 apical spines, 4 on the inner margin and 6 on the 

 outer margin. Mid- and hind-femora with strong genicular spines. 



Total length 4-1 mm. 



This does not appear to correspond with any of the species figured by 

 Germar and Berendt. The dorsal surface is marked by silvery streaks, due 

 to the air entangled in the pubescence. 



HOLOCOMPSA FOSSILIS, sp. n. (PI. 48. fig. 22.) 

 ^ . No. 5452. 



Castaneous. Eyes reniform, wide apart. Antennse slender, about equal 

 to the total length of the insect, not ciliated, apical joints moniliform. Vertex 

 of head projecting considerably beyond the pronotum, which is trapezoidal, 

 posteriorly truncate, and provided with an erect pubescence, sides deflexed. 

 Scutellum exposed. Tegmina exceeding the apex of the abdomen ; the 

 mediastinal and anal fields, the basal two-thirds of the marginal field, and 

 the extreme base of the discoidal field opaque, castaneous ; the remainder 

 of the tegmina hyaline. A sub-hyaline spot between the anal field and 

 marginal field. The opaque part of the tegmina with a delicate recumbent 

 pubescence. Veins very slender, about 7 or 8 costals, radial vein ramose at 

 apex, about 9 discoidal oblique sectors, anal vein strongly angled. Wings 

 with a prominent stigma on the anterior margin, formed by the incrassated 

 rami of the mediastinal vein and by the fusion of some of the costal veins ;; 

 rami of ulnar vein numerous, flexuose. Supra-anal lamina transverse, sub- 

 bilobate ; sub-genital lamina more produced, posteriorly emarginate, and with 

 two slender styles. Cerci slender and rather elongate, with 9 joints. Legs 

 and abdomen beneath rufous. Genicular spines on all the femora, , Tibial 

 spines stout. 



Total length 7'1 mm. ; length of tegmina 5"5 mm. 



The single specimen is in aii admirable state of preservation and is certainly 

 the gem of the whole collection. By great good chance the right tegmen 

 stands out at a considerable angle to the body, revealing perfectly the structure 

 of the wing beneath. The species is undoubtedly most closely allied to the 

 recent H. viinutissima, de Geer, from Surinam. 



