SCOLOCHRUS. 133 
opposed to the anterior band in its convexity, and often composed of two nearly-connected spots, the sutural 
and lateral margins also narrowly dark brown; underside and legs flavous, the breast piceous. 
Hab. Muxtco, Acapulco in Guerrero (Hoge). 
S. gamma might almost be mistaken for one of the varieties of S. decoratus, from 
which, as well as from the other species of the genus, it differs in its finely rugose 
thorax and elytra and opaque appearance. I have taken for the type the specimen 
with the darkest markings, the colour in the other examples being dark fulvous, and 
the markings frequently represented by spots only; the Y-shaped mark of the thorax 
in all is plainly and clearly visible. The female has, as usual, the eyes separated, but 
in the male they are absolutely approximate. Nine specimens. 
27. Scolochrus fallax. (Tab. XXXVIIL. fig. 19.) 
Scolochrus fallax, Suffr. Monogr. in Linn. Entom. xvi. p. 207°. 
Pachybrachys humeralis, Stal, Ofv. Vet.-Ak. Forh. xvi. p. 617. 
Hab. Panama, Volcan de Chiriqui, David (Champion).—CoLomB1A2, Cartagena !; 
Braziu (coll. Jacoby). 
This species is one of the most variable of the genus Scolochrus in regard to colour, 
and one of which Suffrian has described no less than ten varieties. The Panama 
specimens agree in having a fulvous head, thorax, and legs (the latter alone being some- 
times darker), and black elytra, the anterior part of the lateral margin excepted (a 
single male, however, has a white apical spot on each elytron, and a small pale central 
spot on the left one only) ; but they differ slightly in sculpture from Suffrian’s description, 
this author stating that “the male insect has the elytral punctures very closely placed 
between the suture and the shoulder, and that scarcely any arrangement of rows is 
perceptible at that portion ”—in the Panama male specimens all the rows are distinctly 
separated, and visible below the middle as well as at the base, while the females agree 
with the author’s description in having the rows indistinct below the middle. The 
narrow white lateral margin to the basal portion of the elytra and the similarly-coloured 
pygidium and sides of the abdomen are exactly as in the type; and I think that the 
above-mentioned differences in regard to the punctuation are probably local. 
An example from David is figured. 
28. Scolochrus modestus. (Tab. XXXVIII. fig. 20.) 
Black, the labrum, the sides of the thorax, the pygidium, and the sides of the abdomen white; thorax strongly, 
the elytra closely and distinctly, punctured, the basal margin of the latter with a yellowish spot. 
~Length 1 line. 
g. Of about the same small size as S. menutus. The head black, punctured at its lower portion only ; the eyes 
divided by a very narrow space; two small spots below the eyes, placed transversely, and the labrum, 
yellowish ; antennz black, the basal joints more or less piceous; thorax nearly three times as broad as 
long, with a deep and broad oblique depression on each side, the lateral margins narrowly yellowish-white, 
this colour also extending along a part of the anterior margin, the rest of the surface black, strongly and 
