FAM. MEMBRACID.E 



i39 



Type arquata Say. 



Geographical distribution : Primarily North American genus. The genus contains only a 

 modest number of species but the number of individuals produced by some of the species is enormous. 

 For example, the individuals of V. arcuata, V. segmentata and V. triguttata often appear in certain areas 

 Hterally in countless thousands. 

 I. albifrons Fowler, B. C. A. II : 93. 3 (iSgS). 



2. arquata Say, Journ. Acad. Nat. Sci. Phila. V : 3o2 (i83i). - 



fig. 96. 



apicalis Walker, List Hom. B. M. 533. 33 (i85i). 



3. brunnea 'FowXer, B. C. A. II : 94. 4 (iSgS). 



4. lata Goding, Cat. Memb. N. A. 441. 138(1894). 



5. minnr Fowler, B. C. A. II : 93. 2 (iSgS). 



6. nolina Ball, Proc. Biol. Soc. Wash. \5. 82 (igSa). 



7. punctipennis Funkhouser, Journ. N. Y. Ent. Soc. XXVII 



(■919)- 



8. segmentata Fowler, B. C A. II : 93. i (iSgS). 



9. iesludinea Haviland, Zoolpgica VI : 3. 25i (1925). 



10. triguttata Burmeister, Rev. Silb. IV : i83. 4(1836). 



iripunctata Fainnaire, Rev. Memb. 497. 4 (1846) 

 annexus Townsend, Can. Ent. XXIV : 196 (1892). 

 vestita Goding, Ins. Life V : 92 (1892). 



11. variegata Fowler. B. C. A. II : 94. 5(1895). 



Guatemala, Mexico, Gulf of 

 California. 

 Pl. 7, United States, Canada 



Mexico. 



Western U. S., Mexico. 

 Mexico. . 

 Arizona. 

 4. 275 Colombia. 



Mexico, Guatemala, Panama, 

 western U S. 



British Guiana. 



Southern and western U. S. 



Mexico. 



111. GENUS LALLEMANDIA FUNKHOUSER 



Laliemandia Funkhouser, Journ. N.Y. Ent. Soc. XXX : 33 (1922). 



Characters : This genuswas erected for the accommodation of a single rather remarkable species. 

 The t3'pe species has since been found in two other countries than that of the type locality but no other 

 congeneric forms have been reported. The distinctive features of the genus can therefore be judged 

 only from those structures of the type species which seem to represent generic characters. These may 

 be stated as follows ; head subquadrate, fiat, smooth, twice as wide as high; base sinuate, deeply indented 

 in the middle; eyes enormous, globular. bulging; ocelli prominent, about equidistant from each other 

 and from the eyes and situated a little below a line drawn through centers of eyes; inferior margins of 

 genae sinuate; clypeus extending for half its length below inferior margins of genae. Pronotum convex 

 and bulbous; a transverse constriction just behind humeral angles and another at the base of the pos- 

 terior process together with a deep longitudinal furrow down the median dorsal line, divides the pro- 

 notum into four rounded elevations, arranged in pairs on the posterior surface of the dorsum ; metopidium 

 low and sloping, broader than high; median carina present on metopidium but obsolete behind the line 

 of the humeral angles; no suprahumerals ; humeral angles strong, triangular, somewhat swolIen;pos- 

 terior process suddenly depressed behind last pair of bulbous nodes, flattened, truncate, reaching just 

 beyond internal angles of tegmina; sides of pronotum roughly sculptured, punctate but not ridged, 

 extended downward to cover about one-half of the tegmina. Tegmina hyaline, about half exposed ; five 

 apical and three discoidal cells ; venation irregular; veins heavy; median apical cell triangular and 

 petiolate; apical limbus broad and wrinkled. Legs simple, subcylindrical; hind tarsi longest. 



