NO. I 



BLACK FLIES OF GUATEMALA — DALMAT 



59 



Dalmat (i95oa,c; 1952a) presented experimental data on the flight 

 range and longevity of wild-caught flies of the principal anthropophilic 

 species of Simuliidae as well as a technique for inducing oviposition 

 of these species by exposing them to CO2. Dalmat and Gibson (1952) 

 gave results of experiments on flight range and longevity of infected 

 flies, and Gibson and Dalmat (1952) discussed three new potential 

 intermediate hosts of onchocerciasis. Dalmat (1951) reports the find- 

 ing of 18 additional species in Guatemala, 9 of which he described as 

 new (Dalmat, 1949, 1950b, 1951). He reallocated various species to 

 other genera and subgenera and gave the distribution of the 36 

 species which he listed for Guatemala at that time. In 1952(b), he 

 described two additional new species and in 1953 and 1954, he de- 

 scribed two more new species and included one new record. At the 

 present time, 41 species of Simuliidae are known to exist in Guate- 

 mala. They are : 



5". (D.) acatenangocnsis Dalmat 



Cnephia aguirrei Dalmat 



Gigantodax aquamnrensis (De Leon) 



S. (D.) ardent Dalmat 



S. (£.) aureiim (Fries) 



S. (B.) benjamini Dalmat 



5". (H.) burchi Dalmat 



S. (L.) calHdnm (Dyar and Shannon) 



S. (H.) capricornis De Leon 



S. (H.) carolinae De Leon 



S. (L.) colvini Dalmat 



S. (H.) delatorrei Dalmat 



S. (L.) downsi Vargas, Martinez, and 



Diaz 

 S. (L.) dugesi Vargas, Martinez, and 



Diaz 

 S. (D.) earlci Vargas, Martinez, and 



Diaz 

 S. (H.) ethelae Dalmat 

 S. (N.) exiguum Roubaud 

 S. (L.) haematopotum Malloch 

 5". (L.) Jacob si Dalmat 

 5". {S.) jacumbae Dyar and Shannon 



S. {S.) jobbinsi Vargas, Martinez, and 

 Diaz 



S. (S.) kompi Dalmat 



S. (H.) larz'ispinosum De Leon 



S. (D.) mathcsoni Vargas 



S. (S.) metalHcnm Bellardi 



S. (D.) mexicammi Bellardi 



S. (//.) microbranchium Dalmat 



6". (H.) nigricornis Dalmat 



S. {S.) ochraceum Walker 



Cnephia pacheco-lunai (DeLeon) 



S. {S.) parrai Vargas, Martinez, and 

 Diaz 



S. (D.) ptdverulentiim Knab 



Cnephia roblesi (DeLeon) 



5". (D.) rubicundnhim Knab 



S. (L.) samboni Jennings 



S. (D.) smarti Vargas 



.S. (5".) tricornis DeLeon 



S. (L.) trivittatiim Malloch 



S. (L.) veracruzanum Vargas, Marti- 

 nez, and Diaz 



Gigantodax ivrighti Vargas, Martinez 

 and Diaz 



S. (D.) yepocapense Dalmat 



Dalmat (1954), in an ecological study of Simulimn ochraceum, 

 mctallicum, and callidian, the principal anthropophilic species in Guate- 

 mala, presented for the first time the resting places of these flies during 

 the day and night. Optimum stream conditions for development of the 

 immature stages, plant associations, and associations of species breed- 



