TROMBIDIUM. 5 
7. Trombidium albicolle, sp. n. (Tab. I. figg. 3, 3a.) 
Corpus oblongum, humeris protractis, apice anali rotundato ; coccineum, hirsutulum, maculis atque striis albis 
indutum ; in apice frontali pseudo-prothoracis macula alba; stria transversa lata inter humeros, postice 
linguam latam medianam in abdominis dorsum emittens ; apex analis albus; duc macule albe latero- 
marginales ante corporis apicem site, parve. Coxe lateribus corporis infixe. Pedes longi, graciles, rufes- 
centes, inter se fere equales. Palpi graciles, pilis longis rarioribus instructi; tertio articulo elongato, 
cylindrico ; quarti ungue unidentato, appendicula recta, apice rotundata, ad apicem piligera. 
Long. 0°75-1 millim. 
Hab. Guatemata, Antigua (Stol/). 
Body oblong, rounded behind, the shoulders protruding; pseudo-prothorax trian- 
gular: colour scarlet, with white spots formed by white, thickly-set, velvety hairs ; 
these spots are arranged as follows—a round white one on the frontal surface 
of the pseudo-prothorax, a large T-shaped one on the middle of the dorsal surface 
behind the eyes, an anal one at the end of the body, and two small round lateral ones 
near the margins of the posterior part of the abdomen. Legs, palpi, and mandibles of 
a clear reddish colour. Legs long, slender, the first and fourth pairs a trifle longer than 
the second and third. Third joint of the palpi long, cylindrical; the fourth joint with 
a small tooth on the concave side of its claw, the appendicula straight, parallel- 
sided, rounded at the end, where some stiff hairs are inserted. 
This species is found with the preceding, on bushes in hedges and gardens in the 
valley of Antigua. 
8. Trombidium muricola, sp. n. (Tab. II. figg. 3-3.) 
Corpus breve, obovoideum, convexum, humeris rotundatis, apice frontali rotundata; cuticula levis, sericeo- 
nitida, nigra, maculis et striis albis, variantibus figura. Pedes, palpi et mandibule rufescentes. Pedes 
longi, graciles ; primum par ceteris longius. 
Hab. GuateMaLa, Antigua (Stoll). 
Body short, ovoid, convex, with the shoulders and the frontal and anal apex 
rounded ; smooth, silky-black, with white spots and stripes varying in form in the 
different specimens: in some the dorsal surface of the abdomen bears a white triangular 
spot on its posterior third, and from the acute angle of this, which is directed forwards, 
two narrow stripes proceed obliquely towards the humeri; in others there only remains 
a small white spot at the anal end, and a narrow white streak running across the 
dorsum at a short distance behind the middle, the streak in its centre forming a large 
angle (sometimes connected with the anal spot by a narrow white line) which opens 
towards the frontal apex ; finally, there occur specimens in which the whole body is 
black, except a small white border along the posterior margin. The legs are long 
and slender, the front pair a little longer than the others. Legs, palpi, and man- 
dibles light reddish-brown. 
This species is found in the rainy season on the adobe-walls of the nopal-gardens 
