300 Mr. H. W. Bates on the Longicorn Coleoptera 
surface clothed with short bristles, finely punctate-striate, de- 
pressed along the suture, tawny brown, with the lateral and 
apical margins and a line from base to apex terminating at the 
sutural angle pale testaceous. Body beneath dusky castaneous ; 
mesosternum with two tubercles in front. Legs pale-reddish 
testaceous, with a large black spot on the outer side of the 
middle and posterior femora. 
Santarem. 
Genus Caius, Serville. 
Serville, Ann. Soc. Ent. Fr. iv. (1835) p. 60. 
The species composing this well-known genus are all of small 
size and of the most diversified colours—some being metallic, and 
others resembling species of various other families of Coleoptera. 
The antenne are filiform, with the joints from the third (inclu- 
sive) gradually and proportionally decreasing in length. The 
tarsal claws have a broad and acute tooth at their base. 
1. Callia fulvocincta, nu. sp. 
C. oblonga, setosa, chalybea, nitida; elytris violaceis, cano tomen- 
tosis, basi fascia lata fulvo-aurantiaca. Long. 3 lin. Q. 
Head glossy steel-blue, thinly clothed with hoary tomentum ; 
front with a deeply impressed longitudinal line. Antenne dark 
metallic blue, setose. Thorax short (much shorter than in the 
allied C. avillaris), glossy steel-blue, smooth, convex. Scutellum 
steel-blue. Elytra oblong, setose, punctured, violaceous, ob- 
scured with fine hoary tomentum; base with a broad tawny- 
orange fascia, broadest a little before the lateral margin. Body 
beneath and legs steel-blue. 
Santarem, flying over masses of dried branches. 
2. Callia chrysomelina, Pascoe. 
Callia chrysomelina, Pascoe, Trans. Ent. Soc. n.s. v. p. 34. 
C. oblonga, postice paulo dilatata, setosa, nigra; capite, thorace, an- 
tennarum articulo basali (apice excepto) femoribusque anticis et 
intermediis (geniculis exceptis) leete ferrugineis; elytris crebre 
punctatis azureis ; corpore subtus chalybeo. Long. 33 lin. Q. 
Liga, dry twigs. SAIOIN, 
3. Callia criocerina, n. sp. 
C. oblongo-elongata, setosa, nigra nitida; capite, thorace, anten- 
narum articulo basali (apice excepto) femoribusque anticis et in- 
termediis (geniculis exceptis) flavis; elytris elongatis, crebre 
punctatis, violaceis. Long. 3 lin. o. 
Head and mouth, except the tips of the palpi, yellow. An- 
tenn a little longer than the body, bluish black ; basal joint of 
the antenne, except the extreme base and the apex, yellow. 
