NOTES ON ARADIDAE, III — KORMILEV 253 



of antennal segments 12:9:15:10. Rostrum reaching base of rostral 

 sulcus. 



Pronotum shorter than width across humeri (36:65); forelobe 

 much narrower than hind lobe (54:65). Collum slender, granulate; 

 anterolateral angles rounded, moderately expanded, slightly raised, 

 not produced beyond anterior margin of collum. Lateral borders of 

 hind lobe parallel to each other, granulate, convergent anteriorly, 

 feebly cut out before middle. Foredisc with four (2 + 2) low, granu- 

 late ridges; hind disc densely granulate. 



Scutellum shorter than wide at base (27.5:35); disc granulate, with 

 low, cross-shaped, median ridge. 



Hemelytra not reaching hind border of tergum VI (9) ; apical 

 border of corium rounded, apical angle blunt. 



Abdomen longer than wide (109:81), with slowly rounded sides; 

 postero-exterior angles of connexiva protruding very little; those of 

 connexivum VII almost rectangular, with blunt tip, not produced 

 beyond foreborder of tergum VIII; lobes of VIII relatively large, 

 rounded, reaching to middle of IX; latter sub truncate. Spiracles 

 ventral, II to VII situated far from lateral border, those of VIII 

 sublateral and not visible from dorsal aspect. Connexivum rugose. 



CoLOR.^ — ^Piceous ; base of first antennal segment and round callous 

 spots on connexival segments yellow-brown to chestnut-brown. 



Measurements. — Length 6.7 mm. Width of pronotum 2.16 

 mm. Width of abdomen 2.70 mm. 



Holotype: Female, Loma Bonita, Veracruz, Mexico, July 10, 1948 

 (USNM type 65798). 



Remarks. — M. mexicana is allied to M. reuteri (Bergroth), but it 

 differs from the latter by the following characteristics: lateral notch 

 and four ridges of pronotum sharply marked; long lobes of VIII. 



Mesira costalimaiy new species 



Figures 5, 6 



Male. — Elongate ovate, evenly widening backward to abdominal 

 segment IV, then narrowing posteriorly, covered with setigerous 

 granulation, setae very short and erect. 



Head shorter than wide across eyes ( cf , 23 : 27 ; 9, 27 : 30) . Anterior 

 process moderately long, either parallel-sided (cf) or widening ante- 

 riorly (9), apically rounded and slightly cut out in middle; reaching 

 almost to tip of first antennal segment. Antenniferous tubercles 

 acute, strongly divergent, reaching to middle of first antennal segment. 

 Eyes strongly exserted. Infraocular carinae low, crenulate. Post- 

 ocular tubercles acute, slightly passing outer border of eyes. Anten- 

 nae short, one and a half times as long as head in male (34 :23), slightly 



