22 ACARIDEA. 
Male unknown. Body of the female ovoid, the skin of the abdomen greyish-brown, 
marbled with small dark spots and strie. Occipital plate triangular with rounded 
angles, on its dorsal surface with black, comparatively large dimples. The general 
colour of the occipital plate is shining black, with a large amber-yellow spot on its 
posterior angle, which continues towards the anterior margin as a broad chestnut-brown 
stripe. On the humeral margin of the scutum the punctiform dimples are wanting. 
Frontal plate shining, black, with a few punctiform dimples and two oblong frontal 
holes, truncate behind, angulate in front. Mandibles black at their base, becoming 
yellowish towards the apex, bearing five hooks on each side, which are arranged two 
and three on two branches. Palpi shining, dark brown, bearing a few short bristles, 
abruptly depressed or almost concave on their inner surface, convex externally, the 
fourth joint inserted excentrically on the third one. Legs dark brown, with some 
bristles. Stigmatic plate triangular, with rounded angles and a claviform stigmatic 
fissure. Stigma proper arcuate, with swollen margins. 
I accidentally found one specimen of this species among a lot of 4. mixtum collected 
at Retalhuleu. I dedicate it to my friend Prof. A. Forel, the well-known myrme- 
cologist. 
3. Amblyomma crassipunctatum, sp.n. (Tab. XIV. figg. 1, la-Lh, 3.) 
g. Corpus ovatum, postice late rotundatum, depressum, cuticula foveolis punctiformibus sat profundis areis 
levigatis irregulariter intermixtis instructa. Color obscure rubro-fuscus, maculis albidis secundum 
marginem corporis distributis: macula magna rhomboidea regionem humeralem utriusque lateris occupat, 
macule quatuor parve in interstitiis 3°, 5°, 7°, et 9° inter sulculos marginis postici siti sunt. In margine 
laterali maculee duse vel tres adsunt. Scutum frontale supra planum, nitidum, fuscum, lateribus convexe 
declivibus, sine foveis frontalibus, sulculis obliquis irregularibus nec non punctis subtilibus impressis atque 
striis paucis albidis ornata. Rostrum et palpi clarius rufo-fusci. Palporum articulus quartus in tertii 
apice centraliter insertus. Arca mandibularis in utroque latere hamulis tribus in duos ramos distributis. 
Hamulorum apices colore succineo nitentes. Hamulus secundus primi rami bidentatus. Dentes maxillares 
simplices, unicolores transparentes vitrei, dense conferti, squamiformes, modice erecti. Lamina stigmatica 
parva, triangulato-semilunaris, fissura stigmatica parva, claviformi, rima stigmatis arcuata. Valvula 
analis utriusque lateris setis quinque armata: tribus in margine interno, duabus in margine postico sitis. 
Fissura genitalis transversa, in area polygona sita, Jabris incrassatis. Pedes rufo-fusci, ad apicem articu- 
lorum albido-annulati, setulis armati. 
Long. corp. 7°5 millim., scuti frontalis cum rostro 2 millim.; lat. 5 millim. 
@ latet. 
Hab. Nitcaracua, Chontales (Janson). 
Body of the male oval, depressed, dark reddish-brown, with many deeply impressed, 
punctiform dimples, between which are a few callous, smooth, irregularly distributed 
spots. A comparatively large rhomboid whitish spot adorns the shoulder-region of each 
side, and on the 3rd, 5th, 7th, and 9th interstices between the furrows of the posterior 
margin there is a small whitish spot. A few irregular spots of the same colour are 
seen on the side margin. The frontal plate is flat, shining, with some oblique furrows 
and impressed dimples; a few whitish stripes interrupt the light chestnut-brown 
