228 PROCEEDINGS OF THE ACADEMY OF [April, 



Vonones lateralis n. sp. 



Dorsum with a large brown spot in middle of sides, in front and behind 

 reticulate greenish-yellow, many yellow spots here and there, and 

 also scattered yellow granules, the posterior tubercles large, hardly 

 acute and bearing small spinules, basal joint of mandibles spinulose 

 above. Legs yellow, more or less marked with fine black lines. Pos- 

 terior segments brown, with yellow dots, four larger dots on the last 

 segment. Venter rufous, granulate, a prominent quadrangular 

 yellow spot on each hind coxa near the tip. The coxse above end in 

 three small teeth, the trochanters on inner side with two teeth at tip; 

 hind femora with a series of teeth above and below near tip as in 

 Erginus, no teeth longer than the width of the joint. Length 6.5 mm. 



Several from Turrialba, Costa Rica (Tristan). 



CYNORTINA n. gen. 



Gonyleptidse, subfam. Stygninse. Spiracles distinct, hind coxse 

 free at apex, much broader than a ventral segment; eye-tubercle broad, 

 with two short blunt projections between eyes; legs short, tarsi I with 

 3 joints, II with 7, III with 6, IV with 6 joints; palpi not very long, 

 joints cylindrical, and each with a few spiniform bristles. 



Cynortina tarsalis n. sp. 



Very dark brown, the tips of the coxse, trochanters, femora, and 

 tibiae pale, also tips of femora and tibise of palpus pale. Dorsum 

 smooth, a few low granules in transverse rows on the dorsal shield, 

 lateral margin of shield with a submarginal row of stronger granules, 

 a few small ones on hind margin and on each of the posterior segments ; 

 legs without granules, except under all femora, and patella and tibia 

 IV; all legs with fine short hairs, coxa IV below has a small tooth lying 

 close to venter, hardly discernible. The palpus has four spines on 

 outside of femur (two near base), and one on inner side near tip; 

 patella one on inner side; tibia two on outer side, three on inner side; 

 tarsus with two on each side; claw fully one-half as long as tarsus. 

 Length 4 mm. 



La Palma, Costa Rica (Tristan). 



Meterginus signatus n. sp. 



Dorsum dark red-brown, a large yellowish patch each side over 

 coxse II and III, and another behind, reticulate, over coxse IV, the two 

 each side are indistinctly connected, no yellow V-mark, nor borders 

 to segments. Venter red-brown; legs yellow, reticulate with blackish. 

 Dorsum smooth; posterior tubercles small, rounded, wide apart; 

 basal joint of mandibles granulate above, second joint in the male is 



