152 A Monograph of Cidicidae. 



55. Abdomen with large flat projecting 

 lateral scales, with deeply dentate 

 apices, in more or less dense tufts. 



Wing scales of Culex type 



Genus 58 Lasioconops. Theobald. 

 855. Abdomen with scaly ventral tufts. 

 Wing scales pyriform, dense and 



mottled Genus 59 Finlaya. Theobald. 



Scutellum nude except for two 



lines of scales. 

 Head with small flat scales, with 

 a median line of narrow-curved 

 ones. 

 Thorax mostly nude ; scales on 



scutellum long and thin 



Genus 60 Bancroftia. Lutz. 

 Head with broad, short curved 

 scales, those at sides broader 

 and flatter but not spatulate ; 



scutellar scales broadish 



Genus 61 Pneumaculex. Dyar. 

 II. Eyes very large, completely fused 



in middle line Genus 62 Oculeomyia. n. g. 



III. Eyes small ; scutellum with a large 

 backwardly projecting process 



Genus 63 Rachionotomyia. Theo- 

 bald. 



Genus JANTHIN0S0MA. Arribalzaga. 



Conchyliastes. Morgan, Howard and Coquillett.* 



Dipt. Argentina, p. 52 (1891), Arribalzaga ; Mono. Culicid. L, p. 253 (1901), 

 and III., p. 124 (1903), Theobald; Handbk. Gnats, 2nd ed., p. 337 

 (1902), Giles; Gen. Ins. Fam. Culic, p. 16 (1905); Les Moust., p. 231 

 (1905), Blanchard ; Class. Mosq. North and Mid America, Tech. Se. 11, 

 U.S. Dept. Agri., p. 17 (1906), Coquillett. 



SYNOPTIC TABLE OF SPECIES. 



I. Last two hind tarsals white. 

 Head honey yellow. 



Thorax with scattered yellow and bronze 



scales sayi. nov. nom. 



(musica. Say.) 



* This was a temporary MS. name used, but never definitely, as the 

 genus was identified with Janthinosoma. The MS. name was printed on 

 Plate B of the Atlas of Plates, and escaped observation before the plate 

 had been set (spelt Conchyliatcs). 



