38 PROCEEDINGS OF THE NATIONAL MUSi:U\r, vol.64 



Habitat. — St. Vincent. Major E. E. Austen has furnished the fol- 

 lowing information regarding the male type in the British Museum: 

 Cruciate bristles absent, post verticals present, middle tibiae with 

 preapical, fu'st vein bare, sections of fourth vein about 1.6 : 1 : 5.5. 

 The species thus finds its best location in Soharocephala. 



57. SOBAROCEPHALA CONVERGENS Malloch. 



(Fig. 31.) 



Heteromeringia convergens Malloch, Occ. Papers Bost. Soc. N. Hist., vol. 5, p. 50 



(1922). 

 Heteromeringia flaviseta Malloch, Proc. Ent. Soc. Wash., vol. 20, p. 7 (1918). 



Entirely yellowish, the bristles yellow, lower part of head and 

 body and the humeri whitish; head robust, front narrowed above by 

 the bulging in of the eyes, cheeks more than one-fourth the eye- 

 height; abdomen sometimes darkened toward tip; wings hyaline, 

 apically with faint cloud about end of second vein; lamellae of 

 hypopygium blimtly triangular, a little longer than wide; 4 mm. 



Recorded from Illinois, Indiana, Virginia, and Missouri. We have 

 specimens from Wliite Mountains, N. H., Plummer Island and 

 Wasliington, D. C, Algonquin, 111., southern Georgia. The species is 

 readily distinct among those from the States in the peculiar shape 

 of the eyes, whose anterior margins diverge strikingly from the level 

 of the uppermost orbital bristle to their lowest point. Malloch 

 described the larva and puparium in his earlier paper, and suggested 

 the possible identity of the species with latifrons. In view of the 

 diflFerent head structure the two species are undoubtedly distinct, a 

 conclusion also evidently reached by Malloch when he bestowed a 

 new specific name on this form. 



58. SOBAROCEPHALA DORSATA Czerny. 



(Fig. 38.) 



Soharocephala dorsafa Czerny, Wien. ent. Ztg., vol. 22, p. 105 (1903). 

 Meriza dorsata Kertesz, Ann. Mus. Hung., vol. 1, p. 571 (1903). 



Ochraceous, posterior part of mesonotum with a quadrate black 

 spot which extends over scutellum and metathorax, sometimes also 

 a supra-alar spot; abdomen largely black; front tarsi brownish; wings 

 nearly hyaline, with a vague apical cloud; arista evidently plimiose, 

 face ochraceous, buccal hairs small, cephalic bristles typically yellow- 

 ish, notal bristles brown, prescutellar setae present. Length, 

 3.5-3.9 mm. 



Distribution. — Originally described from Peru. Specimens agreeing 

 well with the description are before us from Costa Rica, collected by 

 Pablo SchUd. 



