EVALCES.—OSPHYA. 95 
and more elongate than EF. griseus &c.; the elytra comparatively longer, the upper 
surface more densely punctured. 
Group OSPHYIDES. 
OSPHYA. 
Osphya, Iliger, Mag. Ins. vi. p. 370 (1807) (sine descr.) ; Jacquelin Duval, Gen. Col. Europ. iii. 
p. 882; Gemminger & Harold, Cat. vii. p. 2073. 
Pelecina, Illiger, Mag. Ins. vi. p. 300 (sine descr.). 
Nothus, Olivier, Encycl. Méthod. Ins. viii. p. 384 (1811); Lacordaire, Gen. Col. v. p. 561 (1859) ; 
Leconte & Horn, Class. Col. N. Am. p. 400 (1888). 
Six species of this sharply-defined genus have been described, four from Europe and 
two from North America. We have now to record two from Guatemala, one from the 
Atlantic, the other from the Pacific slope. The male of only one of these has been 
discovered: this has the posterior femora not thickened, the posterior tibiz strongly 
sinuate and with the inner apical angle not abruptly bent inwards and spiniform at the 
tip, and the ventral segments 1-3 each furnished with a stout erect compressed tuber- 
cular elevation, the insect thus differing greatly from the typical species of the genus. 
The name Nothus having been thrice occupied in zoology, we do not follow Lacordaire 
and others in using it. 
- 
The different species are found upon flowers. 
1. Osphya tuberculiventris. (Tab. IV. figg. 25,4; 25a, profile of abdomen.) 
Moderately elongate, rather narrow, the anterior half of the head, the oral organs, the prothorax above and 
beneath, and the meso- and metasternum in the middle, testaceous or reddish-testaceous, the rest of the 
upper and under surfaces black, the disc of the prothorax on each side longitudinally (or almost entirely) 
and the head in front sometimes piceous or black, the surface slightly shining, somewhat thickly clothed 
with short fine pubescence, the suture and two longitudinal stripes on each elytron (towards the side, the 
outer one the broadest) clothed with ashy, the rest of the elytra with black, pubescence, the discoidal 
stripes sometimes not defined or indistinct. Head very closely and finely punctured, the epistoma more _ 
sparsely and coarsely so; antenne slender, comparatively short, extending to about the basal third of the 
elytra, piceous, the three basal and the three or four apical joints more or less testaceous; prothorax 
transverse, the sides expanded, rounded posteriorly, and obliquely narrowing in front, the hind angles 
obtuse, the base truncate but shallowly emarginate in the middle, the surface densely, minutely, and 
uniformly punctured; elytra very densely and finely punctured, the punctures here and there confluent ; 
beneath very closely and finely punctured, the ventral surface much more sparsely punctate towards the 
apex; legs pubescent, piceous, the basal two-thirds of the femora and the basal half of the tibize more or 
less testaceous. 
3. Intermediate tibiz a little curved and at the apex slightly dilated within ; posterior femora not thickened, a 
little curved ; posterior tibiz dilated in the middle and strongly sinuous within, their outer edge straighter ; 
ventral segments 1-3 each with an erect flattened longitudinal elevation in the middle towards the apex 
(fig. 25 a). 
Length 6-6$ millim. (¢ 2.) 
Hab. Guatemata, San Gerdnimo (Champion). 
Six examples, four males and two females. 
